GM GM 96-02 Grand Prix Trouble Code Info

GM

Various Models
Scan Code Fault Location Probable Cause
POOOO-P0999 Refer to OBD-II trouble code table
P1106 Manifold absolute pressure (MAP) sensor -voltage high, intermittent  Wiring open circuit/short circuit to positive, poor connections
P1107 Manifold absolute pressure (MAP) sensor -voltage low, intermittent  Wiring short circuit to ground, poor connections
P1111 Intake air temperature (IAT) sensor -voltage high, intermittent  Wiring open circuit/short to positive, poor connections
P1112 Intake air temperature (IAT) sensor -voltage low, intermittent Wiring short circuit to ground
P1114 Engine coolant temperature (ECT) sensor -voltage low, intermittent  Wiring short circuit to ground, poor connections ,
P1115 Engine coolant temperature (ECT) sensor -voltage high, intermittent Wiring open circuit/short to positive, poor connections
P1120 Throttle motor position sensor 1 -circuit malfunction  Wiring, throttle control module
P1121 Throttle position (TP) sensor -voltage high, intermittent Wiring open circuit/short to positive, poor connections
P1122 Throttle position (TP) sensor -voltage low, intermittent  Wiring open circuit/short to ground, poor connections
P1125 Accelerator pedal position (APP) sensor 1/2/ 3 -signal malfunction  Wiring, APP sensor, ECM
P1133 Oxygen sensor (02S)/heated oxygen sensor (H02S) 1, bank 1 -insufficient SWitching  Wiring, exhaust system leaking, 02S/H02S
P1134 Heated oxygen sensor (H02S) 1, bank 1 -slow response  Wiring, oxygen sensor heater, exhaust system leaking, H02S
P1137 Heated oxygen sensor (H02S) 2, bank 1 -voltage low  Wiring, exhaust system leaking, H02S
P1138 Heated oxygen sensor (H02S) 2, bank 1 -voltage high  Wiring, H02S
P1153 Heated oxygen sensor (H02S) 1, bank 2 -insufficient switching  Wiring, oxygen sensor heater, exhaust system leaking, H02S
P1154 Heated oxygen sensor (H02S) 1, bank 2 -slow response  Wiring, oxygen sensor heater, exhaust system leaking, H02S
P1171 Fuel system -lean during acceleration  Fuel filter, fuel pump, H02S, injectors
P1200 Injectors – circuit malfunction  Wiring open circuit/short circuit to ground/short circuit to positive, injectors, ECM
P1220 Throttle motor position sensor 2 – circuit malfunction Wiring, throttle control module
P1221 Throttle motor position sensor 1/2 -signal variation Wiring, throttle control module
P1222 Injector control, circuit monitor -malfunction Injector, Wiring
P1258 Engine overheating Cooling system, ECT sensor
P1260 Fuel pump, control signal – circuit malfunction Wiring, fuel pump control module, ECM
P1271 Accelerator pedal position (APP) sensor 1/2 -signal variation Wiring, APP sensor, ECM
P1272 Accelerator pedal position (APP) sensor 2/3 -signal variation Wiring, APP sensor, ECM
P1273 Accelerator pedal position (APP) sensor 1/3 -signal variation Wiring, APP sensor, ECM
P1275 Accelerator pedal position (APP) sensor 1 -circuit malfunction Wiring, APP sensor, ECM
P1276 Accelerator pedal position (APP) sensor 1 -range performance Wiring, APP sensor, ECM
P1280 Accelerator pedal position (APP) sensor 2 -circuit malfunction Wiring, APP sensor, ECM
P1281 Accelerator pedal position (APP) sensor 2 -range performance Wiring, APP sensor, ECM
P1285 Accelerator pedal position (APP) sensor 3 -circuit malfunction Wiring, APP sensor, ECM
P1286 Accelerator pedal position (APP) sensor 3 -range performance Wiring, APP sensor, ECM
P1336 Crankshaft position sensor (CKP) -variation not learned Learning procedure not performed
P1350 Ignition control system, bypass circuit -circuit malfunction Wiring, poor connections, ICM, ECM
P1351 Ignition control system, coil -voltage high Wiring open circuit, ICM, ECM
P1352 Ignition control system, bypass circuit -voltage high Wiring open circuit, ICM, ECM
P1361 Ignition control system, ignition control (IC) circuit -voltage low Wiring, circuit short circuit to ground, poor connections, ICM, ECM
P1362 Ignition control, bypass circuit -voltage low Wiring short circuit to ground, ICM, ECM
P1371 Ignition control reference signal, low/high resolution -low signal lost Wiring,ICM
P1374 Crankshaft position sensor (CKP), high to low resolution frequency -signal variation Wiring, wiring routed near spark plug wires, ignition coils arcing/tracking, ICM, ECM
P1380 Antilock brake system (ABS)/traction control system (TCS), rough road signal to engine control module (ECM) -malfunction ABS trouble code(s) stored
P1381 Antilock brake system (ABS)/traction control system (TCS), rough road signal to engine control module (ECM) -no communication Wiring, poor connections, ABS
P1404 Exhaust gas recirculation (EGR) valve -not fully closing Wiring, poor connections, EGR valve position sensor, EGR solenoid
