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DTC Fehlertext Beschreibung
P0102 Mass Air Flow (MAF) Circuit Low Input The MAF sensor circuit is monitored by the PCM for low air flow (or voltage) input through the comprehensive component monitor (CCM). If during key ON engine running the air flow (or voltage) changes below a minimum calibrated limit, the test fails.
P0103 Mass Air Flow (MAF) Circuit High Input The MAF sensor circuit is monitored by the PCM for high air flow (or voltage) input through the comprehensive component monitor (CCM). If during key ON engine OFF or key ON engine running the air flow (or voltage) changes above a maximum calibrated limit, the test fails.
P0106 Barometric (BARO) Pressure Sensor Circuit Performance Baro sensor input to the PCM is monitored and is not within the calibrated value.
P0107 BARO Sensor Low Voltage Detected Sensor operating voltage is less than 5.0 volts (VREF), as a result it failed below the minimum allowable calibrated parameter.
P0108 BARO Sensor High Voltage Detected Sensor operating voltage is greater than 5.0 volts (VREF), as a result it failed above maximum allowable calibrated parameter.
P0109 BARO Sensor Circuit Intermittent The sensor signal to the PCM is failing intermittently.
P0112 Intake Air Temperature (IAT) Circuit Low Input Indicates the sensor signal is less than Self-Test minimum. The IAT sensor minimum is 0.2 volts or 121°C (250°F).
P0113 Intake Air Temperature (IAT) Circuit High Input Indicates the sensor signal is greater than Self-Test maximum. The IAT sensor maximum is 4.6 volts or -50°C ( -46°F).
P0117 Engine Coolant Temperature (ECT) Circuit Low Input Indicates the sensor signal is less than Self-Test minimum. The ECT sensor minimum is 0.2 volts or 121°C (250°F). Note on some vehicles that are not equipped with an ECT sensor, CHT can be used and can set this DTC.
P0118 Engine Coolant Temperature (ECT) Circuit High Input Indicates the sensor signal is greater than Self-Test maximum. The ECT sensor maximum is 4.6 volts or -50°C ( -46°F). Note on some vehicles that are not equipped with an ECT sensor, CHT can be used and can set this DTC.
P0121 Throttle Position (TP) Circuit Performance Problem The TP sensor circuit is monitored by the PCM for a none closed throttle Position at idle. If key ON engine running self-test terminates upon placing the transmission range selector in gear (DRIVE or REVERSE) or when closing the throttle (idle) after opening it (in PARK or NEUTRAL) the TP closed throttle Position is not attained, the test fails.
P0122 Throttle Position (TP) Circuit Low Input The TP sensor circuit is monitored by the PCM for a low TP rotation angle (or voltage) input through the comprehensive component monitor (CCM). If during key ON engine OFF or key ON engine running the TP rotation angle (or voltage) changes below a minimum calibrated limit, the test fails.
P0123 Throttle Position (TP) Circuit High Input The TP sensor circuit is monitored by the PCM for a high TP rotation angle (or voltage) input through the comprehensive component monitor (CCM). If during key ON engine OFF or key ON engine running the TP rotation angle (or voltage) changes above maximum calibrated limit, the test fails.
P0125 Insufficient Coolant Temperature For Closed Loop Fuel Control Indicates the ECT sensor has not achieved the required temperature level to enter closed loop operating conditions within a specified amount of time after starting engine.
P0127 Intake Air Temperature Too High Indicates that IAT2 sensor has detected a potential abnormality in the intercooler system. This condition will cause the boost from the supercharger to be bypassed to avoid potential engine damage.
P0131 HO2S Sensor Circuit Out of Range Low Voltage (HO2S-11) The HO2S sensor is monitored for a negative voltage known as characteristic shift downward (CSD). If the sensor is thought to be switching from 0 volts to -1 volts during testing, the PCM will use this input and remain in fuel control.
P0133 HO2S Sensor Circuit Slow Response (HO2S-11) The HEGO Monitor checks the HO2S Sensor frequency and amplitude. If during testing the frequency and amplitude were to fall below a calibrated limit, the test will fail.
P0135 HO2S Sensor Circuit Malfunction (HO2S-11) During testing the HO2S Heaters are checked for opens /shorts and excessive current draw. The test fails when current draw exceeds a calibrated limit and /or an open or short is detected.
P0136 HO2S Sensor Circuit Malfunction (HO2S-12) The downstream HO2S sensor(s) are continuously checked for maximum and minimum voltages. The test fails when the voltages fail to meet the calibrated limits.
P0141 HO2S Sensor Circuit Malfunction (HO2S-125) See DTC P0135.
P0151 HO2S Sensor Circuit Out of Range Low Voltage (HO2S-21) See DTC P0131.
P0153 HO2S Sensor Circuit Slow Response (HO2S-21) See DTC P0133.
P0155 HO2S Sensor Circuit Malfunction (HO2S-21) See DTC P0135.
P0156 HO2S Sensor Circuit Malfunction (HO2S-22) See DTC P0136.
P0161 HO2S Sensor Circuit Malfunction (HO2S-22) See DTC P0135.
P0171 System to Lean (Bank 1) The Adaptive Fuel Strategy continuously monitors fuel delivery hardware. The test fails when the adaptive fuel tables reach a rich calibrated limit.
P0172 System to Rich (Bank 1) The Adaptive Fuel Strategy continuously monitors the fuel delivery hardware. The test fails when the adaptive fuel tables reach a lean calibrated limit.
P0174 System to Lean (Bank 2) The Adaptive Fuel Strategy continuously monitors the fuel delivery hardware. The test fails when the adaptive fuel tables reach a rich calibrated limit.
P0175 System to Rich (Bank 2) The Adaptive Fuel Strategy continuously monitors the fuel delivery hardware. The test fails when the adaptive fuel tables reach a lean calibrated limit.
P0176 Flexible Fuel (FF) Sensor Circuit Malfunction The FF sensor input signal to PCM is continuously monitored. The test fails when the signal falls out of a maximum or minimum calibrated range.
P0180 Engine Fuel Temperature Sensor A Circuit Low Input (EFT) The comprehensive component monitor (CCM) monitors the EFT sensor circuit to the PCM for low and high voltage. If voltage were to fall below or exceed a calibrated limit and amount of time during testing, the test will fail.
P0181 Engine Fuel Temperature Sensor A Circuit Range/ Performance (EFT) The comprehensive component monitor (CCM) monitors the EFT Temperature for acceptable operating temperature. If during testing voltage were to fall below or exceed a calibrated limit, a calibrated amount of time the test will fail.
P0182 Engine Fuel Temperature Sensor A Circuit Low Input (EFT) The comprehensive component monitor (CCM) monitors the EFT sensor circuit to the PCM for low voltage. If voltage were to fall below a calibrated limit and amount of time during testing, the test will fail.
