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Diagnostic Trouble Code Numbers

DIAGNOSTIC TROUBLE CODE NUMBERS

NO. DIAGNOSED CIRCUIT CONDITION ACTION
P0102 Mass Air Flow Sensor (MAF) MAF signal went below 0.39 volts sometime during normal engine operation or KOER Self Test. See MASS AIR FLOW (MAF) SENSOR  .
P0103 Mass Air Flow Sensor (MAF) MAF signal went above 3.90 volts during KOEO or KOER Self Test. See MASS AIR FLOW (MAF) SENSOR  .
P0112 Intake Air Temperature (IAT) Sensor
  • IAT signal is less than 0.2 volt (250°F {121°C}).
  • IAT signal was not received during KOEO/KOER Self Test, but was output during Retrieve/Clear Continuous DTC Self Test.
 See INTAKE AIR TEMPERATURE (IAT) SENSOR AND ENGINE COOLANT TEMPERATURE (ECT) SENSOR  .
P0113 Intake Air Temperature (IAT) Sensor
  • IAT signal is greater than 4.6 volts (-46° F/-50° C)
  • IAT signal not received during KOEO/KOER Self Test, but was output during Retrieve/Clear Continuous DTC Self Test.
 See INTAKE AIR TEMPERATURE (IAT) SENSOR AND ENGINE COOLANT TEMPERATURE (ECT) SENSOR  .
P0117 Engine Coolant Temperature (ECT) Sensor
  • ECT signal is less than 0.2 volt (250°F/121°C).
  • ECT signal was not received during KOEO/KOER Self Test, but was output during Retrieve/Clear Continuous DTC Self Test.
 See INTAKE AIR TEMPERATURE (IAT) SENSOR AND ENGINE COOLANT TEMPERATURE (ECT) SENSOR  .
P0118 Engine Coolant Temperature (ECT) Sensor ECT signal is greater than 4.6 volts (-46°F/-50°C). ECT signal was not received during KOEO/KOER Self Test, but was output during Retrieve/Clear Continuous DTC Self Test. See INTAKE AIR TEMPERATURE (IAT) SENSOR AND ENGINE COOLANT TEMPERATURE (ECT) SENSOR  .
P0121 Throttle Position (TP) Sensor TP signal is an in-range operating TP sensor failure See THROTTLE POSITION (TP) SENSOR CIRCUIT MALFUNCTION  .
P0122 Throttle Position (TP) Sensor TP signal is less than Self Test minimum of 0.17 volt (3.43%) See THROTTLE POSITION (TP) SENSOR CIRCUIT MALFUNCTION  .
P0123 Throttle Position (TP) Sensor TP signal is greater than Self Test maximum of 4.6 volts (92.27%) See THROTTLE POSITION (TP) SENSOR CIRCUIT MALFUNCTION  .
P0125 Engine Coolant (ECT) Temperature Sensor ECT signal has not achieved requires temperature level to enter closed loop operating conditions within a specified amount of time after starting engine. See INTAKE AIR TEMPERATURE (IAT) SENSOR AND ENGINE COOLANT TEMPERATURE (ECT) SENSOR  .
P0131 Heated Oxygen Sensor (HO2S)-11 HO2S-11 generates a negative voltage. See HEATED OXYGEN SENSOR (HO2S)  .
P0133 Heated Oxygen Sensor (HO2S)-11 Response rate of HO2S-11 is below calibrated window See UPSTREAM HEATED OXYGEN SENSORS (HO2S)  .
P0135 HO2S HTR 11 HO2S-11 heater circuit has a short to ground, open or short to VPWR. See HEATED OXYGEN SENSOR (HO2S) HEATER CIRCUIT  .
P0136 Heated Oxygen Sensor (HO2S)-12 HO2S-12 output voltage is less than calibrated function window. Any exhaust leaks between engine and end of catalyst may cause this DTC. See HEATED OXYGEN SENSOR (HO2S)  .
P0141 HO2S HTR 12 HO2S-12 heater has a short to ground, open or short to VPWR. See HEATED OXYGEN SENSOR (HO2S) HEATER CIRCUIT  .
P0151 Heated Oxygen Sensor (HO2S)-21 HO2S-21 generates a negative voltage. See HEATED OXYGEN SENSOR (HO2S)  .
P0153 Heated Oxygen Sensor (HO2S)-21 Response rate of HO2S-21 is below calibrated window. See UPSTREAM HEATED OXYGEN SENSORS (HO2S)  .
P0155 HO2S HTR-21 HO2S-21 heater circuit has a short to ground, open or a short to VPWR. See HEATED OXYGEN SENSOR (HO2S) HEATER CIRCUIT  .