P1406 Exhaust gas recirculation (EGR) valve position sensor -range performance Wiring, EGR valve tight/sticking, EGR valve position sensor
P1415 Secondary air injection (AIR) system, bank 1 Wiring, hoses blocked/leaking, AIR valve
P1416 Secondary air injection (AIR) system, bank 2 Wiring, hoses blocked/leaking, AIR valve
P1441 Evaporative emission (EVAP) system -leak detected Hose connection(s), EVAP canister, EVAP canister purge valve
P1442 Evaporative emission (EVAP) system vacuum switch -circuit malfunction Hoses blocked/leaking, wiring, EVAP canister, ECM
P1483 Engine cooling system -performance Wiring, poor connections, BARO sensor, ECM
P1508 Idle air control (lAC) valve -low rpm Wiring open circuit/short circuit to ground/ short circuit to positive, lAC valve, throttle valve tight/sticking
P1509 Idle air control (lAC) valve -high rpm Wiring open circuit/short circuit to ground/ short circuit to positive, lAC valve, throttle valve tight/sticking
P1514 Throttle control unit, intake air flow -excessive Throttle control unit, MAP sensor, CMP sensor signal, ECM
P1515 Throttle command/actual throttle position -signal variation Wiring, throttle valve sticking, throttle control module
P1516 Throttle command/actual throttle position -signal variation Wiring, throttle valve sticking, throttle control module
P1517 Throttle control module -malfunction Throttle control module
P1518 Throttle control module/engine control module (ECM) -communication malfunction Wiring, throttle control module, ECM
P1519 Throttle motor position sensor 1 -signal malfunction Throttle control module
P1523 Throttle control unit, closed throttle position -performance Throttle valve movement restricted, throttls control unit
P1532 A/C refrigerant temperature sensor -voltage low Wiring open circuit/short circuit to ground, A/C refrigerant temperature sensor, ECM
P1533 A/C refrigerant temperature sensor -voltage high Wiring open circuit/short circuit to ground, A/C refrigerant temperature sensor, ECM
P1539 A/C compressor clutch relay -voltage high Wiring, A/C compressor clutch relay, ECM
P1543 A/C system -performance Refrigerant low, wiring, A/C refrigerant pressure sensor, A/C evaporator temperature sensor, ECM
P1545 A/C compressor clutch relay -voltage low Wiring, A/C compressor clutch relay, ECM
P1546 A/C compressor clutch relay -circuit malfunction Wiring, A/C compressor clutch relay, ECM
P1554 Cruise control status circuit -high voltage Wiring open circuit/short circuit to ground, cruise control module, ECM
P1571 Traction control system (TCS), torque request signal -malfunction Wiring, poor connections, ABS/TCS
P1572 Traction control system (TCS), active signal -malfunction Wiring short to ground, ABS/TCS, ECM
P1573 Engine control module (ECM), antilock brake system (ABS)/traction control system (TCS) communication – malfunction Wiring, poor connections, ABS control module, ECM
P1574 Brake pedal position switch (BPP), voltage high Wiring, ABS
P1585 Cruise control system, inhibit output circuit Wiring, poor connections, cruise control motor/actuator, ECM
P1586 Cruise control system, brake switch 2 -circuit malfunction Wiring, poor connections, BPP switch
P1600 Engine control module (ECM) -malfunction ECM
P1601 CAN data bus, engine control module (ECM)/ antilock brake system (ABS)/traction control system (TCS)/instrumentation control modulel diagnostic control module -some communication lost Wiring, poor connections, ECM, ABS/TCS, diagnostic control module, instrumentation control module
P1621 Engine control module (ECM) -malfunction ECM
P1626 Engine control module (ECM) -fuel enable signal lost Wiring, poor connections, immobilizer control module, ECM
P1627 Engine control module (ECM) -malfunction ECM
P1629 Engine control module (ECM) -fuel enable signal not received Incorrect ignition key, wiring, poor connections, immobilizer control module, ECM
P1630 Engine control module (ECM), immobilizer code -learning mode ECM immobilizer code programming not completed
P1631 Engine control module (ECM) -incorrect immobilizer code Incorrect key, immobilizer code not programmed
P1632 Engine control module (ECM) -fuel disable signal received Fuses, SCM, immobilizer code
P1635 Engine control module (ECM), sensor supply voltage -circuit malfunction Wiring, poor connections, TP sensor, MAP sensor, EGR valve position sensor, FTP sensor, ECM
P1637 Alternator warning lamp, control signal-circuit malfunction Wiring, instrument panel, ECM
P1639 Engine control module (ECM), sensor supply voltage -circuit malfunction Wiring, poor connections, AlC refrigerant pressure sensor, ECM
P1640 Engine control module (ECM), quad driver/output driver – circuit malfunction Wiring, ECM controlled components, ECM