P0183 Engine Fuel Temperature Sensor A Circuit High Input (EFT) The comprehensive component monitor (CCM) monitors the EFT sensor circuit to the PCM for high voltage. If voltage were to exceed a calibrated limit and a calibrated amount of time during testing, the test will fail.
P0186 Engine Fuel Temperature Sensor B Circuit Range /Performance (EFT) See DTC P0181.
P0187 Engine Fuel Temperature Sensor B Circuit Low Input (EFT) See DTC P0182.
P0188 Engine Fuel Temperature Sensor B Circuit High Input (EFT) See DTC P0183.
P0190 Fuel Rail Pressure Sensor Circuit Malfunction (FRP) The comprehensive component monitor (CCM) monitors the FRP sensor to the PCM for VREF voltage. The test fails when the VREF voltage from the PCM drops to a voltage less than a minimum calibrated value.
P0191 Fuel Rail Pressure Sensor Circuit Performance (FRP) The comprehensive component monitor (CCM) monitors the FRP pressure for acceptable fuel pressure. The test fails when the fuel pressure falls below or exceeds a minimum /maximum calibrated value for a calibrated period of time.
P0192 Fuel Rail Pressure Sensor Circuit Low Input (FRP) The comprehensive component monitor (CCM) monitors the FRP sensor circuit to the PCM for low voltage. If voltage were to fall below a calibrated limit and amount of time during testing, the test will fail.
P0193 Fuel Rail Pressure Sensor Circuit High Input (FRP) The comprehensive component monitor (CCM) monitors the FRP sensor circuit to the PCM for high voltage. If voltage were to fall below a calibrated limit and a calibrated amount of time during testing, the test will fail.
P0201 through P0212 Cylinder #1 through Cylinder #12 Injector Circuits The comprehensive component monitor (CCM) monitors the operation of the fuel injector drivers in the PCM. The test fails when the fuel injector does not operate electrically even though the harness assembly and fuel injectors test satisfactorily.
P0217 Engine Coolant Over-Temperature Condition Indicates an engine overheat condition was detected by the cylinder head temperature (CHT) sensor. This condition will cause the boost from the supercharger to be bypassed to avoid potential engine damage.
P0222 Throttle Position Sensor B (TP-B) circuit low input  
P0223 Throttle Position Sensor B (TP-B) circuit high input  
P0230 Fuel Pump Primary Circuit Malfunction NOTE: For natural gas applications, the following description applies to the fuel shutoff valve (FSV) circuit. The PCM monitors the fuel pump (FP) circuit output from the PCM. The test fails if: With the FP output commanded ON (grounded), excessive current draw is detected on the FP circuit; or with the FP output commanded OFF, voltage is not detected on the FP circuit (the PCM expects to detect VPWR voltage coming through the fuel pump relay coil to the FP circuit).
P0231 Fuel Pump Secondary Circuit Low NOTE: For natural gas applications, the following description applies to the fuel shutoff valve monitor (FSVM) and the fuel shutoff valve power (FSV PWR) circuits. The PCM monitors the fuel pump monitor (FPM) circuit. The test fails if the PCM commands the fuel pump ON and B+ voltage is not detected on the FPM circuit.
P0232 Fuel Pump Secondary Circuit High NOTE: For natural gas applications, the following description applies to the fuel shutoff valve monitor (FSVM) and the fuel shutoff valve power (FSV PWR) circuits. The PCM monitors the fuel pump monitor (FPM) circuit. This test fails when the PCM detects voltage on the FPM circuit while the fuel pump is commanded OFF. The FPM circuit is wired to a pull-up voltage inside the PCM. The FPM circuit will go high if, with the key ON and the fuel pump commanded OFF, the FPM/FP PWR circuit loses its path to ground through the fuel pump. The FPM circuit will also go high if the FPM /FP PWR circuit is shorted to Power.
P0234 Supercharger Overboost Condition The PCM disables (bypasses) the supercharger boost and sets a diagnostic trouble code (DTC) to keep from damaging the powertrain (engine or transmission) during Potential harmful operating conditions.
P0243 Supercharger (Boost) Bypass Solenoid Circuit Malfunction The PCM monitors the supercharger (boost) bypass (SCB) solenoid circuit for an electrical failure. The test fails when the signal moves outside the minimum or maximum allowable calibrated parameters for a specified SCB solenoid duty cycle (100% or 0%) by PCM command.
P0298 Engine Oil Over Temperature Condition Indicates the Engine Oil Temperature Protection strategy in the PCM has been activated. This will temporarily prohibit high engine speed operation by disabling injectors, therefore reducing the risk of engine damage from high engine oil temperature. Note: On engines which are equipped with an oil temperature sensor, the PCM reads oil temperature to determine if it is excessive. When an oil temperature sensor is not present, the PCM uses an oil algorithm to infer actual temperature. Engine shutdown strategy function is the same on vehicles with and without oil temperature sensors.
P0300 Random Misfire The random misfire DTC indicates multiple cylinders are misfiring or the PCM cannot identify which cylinder is misfiring.
P0301 through P0310 Misfire Detection Monitor The misfire detection monitor is designed to monitor engine misfire and identify the specific cylinder in which the misfire has occurred. Misfire is defined as lack of combustion in a cylinder due to absence of spark, poor fuel metering, Poor compression, or any other cause. Last digit is the cylinder #.
P0320 Ignition Engine Speed Input (Profile Ignition Pickup (PIP)) Circuit Malfunction The ignition engine speed sensor input signal to PCM is continuously monitored. The test fails when the signal indicates that two successive erratic profile ignition pickup (PIP) pulses have occurred.
P0325 Knock Sensor 1 Circuit Malfunction (Bank 1)  
P0326 Knock Sensor 1 Circuit Range/ Performance (Bank 1) The knock sensor detects vibrations upon increase and decrease in engine rpm. The knock sensor generates a voltage based on this vibration. Should this voltage go outside a calibrated level a DTC will set.
P0330 Knock Sensor 2 Circuit Malfunction (Bank 2)  
P0331 Knock Sensor 2 Circuit Range /performance (Bank 2) The knock sensor detects vibration upon increase and decrease in engine rpm. The knock sensor generates a voltage based on this vibration. Should this voltage go outside a calibrated level a DTC will set.
P0340 Camshaft Position (CMP) Sensor Circuit Malfunction The test fails when the PCM can no longer detect the signal from the CMP sensor.
P0350 Ignition Coil (Undetermined) Primary / Secondary Circuit Malfunction Each ignition primary circuit is continuously monitored. The test fails when the PCM does not receive a valid IDM pulse signal from the ignition module (integrated in PCM).
P0351 Through P0360 Ignition Coil A through J Primary/ Secondary Circuit Malfunction Each ignition primary circuit is continuously monitored. The test fails when the PCM does not receive a valid IDM pulse signal from the ignition module (integrated in PCM).