P0156 Heated Oxygen Sensor (HO2S)-22 HO2S-22 output voltage is less than calibrated function window. Any exhaust leaks between engine and the end of catalyst may cause this DTC. See HEATED OXYGEN SENSOR (HO2S)  HEATED OXYGEN SENSOR (HO2S) .
P0171 Adaptive Fuel Control Fuel adaptive system is a rich correction limit due to fuel/air ratio to lean (#1 cylinder bank). See ADAPTIVE FUEL CONTROL  .
P0172 Adaptive Fuel Control Fuel adaptive system is at lean correction limit due to fuel/air ratio too rich (#1 cylinder bank). See ADAPTIVE FUEL CONTROL  .
P0174 Adaptive Fuel Control Fuel adaptive system is at rich correction limit due to air/fuel ratio too lean (opposite bank). See ADAPTIVE FUEL CONTROL  .
P0175 Adaptive Fuel Control Fuel adaptive system is at lean correction limit due to air/fuel ratio too rich (opposite bank). See ADAPTIVE FUEL CONTROL  .
P0176 Flexible Fuel (FF) Sensor Circuit Malfunction FF Sensor circuit signal is below 40 Hz or above 160 Hz. See FLEXIBLE FUEL (FF) SENSOR  .
P0230 Fuel Pump Relay Fuel pump primary circuit failure See FUEL PUMP (FP) PRIMARY OR SECONDARY CIRCUIT  .
P0231 Fuel Pump Relay Fuel pump secondary circuit failure between B+ supply and fuel pump monitor (test pin 40) connection to power to pump circuit. See FUEL PUMP (FP) PRIMARY OR SECONDARY CIRCUIT  .
P0232 Fuel Pump Relay Fuel pump monitor circuit voltage was high when fuel pump was commanded off. See FUEL PUMP (FP) PRIMARY OR SECONDARY CIRCUIT  .
P0300 Misfire Detection Monitor Multiple cylinders misfiring, or cannot identify cylinder due to camshaft position sensor failure. See MISFIRE DETECTION MONITOR  .
P0301 Misfire Detection Monitor Cylinder #1 misfiring. See MISFIRE DETECTION MONITOR  .
P0302 Misfire Detection Monitor Cylinder #2 misfiring. See MISFIRE DETECTION MONITOR  .
P0303 Misfire Detection Monitor Cylinder #3 misfiring. See MISFIRE DETECTION MONITOR  .
P0304 Misfire Detection Monitor Cylinder #4 misfiring. See MISFIRE DETECTION MONITOR  .
P0305 Misfire Detection Monitor Cylinder #5 misfiring. See MISFIRE DETECTION MONITOR  .
P0306 Misfire Detection Monitor Cylinder #6 misfiring. See MISFIRE DETECTION MONITOR  .
P0320 Powertrain Control Module (PCM) Erratic Profile Ignition Pickup (PIP) signal. See POWERTRAIN CONTROL MODULE (PCM)  .
P0340 Camshaft Position (CMP) Sensor Self Test has detected a Camshaft Position (CMP) sensor circuit failure. See CAMSHAFT POSITION (CMP) SENSOR MALFUNCTION  .
P0350 Ignition Coil Ignition coil primary circuit malfunction. See IGNITION COIL PRIMARY CIRCUIT MALFUNCTION  .
P0351 Ignition Coil Ignition coil A primary circuit malfunction. See INTEGRATED IGNITION COIL 1, 2, 3, OR 4 FAILURE  .
P0352 Ignition Coil Ignition coil B primary circuit malfunction. See INTEGRATED IGNITION COIL 1, 2, 3, OR 4 FAILURE  .
P0353 Ignition Coil Ignition coil C primary circuit malfunction. See INTEGRATED IGNITION COIL 1, 2, 3, OR 4 FAILURE  .
P0354 Ignition Coil Ignition coil D primary circuit malfunction. See INTEGRATED IGNITION COIL 1, 2, 3, OR 4 FAILURE  .
P0401 Exhaust Gas Recirculation (EGR) System Continuous Self Test has detected insufficient EGR flow. See EGR SYSTEM MALFUNCTION  .
P0402 Exhaust Gas Recirculation (EGR) System Self Test has detected EGR flow at idle. See EGR SYSTEM MALFUNCTION  .
P0420 Catalyst Efficiency Monitor Bank 1 catalyst system efficiency is below acceptable threshold. See CATALYST EFFICIENCY MONITOR MALFUNCTION  .
P0430 Catalyst Efficiency Monitor Bank 2 catalyst system efficiency is below acceptable threshold. See CATALYST EFFICIENCY MONITOR MALFUNCTION  .
P0442 Evaporative Emission (EVAP) System A small leak has been detected in the EVAP system. See EVAPORATIVE EMISSION (EVAP) MONITOR AND SYSTEM MALFUNCTION  .
P0443 EVAP Purge Solenoid Failure in solenoid circuit. See EVAPORATIVE (EVAP) EMISSION CANISTER PURGE SOLENOID MALFUNCTION  .
