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Diagnostic Trouble Code Definitions

DIAGNOSTIC TROUBLE CODE MESSAGES & CODES

Generic Scan Tool Code (1) DRBIII® Scan Tool Message
P0031  1/1 O2 SENSOR HEATER CIRCUIT LOW
P0032  1/1 O2 SENSOR HEATER CIRCUIT HIGH
P0037  1/2 O2 SENSOR HEATER CIRCUIT LOW
P0038  1/2 O2 SENSOR HEATER CIRCUIT HIGH
P0051  2/1 O2 SENSOR HEATER CIRCUIT LOW
P0052  2/1 O2 SENSOR HEATER CIRCUIT HIGH
P0071  BATTERY TEMP SENSOR PERFORMANCE
P0107  MAP SENSOR VOLTAGE TOO LOW
P0108  MAP SENSOR VOLTAGE TOO HIGH
P0111  INTAKE AIR TEMP SENSOR PERFORMANCE
P0112  INTAKE AIR TEMP SENSOR VOLTAGE LOW
P0113  INTAKE AIR TEMP SENSOR VOLTAGE HIGH
P0117  ECT SENSOR VOLTAGE TOO LOW
P0118  ECT SENSOR VOLTAGE TOO HIGH
P0120 (2) THROTTLE POSITION SENSOR SIGNAL CIRCUIT
P0121  TPS VOLTAGE DOES NOT AGREE WITH MAP
P0122  THROTTLE POSITION SENSOR VOLTAGE LOW
P0123  THROTTLE POSITION SENSOR VOLTAGE HIGH
P0125  CLOSED LOOP TEMP NOT REACHED
P0131  1/1 O2 SENSOR SHORTED TO GROUND
P0132  1/1 O2 SENSOR SHORTED TO VOLTAGE
P0133  1/1 O2 SENSOR SLOW RESPONSE
P0135  1/1 O2 SENSOR HEATER FAILURE
P0136  1/2 O2 SENSOR HEATER CIRCUIT MALFUNCTION
P0137  1/2 O2 SENSOR SHORTED TO GROUND
P0138  1/2 O2 SENSOR SHORTED TO VOLTAGE
P0139  1/2 O2 SENSOR SLOW RESPONSE
P0141  1/2 O2 SENSOR HEATER FAILURE
P0151  2/1 O2 SENSOR SHORTED TO GROUND
P0152  2/1 O2 SENSOR SHORTED TO VOLTAGE
P0153  2/1 O2 SENSOR SLOW RESPONSE
P0155  2/1 O2 SENSOR HEATER FAILURE
P0157  2/2 O2 SENSOR SHORTED TO GROUND
P0158  2/2 O2 SENSOR SHORTED TO VOLTAGE
P0159  2/2 O2 SENSOR SLOW RESPONSE
P0161  2/2 O2 SENSOR HEATER FAILURE
P0171  1/1 FUEL SYSTEM LEAN
P0172  1/1 FUEL SYSTEM RICH
P0174  2/1 FUEL SYSTEM LEAN
P0175  2/1 FUEL SYSTEM RICH
P0201  INJECTOR #1 CONTROL CIRCUIT
P0202  INJECTOR #2 CONTROL CIRCUIT
P0203  INJECTOR #3 CONTROL CIRCUIT
P0204  INJECTOR #4 CONTROL CIRCUIT
P0205  INJECTOR #5 CONTROL CIRCUIT
P0206  INJECTOR #6 CONTROL CIRCUIT
P0207  INJECTOR #7 CONTROL CIRCUIT (4.7L)
P0208  INJECTOR #8 CONTROL CIRCUIT (4.7L)
P0218 (2) HIGH TEMPERATURE OPERATION ACTIVATED
P0300  MULTIPLE CYLINDER MISFIRE
P0301  CYLINDER #1 MISFIRE
P0302  CYLINDER #2 MISFIRE
P0303  CYLINDER #3 MISFIRE
P0304  CYLINDER #4 MISFIRE
P0305  CYLINDER #5 MISFIRE
P0306  CYLINDER #6 MISFIRE
P0307  CYLINDER #7 MISFIRE (4.7L)
P0308  CYLINDER #8 MISFIRE (4.7L)
P0320  NO CRANK REFERENCE SIGNAL AT PCM
P0325  KNOCK SENSOR #1 CIRCUIT
P0330  KNOCK SENSOR #2 CIRCUIT
P0340  NO CAM SIGNAL AT PCM
P0351  IGNITION COIL #1 PRIMARY CIRCUIT (4.0L)
P0352  IGNITION COIL #2 PRIMARY CIRCUIT (4.0L)
P0353  IGNITION COIL #3 PRIMARY CIRCUIT (4.0L)
P0351  IGNITION COIL #1 PRIMARY CIRCUIT (4.7L)
P0352  IGNITION COIL #2 PRIMARY CIRCUIT (4.7L)
P0353  IGNITION COIL #3 PRIMARY CIRCUIT (4.7L)
P0354  IGNITION COIL #4 PRIMARY CIRCUIT (4.7L)
P0355  IGNITION COIL #5 PRIMARY CIRCUIT (4.7L)
P0356  IGNITION COIL #6 PRIMARY CIRCUIT (4.7L)