P1641 (1996-1997) Malfunction indicator lamp (MIL) – circuit malfunction Wiring, poor connections, MIL, ECM
P1641 (1998-2002) A/C compressor clutch relay – circuit malfunction Wiring open circuit/short circuit to ground, A/C compressor clutch relay, ECM
P1642 Engine oil change warning lamp – circuit malfunction Wiring, ECM
P1642 (1996 3.4L) Secondary air injection (AIR) pump relay – circuit malfunction Wiring, AIR pump relay, ECM
P1643 Fuel pump, control signal – circuit malfunction Wiring, fuel pump control module, ECM
P1644 Traction control system (TCS), delivered torque signal -malfunction Wiring, poor connections, ECM
P1645 Supercharger (SC) bypass valve, control signal – circuit malfunction Wiring, SC bypass valve, ECM
P1650 Engine control module (ECM), quad driver/output driver – circuit malfunction Wiring, ECM controlled components, ECM
P1651 Engine coolant blower motor relay 1 -circuit malfunction Wiring, engine coolant blower motor relay, ECM
P1652 Engine coolant blower motor relay 2 & 3 – circuit malfunction Wiring, engine coolant blower motor relay(s), ECM
P1653 (1998) Fuel gauge, control signal -circuit malfunction Wiring, ECM
P1653 (1999-2002) Engine oil level ‘low’ warning lamp, control signal – circuit malfunction Wiring, ECM
P1653 (1997 3.8L) Traction control system (TCS), delivered torque signal – malfunction Wiring, poor connections, ECM
P1654 A/C compressor clutch relay -circuit malfunction Wiring open circuit/short circuit to ground, A/C compressor clutch relay, ECM
P1655 Evaporative emission (EVAP) canister purge valve -circuit malfunction Wiring open circuit/short circuit to ground, EVAP canister vent valve, ECM
P1657 Skip shift solenoid -circuit malfunction Wiring, skip shift solenoid, ECM
P1660 Engine control module (ECM), quad driver/output driver – circuit malfunction Wiring, ECM controlled components, ECM
P1661 Malfunction indicator lamp (MIL) -circuit malfunction Wiring, MIL, ECM
P1662 Cruise control, inhibit output circuit -malfunction Wiring open circuit/short circuit to ground, cru.ise control motor/actuator, cruise control module, ECM
P1663 Alternator warning lamp, control signal -circuit malfunction Wiring, instrument panel, ECM
P1664 Skip shift warning lamp-circuit malfunction Wiring, skip shift warning lamp, ECM
P1665 Evaporative emission (EVAP) canister vent valve -circuit malfunction Wiring open circuit/short circuit to ground, EVAP canister vent valve, ECM
P1667 Fuel pump, control signal – circuit malfunction Wiring, fuel pump control module, ECM
P1670 Engine control module (ECM), quad driver/output driver – circuit malfunction Wiring, ECM controlled components, ECM
P1671 Malfunction indicator lamp (MIL) -circuit malfunction Wiring open circuit/short circuit to ground/ short circuit to positive, MIL, ECM
P1672 Engine oil level ‘low’ warning lamp, control signal -circuit malfunction Wiring short circuit to ground, engine oil level, ECM
P1673 Engine coolant ‘hot’ warning lamp, control signal – circuit malfunction Wiring, instrument panel, cooling system, ECM
P1676 Evaporative emission (EVAP) canister purge valve -circuit malfunction Wiring open circuit/short circuit to ground, EVAP canister purge valve, ECM
P1680 Engine control module (ECM) -malfunction ECM
P1681 Engine control module (ECM) -malfunction ECM
P1683 Engine control module (ECM) -malfunction ECM
P1689 Traction control system (TCS), delivered torque signal -malfunction Wiring, poor connections, ECM
P1810 Transmission gear pressure switch, signal -circuit malfunction Wiring open circuit/short circuit to ground, reverse/D1/D2/D3/D4 gear pressure switch(es), ECM
P1810 Transmission fluid pressure (TFP) switch – manual valve position Fluid level low, wiring, selector lever linkage incorrectly adjusted, ECM
P1811 Shift time too long – adaption limit reached Fluid level low, transmission mechanical fault
P1814 Torque converter clutch (TCC) – over-stressed Fluid level low, fluid condition, transmission mechanical fault
P1860 Torque converter clutch (TCC) solenoid, pulse width modulation (PWM) -circuit malfunction Wiring open circuit/short circuit to ground, TCC solenoid, ECM
P1870 Torque converter clutch (TCC) -slip speed excessive Transmission fluid level, wiring, TCC solenoid, ECM
P1887 Torque converter clutch (TCC) release switch – circuit malfunction Wiring open circuit, TCC solenoid release switch, ECM
U1016 CAN data bus, engine control module (ECM)/antilock brake system (ABS)/traction control system (TCS)/instrumentation control module/diagnostic control module – loss of serial communication Wiring, poor connections, ECM, ABS/TCS, diagnostic control module, instrumentation control module