P0452 Fuel Tank Pressure (FTP) Sensor Self Test has detected an FTP circuit input below minimum. See FUEL TANK PRESSURE (FTP) SENSOR MALFUNCTION  .
P0453 Fuel Tank Pressure (FTP) Sensor Self Test has detected a FTP circuit input (FTP V PID) above 4.50 volts. See FUEL TANK PRESSURE (FTP) SENSOR MALFUNCTION  .
P0455 Evaporative Emission (EVAP) System A substantial leak or blockage has been detected in the EVAP system. See EVAPORATIVE EMISSION (EVAP) SYSTEM MALFUNCTION  .
P0460 Fuel Level Input (FLI) FLI circuit malfunction due to a low or high FLI input to the PCM, or a mechanically stuck Fuel Pump (FP) module. See FUEL LEVEL INPUT (FLI) CIRCUIT MALFUNCTION  .
P0500 Vehicle Speed Signal (VSS) PCM detected loss of VSS signal during operation. See VEHICLE SPEED SIGNAL MALFUNCTION  .
P0501 Vehicle Speed Signal (VSS) PCM detected an intermittent VSS signal during operation See VEHICLE SPEED SIGNAL MALFUNCTION  .
P0503 Vehicle Speed Signal (VSS) PCM detected an intermittent VSS signal during operation See VEHICLE SPEED SENSOR (VSS) SIGNAL INTERMITTENT  .
P0505 Idle Air Control (IAC) system Self Test has detected IAC system malfunction See IDLE AIR CONTROL (IAC) VALVE ASSEMBLY MALFUNCTION  .
P0603 Powertrain Control Module (PCM) PCM has experienced a power interrupt in Keep Alive Power (KAPWR) circuit. See POWERTRAIN CONTROL MODULE (PCM) MALFUNCTION  .
P0605 Powertrain Control Module (PCM) Read Only Memory (ROM) test error. Replace PCM. See POWERTRAIN CONTROL MODULE .
P0703 Brake Pedal Position (BPP) Switch BPP signal did not cycle high and low when brake pedal was pressed and released during KOER. See BRAKE PEDAL POSITION (BPP) SWITCH MALFUNCTION  .
P0704 Clutch Pedal Position (CPP) Switch Switch is malfunctioning. See CLUTCH PEDAL POSITION (CPP) SWITCH MALFUNCTION  .
P0705 Transmission Range (TR) Sensor TR sensor circuit failure. See DTC P0705 in DTC IDENTIFICATION table in DIAGNOSIS - 4R44E article or DTC P0705 in DTC IDENTIFICATION table in DIAGNOSIS - 5R55E article in TRANSMISSION.
P0708 Transmission Range (TR) Sensor TR signal is high or open. See DTC P0708 in DTC IDENTIFICATION table in DIAGNOSIS - 4R44E article or DTC P0708 in DTC IDENTIFICATION table in DIAGNOSIS - 5R55E article in TRANSMISSION.
P0712 Transmission Fluid Temperature (TFT) Sensor TFT signal exceeds scale set for temperature of 157°C (315°F). See DTC P0712 in DTC IDENTIFICATION table in DIAGNOSIS - 4R44E article or DTC P0712 in DTC IDENTIFICATION table in DIAGNOSIS - 5R55E article in TRANSMISSION.
P0713 Transmission Fluid Temperature (TFT) Sensor TFT signal exceeds scale set for temperature of -40°C (-40°C). See DTC P0713 in DTC IDENTIFICATION table in DIAGNOSIS - 4R44E article or DTC P0713 in DTC IDENTIFICATION table in DIAGNOSIS - 5R55E article in TRANSMISSION.
P0715 Turbine Shaft Speed (TSS) Sensor PCM detected a loss of TSS signal during operation. See DTC P0715 in DTC IDENTIFICATION table in DIAGNOSIS - 4R44E article or DTC P0715 in DTC IDENTIFICATION table in DIAGNOSIS - 5R55E article in TRANSMISSION.
P0720 Output Shaft Speed (OSS) Sensor PCM detect a loss of OSS signal during operation. See DTC P0720 in DTC IDENTIFICATION table in DIAGNOSIS - 5R55E article in TRANSMISSION.
P0721 Output Shaft Speed (OSS) Sensor PCM detected an erratic OSS signal. See DTC P0721 in DTC IDENTIFICATION table in DIAGNOSIS - 5R55E article in TRANSMISSION.
P0731 AT Solenoid Gear # 1 incorrect ratio (no first gear) See DTC P0731 in DTC IDENTIFICATION table in DIAGNOSIS - 4R44E article or DTC P0731 in DTC IDENTIFICATION table in DIAGNOSIS - 5R55E article in TRANSMISSION.