P0357  IGNITION COIL #7 PRIMARY CIRCUIT (4.7L)
P0358  IGNITION COIL #8 PRIMARY CIRCUIT (4.7L)
P0420  1/1 CATALYTIC CONVERTER EFFICIENCY
P0432  2/1 CATALYTIC CONVERTER EFFICIENCY
P0441  EVAP PURGE FLOW MONITOR FAILURE
P0442  EVAP LEAK MONITOR MEDIUM (.040") LEAK DETECTED
P0443  EVAP PURGE SOLENOID CIRCUIT
P0455  EVAP LEAK MONITOR LARGE LEAK DETECTED
P0456  EVAP LEAK MONITOR SMALL (.020") LEAK DETECTED
P0460  FUEL LEVEL UNIT NO CHANGE OVER MILES
P0461  FUEL LEVEL UNIT NO CHANGE OVER TIME
P0462  FUEL LEVEL SENDING UNIT VOLTS TOO LOW
P0463  FUEL LEVEL SENSOR VOLTS TOO HIGH
P0500  NO VEHICLE SPEED SENSOR SIGNAL
P0505  IDLE AIR CONTROL MOTOR CIRCUITS
P0522  OIL PRESSURE SENSOR VOLTS LOW
P0523  OIL PRESSURE SENSOR VOLTS HIGH
P0601  PCM INTERNAL CONTROLLER FAILURE
P0604 (2) INTERNAL TCM
P0605 (2) INTERNAL TCM
P0613 (2) INTERNAL TCM
P0622 (3) GENERATOR FIELD NOT SWITCHING PROPERLY
P0700  TCM CONTROLLER DTC PRESENT
P0706 (2) CHECK SHIFTER SIGNAL
P0711 (4) TRANS TEMP SENSOR, NO TEMP RISE AFTER START
P0712 (4) TRANS TEMP SENSOR VOLTAGE TOO LOW
P0713 (4) TRANS TEMP SENSOR VOLTAGE TOO HIGH
P0715 (2) INPUT SPEED SENSOR ERROR
P0720 (2) OUTPUT SPEED SENSOR ERROR
P0720 (4) LOW OUTPUT SPEED SENSOR - RPM ABOVE 15 MPH
P0725 (2) ENGINE SPEED SENSOR CIRCUIT
P0731 (2) GEAR RATIO ERROR IN 1ST
P0732 (2) GEAR RATIO ERROR IN 2ND
P0733 (2) GEAR RATIO ERROR IN 3RD
P0734 (2) GEAR RATIO ERROR IN 4TH
P0735 (2) GEAR RATIO ERROR 4TH PRIME
P0736 (2) GEAR RATIO ERROR IN REVERSE
P0740 (2) TORQUE CONVERTER CLUTCH CONTROL CIRCUIT
P0740 (4) TORQ CONV CLU, NO RPM DROP AT LOCKUP
P0743 (4) TORQUE CONVERTER CLUTCH SOLENOID/TRANS RELAY CIRCUITS
P0748 (4) PRESSURE SOL CONTROL/TRANS RELAY CIRCUITS
P0750 (2) LR SOLENOID CIRCUIT
P0751 (4) O/D SWITCH PRESSED (LO) MORE THAN 5 MINUTES
P0753 (4) TRANS 3-4 SHIFT SOL/TRANS RELAY CIRCUITS
P0755 (2) 2C SOLENOID CIRCUIT
P0760 (2) OD SOLENOID CIRCUIT
P0765 (2) UD SOLENOID CIRCUIT
P0770 (2) 4C SOLENOID CIRCUIT
P0783 (4) 3-4 SHIFT SOL, NO RPM DROP AT LOCKUP
P0841 (2) LR PRESSURE SWITCH SENSE CIRCUIT
P0845 (2) 2C HYDRAULIC PRESSURE TEST FAILURE
P0846 (2) 2C PRESSURE SWITCH SENSE CIRCUIT
P0867 (2) LINE PRESSURE FAULT
P0868 (2) LINE PRESSURE LOW
P0869 (2) LINE PRESSURE HIGH
P0870 (2) OD HYDRAULIC PRESSURE TEST FAILURE
P0871 (2) OD PRESSURE SWITCH SENSE CIRCUIT
P0875 (2) UD HYDRAULIC PRESSURE TEST FAILURE
P0876 (2) UD PRESSURE SWITCH SENSE CIRCUIT
P0884 (2) POWER UP AT SPEED
P0888 (2) RELAY OUTPUT ALWAYS OFF
P0890 (2) SWITCHED BATTERY
P0891 (2) TRANSMISSION RELAY ALWAYS ON
P0932 (2) LINE PRESSURE SENSOR FAULT
P0944 (2) LOSS OF PRIME
P0987 (2) 4C HYDRAULIC PRESSURE TEST FAILURE
P0988 (2) 4C PRESSURE SWITCH SENSE CIRCUIT
P1195  1/1 O2 SENSOR SLOW DURING CATALYST MONITOR
P1196  2/1 O2 SENSOR SLOW DURING CATALYST MONITOR
P1281  ENGINE IS COLD TOO LONG
P1282  FUEL PUMP/SYSTEM RELAY CONTROL CIRCUIT
P1294  TARGET IDLE NOT REACHED