P0385 Crankshaft Position (CKP) sensor malfunction  
P0400 Exhaust Gas Recirculation (EGR) flow malfunction  
P0401 EGR Flow Insufficient Detected The EGR system is monitored during steady state driving conditions while the EGR is commanded on. The test fails when the signal from the DPF EGR sensor indicates that EGR flow is less than the desired minimum.
P0402 EGR Flow Excessive Detected The EGR system is monitored for undesired EGR flow during idle. The EGR monitor looks at the DPF EGR signal at idle and compares it to the stored signal measured during key ON and engine OFF. The test fails when the signal at idle is greater than at key ON engine OFF by a calibrated amount.
P0411 Secondary Air Injection (AIR) system upstream flow See DTC P1411.
P0412 Secondary Air Injection System (AIR) switching valve A malfunction The PCM attempts to control when air is injected in the exhaust. The DTC indicates a Secondary Air injection system AIR circuit fault.
P0413 Secondary Air Injection System (AIR) valve A circuit open  
P0414 Secondary Air Injection System (AIR) valve A circuit shorted  
P0416 Secondary Air Injection System (AIR) valve B circuit open  
P0417 Secondary Air Injection System (AIR) valve B circuit shorted  
P0420 Catalyst System Efficiency Below Threshold (Bank 1) Indicates Bank 1 catalyst system efficiency is below the acceptable threshold.
P0430 Catalyst System Efficiency Below Threshold (Bank 2) Indicates Bank 2 catalyst system efficiency is below the acceptable threshold.
P0440 Evaporative emission control system malfunction (Probe)  
P0442 EVAP Control System Leak Detected (Small Leak) The PCM monitors the complete EVAP control system for presence of a small fuel vapor leak. The system failure occurs when a fuel vapor leak from an opening as small as 1.016 mm (0.04 inch) is detected by the EVAP running loss monitor test.
P0443 EVAP Control System Canister Purge Valve Circuit Malfunction The PCM monitors the EVAP canister purge valve circuit for an electrical failure. The test fails when the signal moves outside the minimum or maximum allowable calibrated parameters for a specified purge duty cycle by PCM command.
P0446 Evaporative emission control system Canister Vent (CV) solenoid control malfunction  
P0451 FTP Sensor Circuit Noisy The fuel tank pressure changes greater than 14 inches of H (2) 0 in 0.10 seconds.
P0452 FTP Sensor Circuit Low Voltage Detected The PCM monitors the EVAP control system FTP sensor input signal to the PCM. The test fails when the signal average drops below a minimum allowable calibrated Parameter.
P0453 FTP Sensor Circuit High Voltage Detected The PCM monitors the EVAP control system FTP sensor input signal to the PCM. The test fails when the signal average jumps above a minimum allowable calibrated Parameter.
P0455 EVAP Control System Leak Detected (No Purge Flow or Large Leak) The PCM monitors the complete EVAP control system for no purge flow, the Presence of a large fuel vapor leak or multiple small fuel vapor leaks. The system failure occurs when no purge flow (attributed to fuel vapor blockages or restrictions), a large fuel vapor leak or multiple fuel vapor leaks are detected by the EVAP running loss monitor test with the engine running (but not at idle).
P0456 EVAP Control System Leak Detected (Very Small Leak) The PCM monitors the complete EVAP control system for the presence of a very small fuel vapor leak. The system failure occurs when a fuel vapor leak from an opening as small as 0.508 mm (0.020 inch) is detected by the EVAP running loss monitor test.
P0457 EVAP Control System Leak Detected (Fuel Filler Cap Loose /Off) A fuel tank pressure change greater than a minus (-) 7 inches of H (2) 0 in 30 seconds has occurred after refueling; or there is excessive purge (fuel vapor) flow greater than 0.06 pounds per minute.
P0460 Fuel Level Sensor Circuit Malfunction The PCM monitors the fuel level input (FLI) circuit for electrical failure. The test fails when the signal moves outside the minimum or maximum allowable calibrated parameters for a specified fuel fill percentage in the fuel tank.
P0500 Vehicle Speed Sensor (VSS) Malfunction Indicates the powertrain control module (PCM) detected an error in the vehicle speed information. Vehicle speed data is received from either the vehicle speed sensor (VSS), transfer case speed sensor (TCSS), anti-lock brake system (ABS) control module, generic electronic module (GEM), or central timer module (CTM). If the engine rpm is above the torque converter stall speed (automatic transmission) and engine load is high, it can be inferred that the vehicle must be moving. If there is insufficient vehicle speed data input, a malfunction is indicated and a DTC is set. On most vehicle applications the malfunction indicator lamp (MIL) will be triggered when this DTC is set.
P0500 Vehicle Speed Sensor (VSS) Malfunction (MIL FAULT) Indicates the powertrain control module (PCM) detected an error in the vehicle speed information. Vehicle speed data is received from either the vehicle speed sensor (VSS), anti-lock brake system (ABS) control module, generic electronic module (GEM), or central timer module (CTM).
P0501 Vehicle Speed Sensor (VSS) Range/ Performance Indicates the powertrain control module (PCM) detected an error in the vehicle speed information. This DTC is set the same way as P0500, however the malfunction indicator lamp (MIL) is not triggered.
P0501 Vehicle Speed Sensor (VSS) Range/ Performance (NON-MIL FAULT) Indicates the powertrain control module (PCM) detected an error in the vehicle speed information. Vehicle speed data is received from either the vehicle speed sensor (VSS), anti-lock brake system (ABS) control module, generic electronic module (GEM), or central timer module (CTM). This DTC is set the same way as P0500, however the MIL is not triggered.
P0503 Vehicle Speed Sensor (VSS) Intermittent Indicates poor or noisy VSS performance. Vehicle speed data is received from either the vehicle speed sensor (VSS), transfer case speed sensor (TCSS), anti-lock brake system (ABS) control module, generic electronic module (GEM), or central timer module (CTM).
P0503 Vehicle Speed Sensor (VSS) Intermittent Indicates poor or noisy VSS performance.
P0505 Idle Air Control System Malfunction The PCM attempts to control engine speed during KOER self-test. The test fails when the desired rpm could not be reached or controlled during the self-test.
P0552 Power Steering Pressure (PSP) Sensor Circuit Malfunction (low input) The PSP sensor input signal to the PCM is continuously monitored.The test fails when the signal is open or shorted to ground.
P0553 Power Steering Pressure (PSP) Sensor Circuit Malfunction (high input) The PSP sensor input signal to PCM is continuously monitored. The test fails when the signal is shorted to power.
P0602 Control Module Programming Error This Diagnostic Trouble Code (DTC) indicates programming error within Vehicle ID block (VID).
P0603 Powertrain Control Module KAM Test Error Indicates the PCM has experienced an internal memory fault. However there are external items that can cause this DTC.
P0605 Powertrain Control Module ROM Test Error Indicates the PCM has experienced an internal memory fault.