P0732 AT Solenoid Gear # 2 incorrect ratio (no second gear). See DTC P0732 in DTC IDENTIFICATION table in DIAGNOSIS - 4R44E article or DTC P0732 in DTC IDENTIFICATION table in DIAGNOSIS - 5R55E article in TRANSMISSION.
P0733 AT Solenoid Gear #3 incorrect ratio (no third gear). See DTC P0733 in DTC IDENTIFICATION table in DIAGNOSIS - 4R44E article or DTC P0733 in DTC IDENTIFICATION table in DIAGNOSIS - 5R55E article in TRANSMISSION.
P0734 AT Solenoid Gear #4 incorrect ratio (no fourth gear). See DTC P0734 in DTC IDENTIFICATION table in DIAGNOSIS - 4R44E article or DTC P0734 in DTC IDENTIFICATION table in DIAGNOSIS - 5R55E article in TRANSMISSION.
P0735 AT Solenoid Gear # 5 incorrect ratio (no fifth gear). DTC P0735 in DTC IDENTIFICATION table in DIAGNOSIS - 5R55E article in TRANSMISSION.
P0743 Torque Converter Clutch (TCC) Solenoid TCC circuit fails to provide voltage drop across solenoid during on-board diagnostic. See DTC P0743 in DTC IDENTIFICATION table in DIAGNOSIS - 4R44E article in TRANSMISSION.
P0750 Shift Solenoid 1 (SS1) SS1 circuit open or shorted or PCM driver failure during on-board diagnostic. See DTC P0750 in DTC IDENTIFICATION table in DIAGNOSIS - 4R44E article or DTC P0750 in DTC IDENTIFICATION table in DIAGNOSIS - 5R55E article in TRANSMISSION.
P0751 Shift Solenoid 1 (SS1) SS1 function failure (mechanical or hydraulic failure). See DTC P0751 in DTC IDENTIFICATION table in DIAGNOSIS - 4R44E article or DTC P0751 in DTC IDENTIFICATION table in DIAGNOSIS - 5R55E article in TRANSMISSION.
P0755 Shift Solenoid 2 (SS2) SS2 circuit open or shorted or PCM driver failure during on-board diagnostic. See DTC P0755 in DTC IDENTIFICATION table in DIAGNOSIS - 4R44E article or DTC P0755 in DTC IDENTIFICATION table in DIAGNOSIS - 5R55E article in TRANSMISSION.
P0756 Shift Solenoid 2 (SS2) SS2 function failure (mechanical or hydraulic failure). See DTC P0756 in DTC IDENTIFICATION table in DIAGNOSIS - 4R44E article or DTC P0756 in DTC IDENTIFICATION table in DIAGNOSIS - 5R55E article in TRANSMISSION.
P0760  
Shift Solenoid 3 (SS3)		 SS3 circuit open or shorted or PCM driver failure during on-board diagnostic. See DTC P0760 in DTC IDENTIFICATION table in DIAGNOSIS - 4R44E article or DTC P0760 in DTC IDENTIFICATION table in DIAGNOSIS - 5R55E article in TRANSMISSION.
P0761 Shift Solenoid 3 (SS3) SS3 function failure (mechanical or hydraulic failure). See DTC P0761 in DTC IDENTIFICATION table in DIAGNOSIS - 4R44E article or DTC P0761 in DTC IDENTIFICATION table in DIAGNOSIS - 5R55E article in TRANSMISSION.
P0765 Shift Solenoid 4 (SS4) SS4 circuit open or shorted or PCM driver failure during on-board diagnostic. See DTC P0765 in DTC IDENTIFICATION table in DIAGNOSIS - 4R44E article or DTC P0765 in DTC IDENTIFICATION table in DIAGNOSIS - 5R55E article in TRANSMISSION.
P1000 OBD II Drive Cycle OBD II monitor testing not complete. See OBD II DRIVE CYCLE MALFUNCTION  .
P1001 Data Link Connector (DLC) KOER Self Test not able to complete or aborted. See DATA LINK CONNECTOR (DLC) MALFUNCTION  .
P1100 Mass Air Flow Sensor (MAF) MAF signal went below 0.39 volt or above 3.90 volts sometime during the last 40 warm-up cycles. See MASS AIR FLOW (MAF) SENSOR  .
P1101 Mass Air Flow Sensor (MAF)
  • MAF signal was greater than 0.20 volt during KOEO Self Test (outputs KOEO DTC P1101).
  • MAF signal was not between 0.34-1.96 volts during KOER Self Test (output KOER DTC 1101).
 See MASS AIR FLOW (MAF) SENSOR  .
P1112 Intake Air Temperature (IAT) Sensor IAT signal was not received during KOEO and KOER Self Test, but was output during Retrieve/Clear Continuous DTC Self Test. See INTAKE AIR TEMPERATURE (IAT) SENSOR AND ENGINE COOLANT TEMPERATURE (ECT) SENSOR  .