P1296  NO 5 VOLTS TO MAP SENSOR
P1297  NO CHANGE IN MAP FROM START TO RUN
P1299  VACUUM LEAK FOUND
P1388  AUTO SHUTDOWN RELAY CONTROL CIRCUIT
P1389  NO ASD RELAY OUTPUT VOLTAGE AT PCM
P1391  INTERMITTENT LOSS OF CMP OR CKP
P1398  MISFIRE ADAPTIVE NUMERATOR AT LIMIT
P1486  EVAP LEAK MONITOR PINCHED HOSE FOUND
P1491  RAD FAN CONTROL RELAY CIRCUIT (4.0L)
P1492 (3) AMBIENT/BATT TEMP SEN VOLTAGE TOO HIGH
P1493 (3) AMBIENT/BATT TEMP SEN VOLTAGE TOO LOW
P1494  LEAK DETECTION PUMP SW OR MECHANICAL FAULT
P1495  LEAK DETECTION PUMP SOLENOID CIRCUIT
P1499  HYDRAULIC FAN SOLENOID CIRCUIT (4.7L)
P1594 (3) CHARGING SYSTEM VOLTAGE TOO HIGH
P1595 (5) SPEED CONTROL SOLENOID CIRCUITS
P1596 (5) SPEED CONTROL SWITCH ALWAYS HIGH
P1597 (5) SPEED CONTROL SWITCH ALWAYS LOW
P1598  A/C PRESSURE SENSOR VOLTS TOO HIGH
P1599  A/C PRESSURE SENSOR VOLTS TOO LOW
P1682 (3) CHARGING SYSTEM VOLTAGE TOO LOW
P1683 (5) SPD CTRL PWR RELAY; OR S/C 12V DRIVER CKT
P1684 (2) BATTERY WAS DISCONNECTED
P1685  WRONG OR INVALID KEY MSG RECEIVED FROM SKIM
P1686  NO SKIM BUS MESSAGE RECEIVED
P1694 (2) BUS COMMUNICATION WITH ENGINE MODULE
P1696  PCM FAILURE EEPROM WRITE DENIED
P1698  NO BUS MESSAGE FROM TCM
P1899  TRS PERFORMANCE
P1715 (2) RESTRICTED PORT IN T3 RANGE
P1736 (2) GEAR RATIO ERROR IN 2ND PRIME
P1756 (4) GOV PRESS NOT EQUAL TO TARGET @ 15-20 PSI
P1757 (4) GOV PRESS ABOVE 3 PSI IN GEAR WITH 0 MPH
P1762 (4) GOV PRESS SEN OFFSET VOLTS TOO LO OR HIGH
P1763 (4) GOVERNOR PRESSURE SENSOR VOLTS TOO HIGH
P1764 (4) GOVERNOR PRESSURE SENSOR VOLTS TOO LOW
P1765 (4) TRANS 12 VOLT SUPPLY RELAY CTRL CIRCUIT
P1775 (2) SOLENOID SWITCH VALVE LATCHED IN TCC POSITION
P1776 (2) SOLENOID SWITCH VALVE LATCHED IN LR POSITION
P1790 (2) FAULT IMMEDIATELY AFTER SHIFT
P1793 (2) TRD LINK COMMUNICATION ERROR
P1794 (2) SPEED SENSOR GROUND ERROR
P1799 (2) CALCULATED OIL TEMP IN USE
P2700 (2) INADEQUATE ELEMENT VOLUME LR
P2701 (2) INADEQUATE ELEMENT VOLUME 2C
P2702 (2) INADEQUATE ELEMENT VOLUME OD
P2703 (2) INADEQUATE ELEMENT VOLUME UD
P2704 (2) INADEQUATE ELEMENT VOLUME 4C
P2706 (2) MS SOLENOID CIRCUIT
(1) Perform appropriate DTC test under DIAGNOSTIC TESTS.
(2) This DTC is related to the 545RFE automatic transmission, which is used on the 4.7L. For diagnostic procedure, see appropriate DIAGNOSIS article in AUTOMATIC TRANSMISSIONS.
(3) This DTC is related to charging system. For diagnostic procedure, see appropriate GENERATORS & REGULATORS article in STARTING & CHARGING SYSTEMS.
(4) This DTC is related to the 42RE automatic transmission, which is used on the 4.0L. For diagnostic procedure, see appropriate DIAGNOSIS article in AUTOMATIC TRANSMISSIONS.
(5) This DTC is related to cruise control system diagnostics. For diagnostic procedure, see appropriate CRUISE CONTROL SYSTEMS article in ACCESSORIES & EQUIPMENT.
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