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Diagnostic Trouble Code Numbers

DIAGNOSTIC TROUBLE CODE NUMBERS SPECIFICATION

NO. DIAGNOSED CIRCUIT CONDITION ACTION
P0102 Mass Air Flow Sensor (MAF) MAF signal went below 0.23 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 4.60 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}). 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) 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). 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). See INTAKE AIR TEMPERATURE (IAT) SENSOR AND ENGINE COOLANT TEMPERATURE (ECT) SENSOR .
P0121 Throttle Position (TP) Sensor Non-closed throttle position at idle. See THROTTLE POSITION (TP) SENSOR CIRCUIT MALFUNCTION .
P0122 Throttle Position (TP) Sensor TP signal is less than Self Test minimum of 0.17 volt (3.42%) See THROTTLE POSITION (TP) SENSOR CIRCUIT MALFUNCTION .
P0123 Throttle Position (TP) Sensor TP signal is greater than Self Test maximum of 4.6 volts (93%) 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 (Front RH) 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 HTR11 HO2S-11 heater circuit is open, shorted to ground, shorted to VPWR, or has low or high current draw. See HEATED OXYGEN SENSOR (HO2S) HEATER CIRCUIT .
P0136 Heated Oxygen Sensor (HO2S)-12 HO2S-12 output voltage fails to meet the calibrated limits (Bank 1) See HEATED OXYGEN SENSOR (HO2S) .
P0141 HO2S HTR12 HO2S-12 heater circuit is open, shorted to ground, shorted to VPWR, or has low or high current draw. See HEATED OXYGEN SENSOR (HO2S) HEATER CIRCUIT .
P0151 Heated Oxygen Sensor (HO2S)-21 HO2S-21 (Front LH) 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 is open, shorted to ground, shorted to VPWR, or has low or high current draw. See HEATED OXYGEN SENSOR (HO2S) HEATER CIRCUIT .
P0156 Heated Oxygen Sensor (HO2S)-22 HO2S-22 output voltage fails to meet the calibrated limits (Bank 2). See HEATED OXYGEN SENSOR (HO2S) .
P0161 HO2S HTR 22 HO2S-22 heater circuit has a short to ground, open or short to VPWR. See HEATED OXYGEN SENSOR (HO2S) HEATER CIRCUIT .
P0171 Adaptive Fuel Control Fuel/air ratio is too lean (RH). See ADAPTIVE FUEL CONTROL .
P0172 Adaptive Fuel Control Fuel/air ratio is too rich (RH). See ADAPTIVE FUEL CONTROL .
P0174 Adaptive Fuel Control Fuel/air ratio is too lean (LH) See ADAPTIVE FUEL CONTROL .
P0175 Adaptive Fuel Control Fuel/air ratio is too rich (LH). See ADAPTIVE FUEL CONTROL .
P0176 Flexible Fuel (FF) Sensor Circuit Malfunction FF Sensor circuit signal to PCM fell out of the minimum and maximum calibrated range. See FLEXIBLE FUEL (FF) SENSOR .
P0201 Fuel injector Malfunction Fuel Injector #1 does not operate electrically. See FUEL INJECTOR MALFUNCTION .
P0202 Fuel injector Malfunction Fuel Injector #2 does not operate electrically. See FUEL INJECTOR MALFUNCTION .
P0203 Fuel injector Malfunction Fuel Injector #3 does not operate electrically. See FUEL INJECTOR MALFUNCTION .
P0204 Fuel injector Malfunction Fuel Injector #4 does not operate electrically. See FUEL INJECTOR MALFUNCTION .
P0205 Fuel injector Malfunction Fuel Injector #5 does not operate electrically. See FUEL INJECTOR MALFUNCTION .
P0206 Fuel injector Malfunction Fuel Injector #6 does not operate electrically. See FUEL INJECTOR MALFUNCTION .