P0703 Brake Switch Circuit Input Malfunction Indicates PCM did not receive a brake pedal position (BPP) input.
P0704 Clutch Pedal Position Switch Malfunction When the clutch pedal is depressed the voltage goes to low. If the PCM does not see this change from high to low the DTC is set.
P0707 Transmission Range (TR) sensor circuit low input  
P0708 Transmission Range (TR) sensor circuit high input  
P0712 Transmission Fluid Temperature (TFT) sensor circuit low input  
P0713 Transmission Fluid Temperature (TFT) sensor circuit high input  
P0715 Turbine Shaft Speed (TSS) sensor circuit malfunction  
P0720 Insufficient input from Output Shaft Speed sensor The output shaft speed sensor inputs a signal to the PCM, based on the speed of the output shaft of the transmission. The PCM compares this signal with the signal of the VSS or TCSS and determines correct tire size and axle gear ratio.
P0721 Noise interference on Output Shaft Speed sensor signal The output shaft speed sensor signal is very sensitive to noise. This noise distorts the input to the PCM.
P0722 No signal from Output Shaft Speed sensor The output shaft speed sensor failed to provide a signal to the PCM upon initial movement of vehicle.
P0723 Output Shaft Speed sensor circuit intermittent failure The output shaft speed sensor signal to the PCM is irregular or interrupted.
P0731 Incorrect ratio for first gear  
P0732 Incorrect ratio for second gear  
P0733 Incorrect ratio for third gear  
P0734 Incorrect ratio for fourth gear  
P0736 Incorrect ratio for reverse gear  
P0741 Torque Converter Clutch (TCC) mechanical system performance  
P0743 Torque Converter Clutch (TCC) electrical system performance  
P0746 Electronic Pressure Control (EPC) solenoid performance  
P0750 Shift Solenoid # 1 (SS1) circuit malfunction  
P0751 Shift Solenoid # 1 (SS1) performance  
P0755 Shift Solenoid # 2 (SS1) circuit malfunction  
P0756 Shift Solenoid # 2 (SS1) performance  
P0760 Shift Solenoid # 3 (SS1) circuit malfunction  
P0761 Shift Solenoid # 3 (SS1) performance  
P0781 1 -> 2 shift error  
P0782 2 -> 3 shift error  
P0783 3 -> 4 shift error  
P0784 4 -> 5 shift error  
P0812 Reverse Switch (RS) input circuit malfunction The DTC indicates that the voltage is high when it should be low.
P1000 OBD II Monitor Testing not complete The on board diagnostic II (OBD II) monitors are performed during the OBD II Drive Cycle. The DTC will be stored in continuous memory if any of the OBD II monitors do not complete.
P1001 KOER Not Able To Complete, KOER Aborted This Non-MIL (Malfunction Indicator Lamp) code will be set when Key On Engine Running (KOER) Self -Test does not complete in the time intended.
P1100 Mass Air Flow (MAF) Sensor Intermittent The MAF sensor circuit is monitored by the PCM for sudden voltage (or air flow) input change through the comprehensive component monitor (CCM). If during the last 40 warm-up cycles in key ON engine running the PCM detects a voltage (or air flow) change beyond the minimum or maximum calibrated limit, a continuous memory diagnostic trouble code (DTC) is stored.
P1101 Mass Air Flow (MAF) Sensor Out of Self-Test Range The MAF sensor circuit is monitored by the PCM for an out of range air flow (or voltage) input. If during key ON engine OFF the air flow (or voltage) reading is greater than (grams /second equivalent chart in pinpoint test DC [0.27 volt]), the test fails. Likewise, if during key ON engine running an air flow (or voltage) reading is not within (gram/second equivalent chart in pinpoint test DC [0.46 volt to 2.44 volts]), the test fails.
P1109 Intake Air Temperature 2 Sensor Intermittent Indicates IAT2 circuit became intermittently open or shorted while engine was running.
P1112 Intake Air Temperature (IAT) Sensor Intermittent Indicates IAT sensor signal was intermittent during the comprehensive component monitor.
P1114 Intake Air Temperature 2 Circuit Low Input Indicates the sensor signal is less than Self-Test minimum. The IAT2 sensor minimum is 0.2 volts.
P1115 Intake Air Temperature 2 Circuit High Input Indicates the sensor signal is greater than Self-Test maximum. The IAT2 sensor maximum is 4.6 volts.
P1116 Engine Coolant Temperature (ECT) Sensor Out of Self -Test Range Indicates the ECT sensor is out of Self -Test range. Correct range is 0.3 to 3.7 volts.
P1117 Engine Coolant Temperature (ECT) Sensor Intermittent Indicates ECT circuit became intermittently open or shorted while engine was running.
P1120 Throttle Position (TP) Sensor Out of Range Low (RATCH too Low) The TP sensor circuit is monitored by the PCM for a low TP rotation angle (or voltage) input below the closed throttle position through the comprehensive component monitor (CCM). If during key ON engine OFF or key ON engine running the TP rotation angle (or voltage) remains within the calibrated self-test range but falls between 3.42 and 9.85% (0.17 and 0.49 volt), the test fails.
P1121 Throttle Position (TP) Sensor Inconsistent with MAF Sensor The PCM monitors a vehicle operation rationality check by comparing sensed throttle position to mass air flow readings. If during key ON engine running self-test the comparison of the TP sensor and MAF sensor readings are not consistent with calibrated load values , the test fails and a diagnostic trouble code is stored in continuous memory.
P1124 Throttle Position (TP) Sensor Out of Self-Test Range The TP sensor circuit is monitored by the PCM for an out of range TP rotation angle (or voltage) input. If during key ON engine OFF or key ON engine running the TP rotation angle (or voltage) reading is less than 13.27% (0.66 volt) or greater than 23.52% (1.17 volts), the test fails.
P1125 Throttle Position (TP) Sensor Intermittent The TP sensor circuit is monitored by the PCM for sudden TP rotation angle (or voltage) input change through the comprehensive component monitor (CCM). If during the last 80 warm-up cycles in key ON engine running the PCM detects a TP rotation angle (or voltage) changes beyond the minimum or maximum calibrated limit, a continuous diagnostic trouble code (DTC) is stored.
P1127 Exhaust Not Warm Enough, Downstream Sensor Not Tested The HEGO monitor uses an exhaust temperature model to determine when the HO2S heaters are cycled ON. The test fails when the inferred exhaust temperature is below a minimum calibrated value.
P1128 Upstream Oxygen Sensors Swapped from Bank to Bank (HO2S-11-21) The HEGO monitor checks and determines if the HO2S signal response for a fuel shift corresponds to the correct engine bank. The test fails when a response from the HO2S(s) being tested is not indicated.