P1114 Intake Air Temperature (IAT) Sensor IAT signal is less than Self Test minimum of 0.2 volts (121°C [250°F]). See INTAKE AIR TEMPERATURE (IAT) SENSOR AND ENGINE COOLANT TEMPERATURE (ECT) SENSOR  .
P1115 Intake Air Temperature (IAT) Sensor IAT signal is greater than Self Test maximum of 4.6 volts (-50°C [-46°F]). See INTAKE AIR TEMPERATURE (IAT) SENSOR AND ENGINE COOLANT TEMPERATURE (ECT) SENSOR  .
P1116 Engine Coolant Temperature (ECT) Sensor ECT signal went below 0.3 volt or above 3.7 volts during KOEO or KOER Self Test. See INTAKE AIR TEMPERATURE (IAT) SENSOR AND ENGINE COOLANT TEMPERATURE (ECT) SENSOR  .
P1117 Engine Coolant Temperature (ECT) Sensor ECT signal was not received during KOEO and KOER Self Test, but was output during Retrieve/Clear Continuous DTC Self Test. See INTAKE AIR TEMPERATURE (IAT) SENSOR AND ENGINE COOLANT TEMPERATURE (ECT) SENSOR  .
P1120 Throttle Position (TP) Sensor TP signal is within Self Test range but below closed throttle position range of 0.17 to 0.49 volts (3.43 to 9.80%). See THROTTLE POSITION (TP) SENSOR CIRCUIT MALFUNCTION  .
P1121 Throttle Position (TP) Sensor TP signal inconsistent with MAF sensor signal. See THROTTLE POSITION (TP) SENSOR CIRCUIT MALFUNCTION  .
P1124 Throttle Position (TP) Sensor TP rotational setting and signal are not in Self Test range of 0.66 to 1.20 volts (13.23 to 24.02%). See THROTTLE POSITION (TP) SENSOR CIRCUIT MALFUNCTION  .
P1125 Throttle Position (TP) Sensor TP signal went below 0.49 volt (9.80%) or above 4.60 volts (92.27%) sometime during the last 80 warm-up cycles. See THROTTLE POSITION (TP) SENSOR CIRCUIT MALFUNCTION  .
P1127 Heated Oxygen Sensor (HO2S)-12 HO2S-12 heater was not on during KOER Self Test. See HO2S HEATER(S)  .
P1128 Heated Oxygen Sensor (HO2S) Upstream HO2S signal(s) are swapped from bank to bank during KOER. See HEATED OXYGEN SENSOR HO2S SIGNALS  .
P1129 Heated Oxygen Sensor (HO2S) Downstream HO2S signal(s) are swapped from bank to bank during KOER. See HEATED OXYGEN SENSOR HO2S SIGNALS  .
P1130 Heated Oxygen Sensor (HO2S)-11 Fuel control has reached its maximum compensation for lean or rich and HO2S is not switching. See FUEL SYSTEM NOT SWITCHING AT FUEL TRIM (RICH OR LEAN)  .
P1131 Heated Oxygen Sensor (HO2S)-11 Fuel/Air ratio is correcting rich for overly lean condition (HO2S voltage is less than 0.45 volts). See UPSTREAM HEATED OXYGEN SENSOR (HO2S) NOT SWITCHING  .
P1132 Heated Oxygen Sensor (HO2S)-11 Fuel/Air ratio is correcting lean for an overly rich condition (HO2S voltage is greater than 0.45 volts). See UPSTREAM HEATED OXYGEN SENSOR (HO2S) NOT SWITCHING  .
P1137 Heated Oxygen Sensor (HO2S)-12 Fuel control has reached its maximum compensation for lean or rich and HO2S is not switching. See HEATED OXYGEN SENSOR (HO2S)  .
P1138 Heated Oxygen Sensor (HO2S)-12 Fuel control has reached its maximum compensation for lean or rich and HO2S is not switching. See HEATED OXYGEN SENSOR (HO2S)  .
P1150 Heated Oxygen Sensor (HO2S)-21 Fuel control has reached its maximum compensation for rich or lean and HO2S has stopped switching. See FUEL SYSTEM NOT SWITCHING AT FUEL TRIM (RICH OR LEAN)  .
P1151 Heated Oxygen Sensor (HO2S)-21 Fuel/Air ratio is correcting rich for overly lean condition (HO2S voltage is less than 0.45 volts). See UPSTREAM HEATED OXYGEN SENSOR (HO2S) NOT SWITCHING  .
P1152 Heated Oxygen Sensor (HO2S)-21 Fuel/Air ratio is correcting lean for overly rich condition (HO2S voltage is greater than 0.45 volts). See UPSTREAM HEATED OXYGEN SENSOR (HO2S) NOT SWITCHING  .