P0230 Fuel Pump Primary or Secondary Circuit Excessive current draw is detected on the FP circuit or voltage is not detected on the FP circuit. See FUEL PUMP (FP) PRIMARY OR SECONDARY CIRCUIT .
P0231 Fuel Pump Primary or Secondary Circuit PCM did not detect B+ voltage on the FPM circuit when the FP was commanded ON. See FUEL PUMP (FP) PRIMARY OR SECONDARY CIRCUIT .
P0232 Fuel Pump Primary or Secondary Circuit PCM detected the FPM circuit voltage was high when the FP 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 CRANKSHAFT POSITION (CKP) SENSOR MALFUNCTION
P0340 Camshaft Position (CMP) Sensor Camshaft Position (CMP) sensor circuit failure. See CAMSHAFT POSITION (CMP) SENSOR MALFUNCTION .
P0350 Ignition Coil Ignition coil primary/secondary 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 Insufficient EGR flow. See EGR SYSTEM MALFUNCTION .
P0402 Exhaust Gas Recirculation (EGR) System OPFEGR signal at idle is greater than at KOEO by a calibrated amount. 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 Signal moved outside the minimum or maximum allowable calibrated parameters for a specified purge duty cycle by PCM command. See EVAPORATIVE (EVAP) EMISSION CANISTER PURGE SOLENOID MALFUNCTION .
P0451 Evaporative Emission (EVAP) System Fuel tank pressure changes greater than 14 in-H2O in 0.10 seconds. See EVAP SYSTEM MALFUNCTION .
P0452 Fuel Tank Pressure (FTP) Sensor FTP circuit input below minimum. See FUEL TANK PRESSURE (FTP) SENSOR MALFUNCTION .
P0453 Fuel Tank Pressure (FTP) Sensor FTP circuit input above maximum. 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 .
P0456 Evaporative Emission (EVAP) System A small leak has been detected in the EVAP system. See EVAPORATIVE EMISSION (EVAP) MONITOR AND SYSTEM MALFUNCTION .
P0457 Evaporative Emission (EVAP) System Initial vacuum could not be achieved after a refueling event and the purge vapor flow is excessive. 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 .
P0461 Evaporative Emission (EVAP) System Fuel level input noisy. See EVAP SYSTEM MALFUNCTION .
P0500 Vehicle Speed Signal (VSS) PCM detected an error in the vehicle speed information. See VEHICLE SPEED SIGNAL MALFUNCTION .
P0501 Vehicle Speed Signal (VSS) PCM detected an error in the vehicle speed information. See VEHICLE SPEED SIGNAL MALFUNCTION .
P0503 Vehicle Speed Signal (VSS) Poor or noisy VSS performance. See VEHICLE SPEED SENSOR (VSS) SIGNAL INTERMITTENT .
P0505 Idle Air Control (IAC) system Desired RPM could not be reached or controlled during KOEO Self Test. 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 COMPUTERIZED ENGINE CONTROLS .
P0703 Brake Pedal Position (BPP) Switch PCM did not receive a BPP input. See BRAKE PEDAL POSITION (BPP) SWITCH MALFUNCTION .
P0704 Clutch Pedal Position (CPP) Switch CPP Switch is malfunctioning. See CLUTCH PEDAL POSITION (CPP) SWITCH MALFUNCTION .
P0705 Transmission Range (TR) Sensor Digital TR 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 Digital TR sensor circuit TR3A 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 First gear error. 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 Second gear error. 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 Third gear error. 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 Fourth gear error. 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 Fifth gear error. See 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. See DTC P0743 in DTC IDENTIFICATION table in DIAGNOSIS - 4R44E article in TRANSMISSION.
P0750 Shift Solenoid 1 (SS1) SS1 solenoid circuit failure. 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. 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 solenoid circuit failure. 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. 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 solenoid circuit failure. 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. 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 solenoid circuit failure. See 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 cannot be completed.
 See DATA LINK CONNECTOR (DLC) MALFUNCTION .
  • DTC displayed by NGS tester not listed.
  • NGS tester communication problem.