P1129 Downstream Oxygen Sensors Swapped from Bank to Bank (HO2S-12-22) The HEGO monitor checks and determines if the HO2S signal response for a fuel shift corresponds to the correct engine bank. The test fails when a response from the HO2S(s) being tested is not indicated.
P1130 Lack of HO2S -11 Switch, Fuel Trim at Limit The HEGO Sensor is monitored for switching. The test fails when the HO2S fails to switch due to circuit or fuel at or exceeding a calibrated limit.
P1131 Lack of HO2S -11 Switch, Sensor Indicates Lean A HEGO sensor indicating lean at the end of a test is trying to correct for an over-rich condition. The test fails when the fuel control system no longer detects switching for a calibrated amount of time.
P1132 Lack of HO2S -11 Switch, Sensor Indicates Rich A HEGO sensor indicating rich at the end of a test is trying to correct for an over-lean condition. The test fails when the fuel control system no longer detects switching for a calibrated amount of time.
P1137 Lack of HO2S -12 Switch, Sensor Indicates Lean The downstream HO2S sensors are forced rich and lean and monitored by the PCM. The test fails if the PCM does not detect the output of the HO2S in a calibrated amount of time.
P1138 Lack of HO2S -12 Switch, Sensor Indicates Rich See DTC P1137.
P1150 Lack of HO2S -21 Switch, Fuel Trim at Limit See DTC P1130.
P1151 Lack of HO2S -21 Switch, Sensor Indicates Lean A HEGO sensor indicating lean at the end of a test is trying to correct for an over-rich condition. The test fails when fuel control system no longer detects switching for a calibrated amount of time.
P1152 Lack of HO2S -21 Switch, Sensor Indicates Rich A HEGO sensor indicating rich at the end of a test is trying to correct for an over-lean condition. The test fails when the fuel control system no longer detects switching for a calibrated amount of time.
P1157 Lack of HO2S -22 Switch, Sensor Indicates Lean See DTC P1137.
P1158 Lack of HO2S -22 Switch, Sensor Indicates Rich See DTC P1137.
P1168 Fuel Rail Pressure Sensor in Range But Low The comprehensive component monitor (CCM) monitors the FRP pressure for acceptable fuel pressure. The test fails when the fuel pressure falls below a calibrated value.
P1169 Fuel Rail Pressure (FRP) Sensor in Range But High The comprehensive component monitor (CCM) monitors the FRP pressure for acceptable fuel pressure. The test fails when the fuel pressure falls below or exceeds a minimum /maximum calibrated value for a calibrated period of time.
P1180 Fuel Delivery System (Low) The PCM receives fuel tank pressure (FTP) information from the natural gas module (NG), which uses the information to infer fuel rail pressure (FRP). The test fails when the inferred pressure is less than a minimum calibrated value.
P1181 Fuel Delivery System (High) The PCM receives fuel tank pressure (FTP) information from the natural gas module (NG), which uses the information to infer fuel rail pressure (FRP). The test fails when the inferred pressure is higher than a maximum calibrated value.
P1183 Engine Oil Temperature (EOT) Sensor Circuit Malfunction Indicates EOT circuit became intermittently open or shorted while engine was running.
P1184 Engine Oil Temperature (EOT) Sensor Out of Self -Test Range Indicates EOT signal was out of Self-Test range. Correct range for KOER is.3-1.2 volts.
P1220 Series Throttle Control system malfunction  
P1224 Throttle Position Sensor B (TP-B) out of Self- Test range  
P1229 Supercharger Intercooler Pump (ICP) Pump Not Operating The ICP DTC will be set when the PCM is calling for the pump to be operating but no current is being detected.
P1232 Low Speed Fuel Pump Primary Circuit Malfunction Monitors the low speed fuel pump (LFP) primary circuit output from the PCM. The test fails if: When the LFP circuit is commanded on (grounded), excessive current draw is detected on the LFP circuit; or when the LFP circuit is commanded off, voltage is not detected on the LFP circuit (the PCM expects to detect VPWR voltage coming through the low speed fuel pump relay coil to the LFP circuit).
P1233 Fuel System Disabled or Offline Note: For LS6/LS8, P1233 indicates the PCM is not receiving the fuel level information on SCP from the rear electronics module (REM). Refer to the Workshop Manual Section 413-01 for diagnostics. Monitors the fuel pump monitor (FPM) circuit from the fuel pump driver module (FPDM). With the key on, the FPDM continuously sends a duty cycle signal to the PCM through the FPM circuit. The test fails if the PCM stops receiving the duty cycle signal.
P1234 Fuel System Disabled or Offline See DTC P1233. P1234 is identical to P1233 except P1234 will not illuminate the MIL.
P1235 Fuel Pump Control Out Of Range Note: For LS6/LS8, the FPDM functions are incorporated in the Rear Electronics Module (REM). Also, the REM does not use a FPM circuit. Diagnostic information will be sent through SCP. Indicates that the FPDM has detected an invalid or missing FP circuit signal from the PCM. The FPDM will send a message to the PCM through the FPM circuit, indicating that this failure has been detected. The PCM will set the DTC when the message is received.
P1236 Fuel Pump Control Out Of Range See DTC P1235. P1236 is identical to P1235 except P1236 will not illuminate the MIL.
P1237 Fuel Pump Secondary Circuit Malfunction Note: For LS6/LS8, the FPDM functions are incorporated in the rear electronics module (REM). Also, the REM does not use a FPM circuit. Diagnostic information will be set through SCP. Indicates that the FPDM has detected a fuel pump secondary circuit fault. The FPDM will send a message to the PCM through the FPM circuit, indicating that this failure has been detected. The PCM will set the DTC when the message is received.
P1238 Fuel Pump Secondary Circuit Malfunction See DTC P1237. P1238 is identical to P1237 except P1238 will not illuminate the MIL.
P1244 Generator Load Input Low The PCM monitors the GLI circuit, and will set the DTC when the input is below calibrated limit for a calibrated amount of time.
P1245 Generator Load Input High The PCM monitors the GLI circuit, and will set the DTC when the input is above a calibrated limit for a calibrated amount of time.
P1246 Generator Load Input (2.0L Contour /Mystique/Cougar) The PCM monitors the GLI circuit, and will set the DTC when the input is not within a calibrated limit for a calibrated amount of time.
P1246 Generator Load Input Failed (All Others) The PCM monitors generator load from the generator /regulator in the form of frequency. The frequency range is determined by the temperature of the voltage regulator where 97% represents full load, below 6% means no load.
P1260 Theft Detected - Vehicle Immobilized Indicates that the passive anti-theft system (PATS) has determined a theft condition existed and the engine is disabled. This DTC is a good indicator to check the PATS for DTCs.
P1270 Engine RPM /Vehicle Speed Limiter Indicates the vehicle has been operated in a manner which caused the engine or vehicle to exceed a calibration limit. The engine rpm and vehicle speed are continuously monitored by the PCM. The DTC is set when the rpm or speed fall out of calibrated range. For additional information on the engine rpm/vehicle speed limiter, refer to Section 1, Electronic Engine Control (EC) System, Powertrain Control Software.