P1260 Anti-Theft System Anti-theft system has detected a break in the onboard security test due to an attempted theft or a system hardware failure. See ANTI-THEFT SYSTEM  .
P1270 Over-revving Engine rpm, vehicle speed limit reached. See ENGINE RPM/VEHICLE SPEED LIMITER  .
P1309 Misfire Detection Monitor Misfire Detection Monitor is not enabled. See MISFIRE DETECTION MONITOR  .
P1400 Differential Pressure Feedback EGR (DPFE) Sensor Self Test has detected a DPFE SIG circuit input below minimum. See DPFE SENSOR MALFUNCTION  .
P1401 Differential Pressure Feedback EGR (DPFE) Sensor Self Test has detected a DPFE SIG circuit input above maximum. See DPFE SENSOR MALFUNCTION  .
P1405 Differential Pressure Feedback EGR (DPFE) Sensor Continuous Self Test has detected that exhaust manifold side (upstream) DPFE pressure hose is off or plugged. See DPFE SENSOR MALFUNCTION  .
P1406 Differential Pressure Feedback EGR (DPFE) Sensor Continuous Self Test has detected that exhaust manifold side (downstream) DPFE pressure hose is off or plugged. See DPFE SENSOR MALFUNCTION  .
P1408 EGR System KOER Self Test has detected EGR flow out of range. See EGR SYSTEM MALFUNCTION  .
P1409 EGR Vacuum Regulator (EVR) Solenoid
  • Self test has detected an electrical malfunction in EVR circuit.
  • Continuous DTC P1409 indicates that continuous Self Test has detected an electrical malfunction in EVR circuit sometime during vehicle operation.
 See EGR VACUUM REGULATOR CIRCUIT MALFUNCTION  .
P1443 EVAP Self Test has detected a leak or blockage between the intake manifold, the EVAP canister purge valve and EVAP canister. See EVAPORATIVE EMISSION (EVAP) MONITOR AND SYSTEM  .
P1450 EVAP Self Test has detected the EVAP system is unable to bleed up fuel tank vacuum. See EVAPORATIVE EMISSION (EVAP) MONITOR AND SYSTEM  .
P1451 Canister Vent (CV) Solenoid Self Test has detected a Canister Vent (CV) solenoid circuit failure. See CANISTER VENT (CV) SOLENOID MALFUNCTION  .
P1460 WOT A/C Cutoff (WAC) WAC circuit fault or A/C was on during Self Test. See WIDE OPEN THROTTLE A/C CUTOFF (WAC) RELAY MALFUNCTION  .
P1464 A/C Circuits (ACCS) ACCS input to PCM was high during Self Test. See A/C CONTROL SIGNAL (ACCS) MALFUNCTION  .
P1500 Vehicle Speed Signal (VSS) PCM detected an erratic VSS signal during operation See VEHICLE SPEED SENSOR (VSS) SIGNAL INTERMITTENT  .
P1501 Vehicle Speed Signal (VSS) VSS signal has been detected out of Self Test range. See VEHICLE SPEED SENSOR (VSS) SIGNAL INTERMITTENT  .
P1502 Vehicle Speed Sensor (VSS) PCM detected an error in the vehicle speed information received from the anti-lock brake system (ABS) control module, generic electronic module (GEM) or central timer module (CTM). See VEHICLE SPEED SIGNAL MALFUNCTION  .
P1504 Idle Air Control (IAC) Solenoid Self Test has detected IAC circuit malfunction. See IDLE AIR CONTROL (IAC) VALVE ASSEMBLY MALFUNCTION  .
P1506 Idle Air Control (IAC) Solenoid Self Test has detected over-speed error. See IDLE AIR CONTROL (IAC) SYSTEM MALFUNCTION  .
P1507 Idle Air Control (IAC) Solenoid Self Test has detected under-speed error. See IDLE AIR CONTROL (IAC) VALVE ASSEMBLY MALFUNCTION  .
P1605 Powertrain Control Module (PCM) PCM has experienced a power interrupt in Keep Alive Power (KAPWR) circuit See POWERTRAIN CONTROL MODULE (PCM) MALFUNCTION  .
P1633 Powertrain Control Module (PCM) PCM has experienced a power interrupt in Keep Alive Power (KAPWR) circuit See POWERTRAIN CONTROL MODULE (PCM) MALFUNCTION  .
P1650 Power Steering Pressure (PSP) Switch PSP circuit open during KOEO (2.5L only) See POWER STEERING PRESSURE (PSP) SWITCH (2.5L ONLY) MALFUNCTION  .
P1651 Power Steering Pressure (PSP) Switch PSP signal not changing state during KOER (2.5L only) See POWER STEERING PRESSURE (PSP) SWITCH (2.5L ONLY) MALFUNCTION  .