  • Unable to activate KOEO or KOER Self Test.
  • Unable to access Continuous Memory DTC's.
P1100 Mass Air Flow Sensor (MAF) MAF signal went below 0.23 volt or above 4.60 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 0.27 volt during KOEO Self Test or MAF signal was not between 0.46-2.44 volts during KOER Self Test. See MASS AIR FLOW (MAF) SENSOR .
P1112 Intake Air Temperature (IAT) Sensor IAT signal was intermittent during the Comprehensive Component Monitor. 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 circuit was intermittently open or shorted while engine was running. See INTAKE AIR TEMPERATURE (IAT) SENSOR AND ENGINE COOLANT TEMPERATURE (ECT) SENSOR .
P1120 Throttle Position (TP) Sensor TP signal falls between 0.17 and 0.49 volts (3.42 and 9.85%) which is below the closed throttle position range. 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 1.17 volts (13.27 to 23.52%). See THROTTLE POSITION (TP) SENSOR CIRCUIT MALFUNCTION .
P1125 Throttle Position (TP) Sensor TP signal went below 0.49 volt or above 4.65 volts sometime during the last 80 warm-up cycles. See THROTTLE POSITION (TP) SENSOR CIRCUIT MALFUNCTION .
P1127 Heated Oxygen Sensor (HO2S) Inferred exhaust temperature to determine when HO2S heaters are cycled on below a minimum calibrated limit. See HO2S HEATER(S) .
P1128 Heated Oxygen Sensor (HO2S) Front HO2S signal(s) response for a fuel shift to the correct engine bank was not indicated. See HEATED OXYGEN SENSOR HO2S SIGNALS .
P1130 Heated Oxygen Sensor (HO2S)-11 HO2S-11 (Front RH) fails to switch due to circuit or fuel at or exceeding a calibrated limit. See FUEL SYSTEM NOT SWITCHING AT FUEL TRIM (RICH OR LEAN) .
P1131 Heated Oxygen Sensor (HO2S)-11 HO2S sensor is indicating lean at the end of the test trying to correct for an over-rich condition (Bank 1) and a switch is not detected for a calibrated amount of time. See UPSTREAM HEATED OXYGEN SENSOR (HO2S) NOT SWITCHING .
P1132 Heated Oxygen Sensor (HO2S)-11 HO2S sensor is indicating rich at the end of the test trying to correct for an over-lean condition (Bank 1) and a switch is not detected for a calibrated amount of time. See UPSTREAM HEATED OXYGEN SENSOR (HO2S) NOT SWITCHING .
P1137 Heated Oxygen Sensor (HO2S)-12 PCM does not detect rich signal during KOER Self Test. See HEATED OXYGEN SENSOR (HO2S) .
P1138 Heated Oxygen Sensor (HO2S)-12 PCM does not detect lean signal during KOER Self Test. See HEATED OXYGEN SENSOR (HO2S) .
P1150 Heated Oxygen Sensor (HO2S)-21 HO2S-21 (Front LH) fails to switch due to circuit or fuel at/or exceeding a calibrated limit. See FUEL SYSTEM NOT SWITCHING AT FUEL TRIM (RICH OR LEAN) .
P1151 Heated Oxygen Sensor (HO2S)-21 HO2S sensor is indicating lean at the end of the test trying to correct for an over-rich condition (Bank 2) and a switch is not detected for a calibrated amount of time. See UPSTREAM HEATED OXYGEN SENSOR (HO2S) NOT SWITCHING .
P1152 Heated Oxygen Sensor (HO2S)-21 HO2S sensor is indicating rich at the end of the test trying to correct for an over-lean condition (Bank 2) and a switch is not detected for a calibrated amount of time. See UPSTREAM HEATED OXYGEN SENSOR (HO2S) NOT SWITCHING .
P1260 Anti-Theft System Anti-theft system has determined a theft condition existed and the engine is disabled. See ANTI-THEFT SYSTEM .