P1285 Cylinder Head Over Temperature Sensed Indicates an engine overheat condition was sensed by the cylinder head temperature sensor.
P1288 Cylinder Head Temperature (CHT) Sensor Circuit Out of Self-Test Range Indicates the CHT sensor is out of Self -Test range. Engine not at operating temperature.
P1289 Cylinder Head Temperature (CHT) Sensor Circuit High Input (PCM STRATEGIES UP TO AND INCLUDING 1998) Indicates a CHT sensor circuit malfunction (shorted).
P1289 Cylinder Head Temperature (CHT) Sensor Circuit High Input (PCM STRATEGIES 1999 AND BEYOND) Indicates a CHT sensor circuit malfunction (open).
P1290 Cylinder Head Temperature (CHT) Sensor Circuit Low Input (PCM STRATEGIES UP TO AND INCLUDING 1998) Indicates a CHT sensor circuit malfunction (open).
P1290 Cylinder Head Temperature (CHT) Sensor Circuit Low Input (PCM STRATEGIES 1999 AND BEYOND) Indicates a CHT sensor circuit malfunction (shorted).
P1299 Cylinder Head Over Temperature Protection Active Indicates an engine overheat condition was detected by the cylinder head temperature (CHT) sensor. An FMEM Strategy called Fail -safe Cooling was activated to cool the engine.
P1309 Misfire Monitor Disabled When the misfire monitor is disabled, usually due to the input signal generated by the camshaft position (CMP) sensor, by sensing the passage of teeth from the CMP wheel.
P1351 Ignition Diagnostic Monitor (IDM) circuit input malfunction  
P1356 PIPs occurred while IDM pulsewidth indicates engine not turning  
P1357 Ignition Diagnostic Monitor (IDM) pulsewidth not defined  
P1358 Ignition Diagnostic Monitor (IDM) signal out of Self- Test range  
P1359 Spark output circuit malfunction  
P1380 Variable Cam Timing Solenoid A Circuit Malfunction The comprehensive component monitor(CCM) monitors the VCT circuit to the PCM for high and low voltage. If during testing voltage was to fall below a calibrated limit a calibrated amount of time the test will fail.
P1381 Variable Cam Timing Over-advanced (Bank 1) The comprehensive component monitor (CCM) monitors the VCT position for an over -advanced camshaft timing. The test fails when the camshaft timing exceeds a maximum calibrated value or remains in an advanced position.
P1383 Variable Cam Timing Over-retarded (Bank 1) The comprehensive component monitor (CCM) monitors the VCT position for over -retarded camshaft timing. The test fails when the camshaft timing exceeds a maximum calibrated value or remains in an retarded position.
P1390 Octane Adjust (OCTADJ) The octane adjust is software activated in the powertrain control module, used to retard spark timing by three degrees. The hardware shorting bar has been removed.
P1400 DPF EGR Sensor Circuit Low Voltage Detected The EGR monitor checks the DPF (Differential Pressure Feedback) EGR sensor signal to the PCM for low voltage. The test fails when the average voltage to the PCM drops to a voltage less than the minimum calibrated value.
P1401 DPF EGR Sensor Circuit High Voltage Detected The EGR monitor checks the DPF EGR sensor signal to the PCM for high voltage. The test fails when the average voltage to the PCM goes to a voltage greater than the maximum calibrated value.
P1405 DPF EGR Sensor Upstream Hose Off or Plugged While driving, the EGR monitor commands the EGR valve closed and checks the differential pressure across the EGR orifice. The test fails when the signal from the DPF EGR sensor indicates EGR flow is in the negative direction.
P1406 DPF EGR Senso Downstream Hose Off or Plugged While driving, the EG monitor commands the EGR valve closed and checks the differential pressure across the EGR orifice. The test fails when the signal from the DPF EGR sensor continues to indicate EGR flow even after the EGR valve is commanded closed.
P1408 EGR Flow Out of Self-Test Range This test is performed during the KOER on demand self-test only. The EGR (Exhaust Gas Recirculation) system is commanded ON at a fixed engine speed. The test fails and the DTC is output when the measured EGR flow falls below the required calibrated minimum.
P1409 EGR Vacuum Regulator Solenoid Circuit Malfunction This test checks the electrical function of the EGRVR. solenoid. The test fails when the EGRVR circuit voltage is either too high or too low when compared to the expected voltage range. The EGR system must be enabled for the test to be completed.
P1411 Secondary Air Injection (AIR) system downstream flow The secondary air injection system does not detect the presence of air in the exhaust when introduced by the secondary air injection systemP1413The secondary air injection system monitor circuit is low , indicating the electrical AIR pump is off although the electrical AIR pump was commanded on by the PCM.
P1413 Secondary Air Injection system monitor circuit low voltage The secondary air injection system monitor circuit is low, indicating the electrical AIR pump is off although the electrical AIR pump was commanded on by the PCM.
P1414 Secondary Air Injection system monitor circuit high voltage The secondary air injection system monitor circuit is high, indicating the electrical AIR pump is on although the electrical AIR pump was commanded off by the PCM.
P1442 Evaporative emission control system small leak detected  
P1443 Very Small Or No Purge Flow Condition (mid-year 4.0L SOHC Explorer only) A fuel tank pressure change greater than a minus (-) 7 inches of H (2) O in 30 seconds has occurred with purge (fuel vapor) flow less than 0.02 pounds per minute.
P1443 Evaporative emission control system - vacuum system. purge control solenoid or vapor management valve malfunction  
P1444 Purge Flow (PF) Sensor circuit low input  
P1445 Purge Flow (PF) Sensor circuit high input  
P1449 Evaporative emission control system unable to hold vacuum (Probe)  
P1450 Unable to Bleed Up Fuel Tank Vacuum Monitors the fuel vapor vacuum and pressure in the fuel tank. The system failure occurs when the EVAP running loss monitor detects excessive fuel tank vacuum with the engine running (but not at idle).
P1451 EVAP Control System Canister Vent Solenoid Circuit Malfunction Monitors the canister vent (CV) solenoid circuit for an electrical failure. The test fails when the signal moves outside the minimum or maximum allowable calibrated parameters for a specified canister vent duty cycle by PCM command.
P1452 Unable to bleed up fuel tank vacuum  
P1455 Evaporative emission control system control leak detected (gross leak)  
P1460 Wide Open Throttle A/C Cutout Primary Circuit Malfunction NOTE: For applications that use a normally open relay to control the A/C clutch, the following description applies to the A/C clutch relay control circuit. Monitors the wide open throttle A/C cutoff (WAC) circuit output from the PCM. The test fails if: When the PCM grounds the WAC circuit, excessive current draw is detected on the WAC circuit; or with the WAC circuit not grounded by the PCM, voltage is not detected on the WAC circuit (the PCM expects to detect VPWR voltage coming through the WAC relay coil to the WAC circuit).
