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Diagnostic Trouble Code Definitions

DTC MESSAGES & CODES

Generic Scan Tool Code DRB-III(R) Scan Tool Message
P0071  AMBIENT TEMPERATURE SENSOR PERFORMANCE
P0106  BAROMETRIC PRESSURE OUT OF RANGE
P0107  MAP SENSOR VOLTS TOO LOW
P0108  MAP SENSOR VOLTS TOO HIGH
P0117  ECT SENSOR VOLTAGE TOO LOW
P0118  ECT SENSOR VOLTAGE TOO HIGH
P0121  TPS VOLTAGE DOES NOT AGREE WITH MAP
P0122  THROTTLE POSITION SENSOR VOLTAGE LOW
P0123  THROTTLE POSITION SENSOR VOLTAGE HIGH
P0125  CLOSED LOOP TEMPERATURE 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
P0134  1/1 O2 SENSOR STAYS AT CENTER
P0135  1/1 O2 SENSOR HEATER FAILURE
P0137  1/2 O2 SENSOR SHORTED TO GROUND
P0138  1/2 O2 SENSOR SHORTED TO VOLTAGE
P0139  1/2 O2 SENSOR SLOW RESPONSE
P0140  1/2 O2 SENSOR STAYS AT CENTER
P0141  1/2 O2 SENSOR HEATER FAILURE
P0171  1/1 FUEL SYSTEM LEAN
P0172  1/1 FUEL SYSTEM RICH
P0201  INJECTOR NO. 1 CONTROL CIRCUIT
P0202  INJECTOR NO. 2 CONTROL CIRCUIT
P0203  INJECTOR NO. 3 CONTROL CIRCUIT
P0204  INJECTOR NO. 4 CONTROL CIRCUIT
P0300  MULTIPLE CYLINDER MISFIRE
P0301  CYLINDER #1 MISFIRE
P0302  CYLINDER #2 MISFIRE
P0303  CYLINDER #3 MISFIRE
P0304  CYLINDER #4 MISFIRE
P0320  NO CRANK REFERENCE SIGNAL AT PCM
P0340  NO CAM SIGNAL AT PCM
P0351  IGNITION COIL NO. 1 PRIMARY CIRCUIT
P0352  IGNITION COIL NO. 2 PRIMARY CIRCUIT
P0420  CATALYST 1/1 EFFICIENCY FAILURE
P0441  EVAP PURGE FLOW MONITOR
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 LEAK DETECTED
P0460  FUEL LEVEL UNIT NO CHANGE OVER MILES
P0462  FUEL LEVEL SENDING UNIT VOLTS TOO LOW
P0463  FUEL LEVEL SENDING UNIT VOLTS TOO HIGH
P0500  NO VEHICLE SPEED SENSOR SIGNAL
P0508  IAC MOTOR SENSE CIRCUIT LOW
P0509  IAC MOTOR SENSE CIRCUIT HIGH
P0551  POWER STEERING SWITCH FAILURE
P0600  PCM FAILURE SPI COMMUNICATIONS
P0601  PCM INTERNAL CONTROLLER FAILURE
P0622  GENERATOR FIELD NOT SWITCHING PROPERLY
P0645  A/C CLUTCH RELAY CIRCUIT
P0703  BRAKE SWITCH SENSE CIRCUIT
P0740  TORQ CONV CLU, NO RPM DROP AT LOCKUP
P0743  TORQUE CONVERTER CLUTCH SOLENOID/TRANS RELAY CIRCUITS
P0833  CLUTCH RELEASED SWITCH CIRCUIT
P1192  INLET AIR TEMP SENSOR VOLTAGE LOW
P1193  INLET AIR TEMP SENSOR VOLTAGE HIGH
P1195  1/1 O2 SENSOR SLOW DURING CATALYST MONITOR
P1281  ENGINE IS COLD TOO LONG
P1282  FUEL PUMP RELAY CONTROL CIRCUIT
P1289  MANIFOLD TUNE VALVE CONTROL CIRCUIT
P1294  TARGET IDLE NOT REACHED
P1297  NO CHANGE IN MAP FROM START TO RUN
P1299  VACUUM LEAK FOUND (IAC FULLY SEATED)
P1388  AUTO SHUTDOWN RELAY CONTROL CIRCUIT
P1389  NO ASD RELAY OUTPUT VOLTAGE AT PCM
P1390  TIMING BELT SKIPPED 1 TOOTH OR MORE
P1391  INTERMITTENT LOSS OF CMP OR CKP
P1398  MISFIRE ADAPTIVE NUMERATOR AT LIMIT
P1486  EVAP LEAK MONITOR PINCHED HOSE FOUND
P1490  LOW SPEED FAN CONTROL RELAY CIRCUIT
P1494  LEAK DETECT PUMP SW OR MECHANICAL FAULT
P1495  LEAK DETECTION PUMP SOLENOID CIRCUIT
P1496  5-VOLT SUPPLY OUTPUT TOO LOW
P1594  CHARGING SYSTEM VOLTAGE TOO HIGH
P1595 (1) SPEED CONTROL SOLENOID CIRCUITS
P1602  PCM NOT PROGRAMMED
P1682  CHARGING SYSTEM VOLTAGE TOO LOW
P1683 (1) SPEED CONTROL POWER RELAY CIRCUIT
P1685  WRONG OR INVALID KEY MSG RECEIVED FROM SKIM
P1686  NO SKIM BUS MESSAGE RECEIVED
P1687  NO CLUSTER BUS MESSAGE
P1696  PCM FAILURE EEPROM WRITE DENIED
P1697  PCM FAILURE SRI MILE NOT STORED
P1899  PARK/NEUTRAL SWITCH STUCK IN PARK OR GEAR
(1) See CRUISE CONTROL SYSTEMS - NEON article in ACCESSORIES & EQUIPMENT.