P1270 Engine RPM/Vehicle Speed Limiter Vehicle operated in a manner which caused the engine or vehicle to exceed a calibrated limit. See ENGINE RPM/VEHICLE SPEED LIMITER  .
P1309 Misfire Detection Monitor Misfire Detection Monitor is disabled. See MISFIRE DETECTION MONITOR  .
P1400 Differential Pressure Feedback EGR (DPFEGR) Sensor DPFEGR SIG circuit input is below minimum (0.2 V). See DIFFERENTIAL PRESSURE FEEDBACK EGR (DPFEGR) SENSOR MALFUNCTION .
P1401 Differential Pressure Feedback EGR (DPFEGR) Sensor DPFEGR SIG circuit input is above maximum (4.5 V). See DIFFERENTIAL PRESSURE FEEDBACK EGR (DPFEGR) SENSOR MALFUNCTION .
P1405 Differential Pressure Feedback EGR (DPFEGR) Sensor Exhaust manifold side (upstream) DPFEGR pressure hose is off or plugged. See DIFFERENTIAL PRESSURE FEEDBACK EGR (DPFEGR) SENSOR MALFUNCTION .
P1406 Differential Pressure Feedback EGR (DPFEGR) Sensor Exhaust manifold side (downstream) DPFEGR pressure hose is off or plugged. See DIFFERENTIAL PRESSURE FEEDBACK EGR (DPFEGR) SENSOR MALFUNCTION .
P1408 EGR System EGR flow is less than required calibrated limit. See EGR SYSTEM MALFUNCTION .
P1409 EGR Vacuum Regulator (EGRVR) Solenoid Self test has detected an electrical malfunction in EGRVR circuit. See EGR VACUUM REGULATOR (EGRVR) SOLENOID CIRCUIT MALFUNCTION .
P1443 EVAP A substantial leak and no purge flow has been detected in the EVAP system. 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 A/C Clutch Relay (ACCR) Excessive current draw is detected on the ACCR circuit when PCM grounds the circuit or voltage is not detected on the ACCR circuit when the circuit is not grounded by the PCM. See A/C CLUTCH RELAY (ACCR) 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) VSS signal was intermittent. See VEHICLE SPEED SENSOR (VSS) SIGNAL INTERMITTENT .
P1501 Vehicle Speed Signal (VSS) VSS signal is 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. See VEHICLE SPEED SIGNAL MALFUNCTION .
P1504 Idle Air Control (IAC) Solenoid Electrical load failure on IAC output circuit. See IDLE AIR CONTROL (IAC) VALVE ASSEMBLY MALFUNCTION .
P1506 Idle Air Control (IAC) Solenoid PCM detected an engine idle speed greater than the desired RPM. See IDLE AIR CONTROL (IAC) SYSTEM MALFUNCTION .
P1507 Idle Air Control (IAC) Solenoid Engine idle speed less than the desired RPM. 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 signal is out of Self Test range. See POWER STEERING PRESSURE (PSP) SWITCH (2.5L ONLY) MALFUNCTION .
P1651 Power Steering Pressure (PSP) Switch PSP signal is open or shorted. 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 DIAGNOSIS in DIAGNOSIS - 4R44E article in Transmission or SYMPTOM DIAGNOSIS in DIAGNOSIS - 5R55E article in Transmission .
P1702 Transmission Range (TR) Sensor Digital TR signal intermittent. See DTC P1702 in DTC IDENTIFICATION table in DIAGNOSIS - 4R44E article or DTC P1702 in DTC IDENTIFICATION table in DIAGNOSIS - 5R55E article in TRANSMISSION.
P1703 Brake Pedal Position (BPP) Switch BPP signal was high (KOEO) or BPP signal did not cycle high or low. See BRAKE PEDAL POSITION (BPP) SWITCH MALFUNCTION .