P1461 Air Conditioning Pressure Sensor (ACP) Sensor High Voltage Detected ACP inputs a voltage to the PCM. If the voltage is above a calibrated level the DTC will set.
P1462 Air Conditioning Pressure Sensor (ACP) Sensor Low Voltage Detected ACP inputs a voltage to the PCM. If the voltage is below the calibrated level the DTC will set.
P1463 Air Conditioning Pressure Sensor (ACP) Insufficient Pressure Change Each time the A/C clutch engages, the PCM is looking for a pressure change in the refrigerant. If the change in pressure is outside of the calibration the DTC will set.
P1464 A/C Demand Out Of Self-Test Range Indicates the ACCS input to the PCM was high during Self-Test.
P1469 Low A/C Cycling Period Indicates frequent A/C compressor clutch cycling.
P1473 Fan secondary high with fan(s) off  
P1474 Low Fan Control Primary Circuit Failure Monitors the low fan control (LFC) (fan control [FC] for one speed fan application) primary circuit output from the PCM. The test fails if: When the PCM grounds the LFC/FC circuit, excessive current draw is detected on the LFC/FC circuit; or with the LFC/FC circuit not grounded by the PCM, voltage is not detected on the LFC/FC circuit (the PCM expects to detect VPWR voltage coming through the low speed fan relay [or CCRM] coil to the LFC/FC circuit).
P1474 Hydraulic Cooling Fan Primary Circuit Failure (HCF) This test checks the electrical function of the (HCF) primary circuit. The test fails if: the PCM detects voltage either too high or too low when compared to the expected voltage range on the (HCF) primary circuit.
P1479 High Fan Control Primary Circuit Failure Monitors the high fan control (HFC) primary circuit output from the PCM. The test fails if: With the HFC output commanded on (grounded), excessive current draw is detected on the HFC circuit; or with the HFC circuit commanded off, voltage is not detected on the HFC circuit (the PCM expects to detect VPWR voltage coming through the high speed fan relay [or CCRM] coil to the HFC circuit).
P1480 Fan secondary low with low fan on  
P1481 Fan secondary low with high fan on  
P1483 Power to fan circuit overcurrent  
P1484 Open power ground to Variable Load Control Module (VLCM)  
P1500 Vehicle Speed Sensor (VSS) Intermittent Indicates the VSS input signal was intermittent. This DTC is set when a VSS fault interferes with other OBDII tests, such as Catalyst efficiency monitor, EVAP monitor, HO2S monitor, etc.
P1501 Vehicle Speed Sensor (VSS) Out of Self Test Range Indicates the VSS input signal is out of Self Test range. If the PCM detects a VSS input signal any time during Self Test, a DTC P1501 will be set and the test will abort.
P1502 Vehicle Speed Sensor (VSS) Intermittent Indicates the powertrain control module (PCM) detected an error in the vehicle speed information. Vehicle speed data is received from either the vehicle speed sensor (VSS), transfer case speed sensor (TCSS), anti-lock brake system (ABS) control module, generic electronic module (GEM), or central timer module (CTM). This DTC is set the same way as P0500. However, it is intended to flash the transmission control indicator lamp (TCIL) for first time VSS circuit error /malfunctions.
P1502 Vehicle Speed Sensor (VSS) Intermittent (TCIL illuminates) Indicates the powertrain control module (PCM) detected an error in the vehicle speed information. Vehicle speed data is received from either the vehicle speed sensor (VSS), anti-lock brake system (ABS) control module, generic electronic module (GEM), or central timer module (CTM). This DTC is set the same way as P0500 However, it is intended to flash the transmission control indicator lamp(TCIL) for first time VSS circuit error /malfunctions.
P1504 Idle Air Control (IAC) Circuit Malfunction This DTC is set when the PCM detects an electrical load failure on the IAC output circuit.
P1504 Idle Air Control (IAC) System At Adaptive Clip  
P1506 Idle Air Control (IAC) Overspeed Error This DTC is set when the PCM detects engine idle speed that is greater than the desired rpm.
P1507 Idle Air Control (IAC) Underspeed Error This DTC is set when the PCM detects engine idle speed that is less than the desired rpm.
P1512 Intake Manifold Runner Control (IMRC) malfunction (Bank 1 stuck closed)  
P1513 Intake Manifold Runner Control (IMRC) malfunction (Bank 2 stuck closed)  
P1516 Intake Manifold Runner Control Input Error (Bank 1)  
P1517 Intake Manifold Runner Control Input Error (Bank 2) The IMRC system is monitored for failure during continuous or key ON engine OFF self -test. Each DTC will distinguish the corresponding failed bank for IMRC actuator assemblies with dual monitor switches. The test fails when the signal on the monitor pin is outside an expected calibrated range.
P1518 Intake Manifold Runner Control Malfunction (Stuck Open) The IMRC system is monitored for failure during continuous, key ON engine OFF or key ON engine running self -test. The test fails when the signal on the monitor Pin is less than an expected calibrated range at closed throttle.
P1519 Inlet Manifold Runner Control Malfunction (Stuck Closed) The IMRC system is monitored for failure during continuous, key ON engine OFF or key ON engine running self -test. The test fails when the signal on the monitor Pin is more than an expected calibrated range with IMRC activated.
P1520 Intake Manifold Runner Control (IMRC) circuit malfunction  
P1530 Air Condition (A/C) clutch circuit malfunction  
P1537 Intake Manifold Runner Control (IMRC) malfunction (Bank 1 stuck open)  
P1538 Intake Manifold Runner Control (IMRC) malfunction (Bank 2 stuck open)  
P1539 Power to Air Condition (A / C) clutch circuit overcurrent  
P1549 Intake Manifold Communication Control Circuit Malfunction The IMCC or intake manifold tuning (IMT) valve system is monitored for failure during continuous or key ON engine OFF self -test. The test fails when the PCM detects a concern with IMT valve output circuit.
P1550 Power Steering Pressure (PSP) Sensor Malfunction The PSP sensor input signal to PCM is continuously monitored. The test fails when the signal falls out of a maximum or minimum calibrated range.
P1605 Keep Alive Memory Test Failure Indicates the PCM has experienced an internal memory test failure. However there are external items that can cause this DTC.
P1625 B(+) supply to Variable Load Control Module (VLCM) fan circuit malfunction  
P1626 B(+) supply to Variable Load Control Module (VLCM) Air Condition (A / C) circuit malfunction  
P1633 Keep Alive Power Voltage Too Low Indicates that the Keep Alive Power (KAPWR) circuit has experienced a power interrupt.
P1635 Tire/Axle Ratio Out Of Acceptable Range This Diagnostic Trouble Code (DTC) indicates the tire and axle information contained in Vehicle ID block (VID) does not match vehicle hardware.