P1701 AT Solenoid EPC pressure is low, no drop in TSS rpm, TR indicates reverse. See SYMPTOM TESTS in DIAGNOSIS - 4R44E article or SYMPTOM TESTS in DIAGNOSIS - 5R55E article in TRANSMISSION .
P1702 Transmission Range (TR) Sensor TR sensor short to ground or open. See DTC P1702 in DTC IDENTIFICATION table in DIAGNOSIS - 4R44E article or DTC 1702 in DTC IDENTIFICATION table in DIAGNOSIS - 5R55E article in TRANSMISSION.
P1703 Brake Pedal Position (BPP) Switch Brake not cycled during KOER or BPP circuit failure during KOEO. See BRAKE PEDAL POSITION (BPP) SWITCH MALFUNCTION  .
P1704 Transmission Range (TR) Sensor TR sensor or shift cable misadjusted or TR circuit failure. See DTC P1704 in DTC IDENTIFICATION table in DIAGNOSIS - 4R44E article or DTC P1704 in DTC IDENTIFICATION table in DIAGNOSIS - 5R55E article in TRANSMISSION.
P1705 Transmission Range (TR) Sensor TR signal is not in PARK during KOEO Self Test. See DTC P1705 in DTC IDENTIFICATION table in DIAGNOSIS - 4R44E article or DTC P1705 in DTC IDENTIFICATION table in DIAGNOSIS - 5R55E article in TRANSMISSION.
P1706 Transmission Range (TR) Sensor TR signal is not in PARK during KOEO Self Test. See DTC P1706 in DTC IDENTIFICATION table inDIAGNOSIS - 4R44E article or DTCP01706 in DTC IDENTIFICATION table in DIAGNOSIS - 5R55E article in TRANSMISSION.
P1709 Clutch Pedal Position (CPP) Switch Voltage is high or CPP is open when voltage should be low or switch should be closed grounding. See CLUTCH PEDAL POSITION (CPP) SWITCH MALFUNCTION  .
P1711 Transmission Fluid Temperature (TFT) Sensor TFT signal went either low or high of acceptable range during Self Test. See DTC P1711 in DIAGNOSIS - 4R44E article or DTC P1711 in DIAGNOSIS - 5R55E article in TRANSMISSION.
P1713 Transmission Fluid Temperature (TFT) Sensor PCM has detected no TFT change at low range during operation. See DTC P0713 in DTC IDENTIFICATION table in DIAGNOSIS - 4R44E article or DTC P0713 in DTC IDENTIFICATION table in DIAGNOSIS - 5R55E article in TRANSMISSION.
P1714 Shift Solenoid 1 (SS1) SS1 malfunction (mechanical failure). See DTC P1714 in DTC IDENTIFICATION table in DIAGNOSIS - 4R44E article or DTC P1714 in DTC IDENTIFICATION table in DIAGNOSIS - 5R55E article in TRANSMISSION.
P1715 Shift Solenoid 2 (SS2) SS2 malfunction (mechanical failure). See DTC P1715 in DTC IDENTIFICATION table in DIAGNOSIS - 4R44E article or DTC P1715 in DTC IDENTIFICATION table in DIAGNOSIS - 5R55E article in TRANSMISSION.
P1716 Shift Solenoid 3 (SS3) SS3 malfunction (mechanical failure). See DTC P1716 in DTC IDENTIFICATION table in DIAGNOSIS - 4R44E article or DTC P1716 in DTC IDENTIFICATION table in DIAGNOSIS - 5R55E article in TRANSMISSION.
P1717 Shift Solenoid 4 (SS4) SS4 malfunction (mechanical failure). See DTC P1717 in DTC IDENTIFICATION table in DIAGNOSIS - 5R55E article in TRANSMISSION.
P1718 Transmission Fluid Temperature (TFT) Sensor PCM has detected no TFT change at low range during operation. See DTC P1718 in DTC IDENTIFICATION table in DIAGNOSIS - 4R44E article or DTC P1718 in DTC IDENTIFICATION table in DIAGNOSIS - 5R55E article in TRANSMISSION.
P1729 4x4 Low Switch Switch error See 4X4 LOW (4X4L) RANGE MALFUNCTION  .
P1740 Torque Converter Clutch (TCC) Solenoid PCM has detected a mechanical failure of the TCC solenoid. See DTC P1740 in DTC IDENTIFICATION table in DIAGNOSIS - 4R44E article or DTC P1740 in DTC IDENTIFICATION table in DIAGNOSIS - 5R55E article in TRANSMISSION.
P1741 Torque Control Clutch (TCC) Control TCC control error. See SYMPTOM TESTS in DIAGNOSIS - 4R44E article in TRANSMISSION or SYMPTOM TESTS in DIAGNOSIS - 5R55E article in TRANSMISSION .