P1704 Transmission Range (TR) Sensor Digital TR circuits reading in-between gear positions during KOEO/KOER. 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 Digital TR not in PARK or NEUTRAL during KOEO/KOER. See DTC P1705 in DTC IDENTIFICATION table in DIAGNOSIS - 4R44E article or DTC P1705 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 the circuit. See CLUTCH PEDAL POSITION (CPP) SWITCH MALFUNCTION .
P1711 Transmission Fluid Temperature (TFT) Sensor TFT out of on-board diagnostic range. See DTC P1711 in DTC IDENTIFICATION table in DIAGNOSIS - 4R44E article or DTC P1711 in DTC IDENTIFICATION table 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 P1713 in DTC IDENTIFICATION table in DIAGNOSIS - 4R44E article or DTC P1713 in DTC IDENTIFICATION table in DIAGNOSIS - 5R55E article in TRANSMISSION.
P1714 Shift Solenoid 1 (SS1) SS1 malfunction. 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. 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. 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. See DTC P1711 in DTC IDENTIFICATION table in DIAGNOSIS - 5R55E article in TRANSMISSION.
P1718 Transmission Fluid Temperature (TFT) Sensor PCM has detected no TFT change at high 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 4x4 Shift Control switch failure (either open or shorted) See 4X4 LOW (4X4L) RANGE MALFUNCTION .
P1740 Torque Converter Clutch (TCC) Solenoid TCC malfunction. See DTC P1740 in DTC IDENTIFICATION table in DIAGNOSIS - 4R44E article or DTC P1740 in DTC IDENTIFICATION table 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.
P1754 Coast Clutch Solenoid (CCS) CCS circuit failure. See DTC P1740 in DTC IDENTIFICATION table in DIAGNOSIS - 4R44E article in TRANSMISSION.
P1780 Transmission Control Switch (TCS) TCS was not cycled during KOER Self Test. See TRANSMISSION CONTROL SWITCH (TCS) OR TRANSMISSION CONTROL INDICATOR LAMP (TCIL) CIRCUIT MALFUNCTION .
P1781 4x4 Low SW 4x4L position (closed) during KOEO Self Test. See 4X4 LOW (4X4L) RANGE MALFUNCTION .
P1783 Transmission Transmission over temperature condition. 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 OSS signal. See DTC P1783 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 MANUAL A/C-HEATER SYSTEMS article in HVAC .
U1039 Data Circuit SCP Invalid or Missing Data for Vehicle Speed. See MODULE COMMUNICATIONS NETWORK article in Accessories & Equipment .
U1041 Data Circuit SCP Invalid or Missing Data for Vehicle Speed. See MODULE COMMUNICATIONS NETWORK article in Accessories & Equipment .
U1051 Data Circuit SCP Invalid or Missing Data for Brakes. Diagnose Headlamps as necessary. (Refer to appropriate SYSTEM WIRING DIAGRAMS for B2500, SYSTEM WIRING DIAGRAMS for B3000, or SYSTEM WIRING DIAGRAMS for B4000.
U1131 Data Circuit SCP Invalid or Missing Data for Fuel System. See INSTRUMENT PANELS article in Accessories & Equipment .
U1147 Data Circuit SCP Invalid or Missing Data for Vehicle Security. See U1147: FAULTY SCP LINK OR INCORRECT PCM CALIBRATION in IMMOBILIZER SYSTEMS article in Accessories & Equipment .
U1451 Data Circuit SCP Invalid or Missing Data for Anti-Theft Module. See TEST 1: NO COMMUNICATION WITH PASSIVE ANTI-THEFT SYSTEM MODULE in IMMOBILIZER SYSTEMS article in Accessories & Equipment .
U1262 Data Circuit SCP Communication Bus Fault - Perform Network Communications Test. See MODULE COMMUNICATIONS NETWORK article in Accessories & Equipment .
U2243 Data Circuit SCP Invalid or Missing Data for Exterior Environment. See MODULE COMMUNICATIONS NETWORK article in Accessories & Equipment .
UXXXX Data Circuit "U" DTCs received during Self-test of another module. See ON-BOARD DIAGNOSTIC TESTS  .
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