P1640 Powertrain DTC's Available in Another Module Vehicles using a secondary Engine Control Module can request that the Powertrain Control Module illuminate the Check Engine Light when a failure occurs which affect emission.
P1650 Power Steering Pressure (PSP) Switch Malfunction In Key On, Engine Off Self-Test, this DTC indicates the PSP input to the PCM is high. In Key On, Engine Running Self -Test, this DTC indicates that the PSP input did not change state.
P1651 Power Steering Pressure (PSP) Switch Signal Malfunction The PCM counts the number of times vehicle speed transitions from 0 to a calibratable speed. After a calibratable number of speed transitions the PCM expects that the PSP input should have changed. This DTC is set if the transition is not detected.
P1703 Brake Switch Out of Self-Test Range Indicates that during Key On Engine Off (KOEO) Self-Test, BPP signal was high. Or during Key On Engine Running (KOER) Self -Test, the BPP signal did not cycle high and low.
P1705 Transmission Range Sensor Out of Self-Test Range  
P1709 Park/Neutral Position Switch Out of Self-Test Range The DTCs indicate that the voltage is high when it should be low.
P1711 Transmission Fluid Temperature (TFT) sensor out of Self- Test range  
P1728 Transmission Slip Fault  
P1729 4x4L Switch Malfunction The 4x4L switch is an ON/OFF. If the PCM does not see low voltage when the switch is ON a DTC will set.
P1741 Torque Converter Clutch (TCC) control error  
P1742 Torque Converter Clutch (TCC) solenoid failed on (turns on MIL)  
P1743 Torque Converter Clutch (TCC) solenoid failed on (turns on TCIL)  
P1744 Torque Converter Clutch (TCC) system mechanically stuck in off position  
P1746 Electronic Pressure Control (EPC) solenoid open circuit (low input)  
P1747 Electronic Pressure Control (EPC) solenoid short circuit (high input)  
P1749 Electronic Pressure Control (EPC) solenoid failed low  
P1751 Shift Solenoid # 1 (SS 1) performance  
P1754 Coast Clutch Solenoid (CCS) circuit malfunction  
P1756 Shift Solenoid # 2 (SS2) performance  
P1761 Shift Solenoid # 3 (SS3) performance  
P1780 Transmission Control Switch Out of Self-Test Range During KOER self-test the TCS has to be cycled, if not cycled a DTC is set.
P1781 4x4L Switch Out of Self-Test Range The 4x4L switch is an ON/OFF. If the PCM does not see low voltage when the switch is on a DTC will set.
P1783 Transmission overtemperature condition  
P1788 3-2 Timing / Coast Clutch Solenoid (3-2/ CCS) circuit open  
P1789 3-2 Timing / Coast Clutch Solenoid (3-2/ CCS) circuit shortened  
P1900 Output Shaft Speed sensor circuit intermittent failure See DTC P0723.
U1021 SCP indicating the lack of Air Condition (A / C) clutch status response  
U1039 SCP indicating the vehicle speed signal missing or incorrect .  
U1051 SCP indicating the brake switch signal missing or incorrect  
U1073 SCP indicating the lack of engine coolant fan status response  
U1131 SCP indicating the lack of Fuel Pump status response  
U1135 SCP indicating the ignition switch signal missing or incorrect  
U1256 SCP indicating a communications error  
U1451 Lack of response from Passive Anti- Theft system (PATS) module - engine disabled  
B1342 ECU is defective  
C1095 ABS Hydraulic Pump Motor Circuit Failure  
C1096 ABS Hydraulic Pump Motor Circuit Open  
C1103 Hydraulic Brake Pressure Switch Circuit Failure  
C1104 TAAC Active Lamp-Circuit Short to Battery  
C1105 TRAC OFF Lamp-Circuit Short to Battery  
C1113 ABS Power Relay Coil Short Circuit to Battery  
C1115 ABS Power Relay Output Short Circuit to Battery  
C1140 Lamp Brake Warning Output Circuit Short to Ground  
C1141 Wheel Speed Sensor LF front brake anti-Iock sensor indicator: Tooth Missing Fault  
C1142 Wheel Speed Sensor RF front brake anti-Iock sensor indicator: Tooth Missing Fault  
C1143 Wheel Speed Sensor LR front brake anti-Iock sensor indicator: Tooth Missing Fault  
C1144 Wheel Speed Sensor RA front brake anti-Iock sensor indicator: Tooth Missing Fault  
C1145 Speed Wheel Sensor RF Input Circuit Failure  
C1148 Speed Wheel Sensor RF Coherency Fault  
C1155 Speed Wheel Sensor LF Input Circuit Failure  
C1158 Speed Wheel Sensor LF Coherency Fault  
C1165 Speed Wheel Sensor RR Input Circuit Failure  
C1168 Speed Wheel Sensor RR Coherency Fault  
C1175 Speed Wheel Sensor LA Input Circuit Failure  
C1178 Speed Wheel Sensor LR Coherency Fault  
C1184 ABS System is Not Operational  
C1185 ASS Power Relay Output Circuit Failure  
C1194 ABS Dump Valve Coil LF Circuit Failure  
C1198 ABS Dump Valve Coil LF Circuit Short to Battery  
C1198 ABS Isolation Valve Coil LF Circuit Failure  
C1200 ABS Isolation Valve Coil LF Circuit Short to Battery  
C1210 ABS Dump Valve Coil AF Circuit Failure  
C1212 ABS Dump Valve Coil RF Circuit Short to Battery  
C1214 ABS Isolation Valve Coil AF Circuit Failure  
C1216 ABS Isolation Valve Coil RF Circuit Short to Battery  
C1220 Lamp ABS Warning Output Circuit Short to Battery  
C1222 Speed Wheel Mismatch  
C1225 Lamp Brake Warning Output Circuit Short to Battery  
C1226 Lamp Brake Warning Output Circuit Short to Ground  
C1233 Speed Wheel LF Input Signal Missing  
C1234 Speed Wheel RF Input Signal Missing  
C1235 Speed Wheel RR Input Signal Missing  
C1236 Speed Wheel LA Input Signal Missing  
C1242 ABS Dump Valve Coil LR Circuit Failure  
C1244 ABS Dump Valve Coil LR Circuit Short to Battery  
C1246 ABS Dump Valve Coil RR Circuit Failure  
C1248 ABS Dump Valve Coil RR Circuit Short to Battery  
C1250 ABS Isolation Valve Coil LR Circuit Failure  
C1252 ABS Isolation Valve Coil LA Circuit Short to Battery  
C1254 ABS Isolation Valve Coil RR Circuit Failure  
C1256 ABS Isolation Valve Coil RR Circuit Short to Battery  
C1265 Lamp Warning Relay Circuit Short to Ground  
C1446 Brake Switch Circuit Failure  
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