P1744 Torque Control Clutch (TCC) System TCC system stuck mechanically in OFF position. See SYMPTOM TESTS in DIAGNOSIS - 4R44E article in TRANSMISSION or SYMPTOM TESTS in DIAGNOSIS - 5R55E article in TRANSMISSION .
P1746 Electronic Pressure Control (EPC) Solenoid EPC circuit open. See DTC P1746 in DTC IDENTIFICATION table in DIAGNOSIS - 4R44E article or DTC P1746 in DTC IDENTIFICATION table in DIAGNOSIS - 5R55E article in TRANSMISSION.
P1747 Electronic Pressure Control (EPC) Solenoid EPC circuit shorted. See DTC P1747 in DTC IDENTIFICATION table in DIAGNOSIS - 4R44E article or DTC P1747 in DTC IDENTIFICATION table in DIAGNOSIS - 5R55E article in TRANSMISSION.
P1751 Shift Solenoid 1 (SS1) SS1 functional failure (mechanical or hydraulic failure). See DTC P1751 in DTC IDENTIFICATION table in DIAGNOSIS - 4R44E article or DTC P1751in IDENTIFICATION table in DIAGNOSIS - 5R55E article in TRANSMISSION.
P1754 Coast Clutch Solenoid (CCS) CCS circuit open or shorted or PCM driver failure during on-board diagnostic. See DTC P1754 in DTC IDENTIFICATION table in DIAGNOSIS - 4R44E article in TRANSMISSION.
P1756 Shift Solenoid 2 (SS2) SS2 functional failure (mechanical or hydraulic failure). See DTC P1756 in DTC IDENTIFICATION table in DIAGNOSIS - 5R55E article in TRANSMISSION.
P1761 Shift Solenoid 3 (SS3) SS3 functional failure (mechanical or hydraulic failure). See DTC P1761 in DTC IDENTIFICATION table in DIAGNOSIS - 5R55E article in TRANSMISSION.
P1762 Transmission SS3/SS4/OD band failure. See DTC P1762 in DTC IDENTIFICATION table in DIAGNOSIS - 5R55E article in TRANSMISSION.
P1780 Transmission Control Switch (TCS) TCS was not cycled during KOER Self Test. TCS circuit open or shorted. See TRANSMISSION CONTROL SWITCH (TCS) OR TRANSMISSION CONTROL INDICATOR LAMP (TCIL) CIRCUIT MALFUNCTION  .
P1781 4x4 Low SW Out of test range See 4X4 LOW (4X4L) RANGE MALFUNCTION  .
P1783 Transmission Transmission fluid temperature exceeds 127°C (270°F). See DTC P1783 in DTC IDENTIFICATION table in DIAGNOSIS - 4R44E article or DTC P1783 in DTC IDENTIFICATION table in DIAGNOSIS - 5R55E article in TRANSMISSION.
P1900 Turbine Speed Sensor (TSS) PCM has detected an intermittent TSS signal. See DTC P1900 in DTC IDENTIFICATION table in DIAGNOSIS - 5R55E article in TRANSMISSION.
P1901 Turbine Speed Sensor (TSS) PCM has detected an intermittent TSS signal. See DTC P1901 in DTC IDENTIFICATION table in DIAGNOSIS - 5R55E article in TRANSMISSION.
U1020 Data Circuit SCP Invalid or Missing Data for Air Conditioning Clutch. See TROUBLE SHOOTING in A/C-HEATER SYSTEM article .
U1039 Data Circuit SCP Invalid or Missing Data for Vehicle Speed. See MODULE COMMUNICATIONS NETWORK article .
U1041 Data Circuit SCP Invalid or Missing Data for Vehicle Speed. See MODULE COMMUNICATIONS NETWORK article .
U1051 Data Circuit SCP Invalid or Missing Data for Brakes. See MODULE COMMUNICATIONS NETWORK article .
U1131 Data Circuit SCP Invalid or Missing Data for Fuel System. See PRELIMINARY PROCEDURE in INSTRUMENT PANELS article .
U1147 Data Circuit SCP Invalid or Missing Data for Vehicle Security. See DTC U1147: INVALID OR MISSING DATA FOR VEHICLE SECURITY . .
U1451 Data Circuit SCP Invalid or Missing Data for Anti-Theft Module. See TEST 1: NO COMMUNICATION WITH PASSIVE ANTI-THEFT SYSTEM MODULE .
U1262 Data Circuit SCP Communication Bus Fault-Perform Network Communications Test. See MODULE COMMUNICATIONS NETWORK article .
U2243 Data Circuit SCP Invalid or Missing Data for Exterior Environment. See MODULE COMMUNICATIONS NETWORK article .
UXXXX Data Circuit "U" DTCs received during Self-test of another module. See ON-BOARD DIAGNOSTIC TESTS  or MODULE COMMUNICATIONS NETWORK article .
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