GM GM 94-02 3.8L VIN L/K/1 Regal Trouble Code Info

GM

94-02 3.8L VIN L/K/1
Scan Code Fault Location Probable Cause
P0000-P0999 Refer to OBD-II generic trouble code table
P1106 Manifold absolute pressure (MAP) sensor – circuit intermittent – voltage high Wiring open circuit/short circuit to positive
P1107 Manifold absolute pressure (MAP) sensor – circuit intermittent – voltage low Wiring open circuit/short circuit to ground
P1111 Intake air temperature (IAT) sensor – circuit intermittent – voltage high Wiring open circuit/short circuit to positive, ground lead defective
P1112 Intake air temperature (IAT) sensor – circuit intermittent – voltage low Wiring short circuit to ground
P1114 Engine coolant temperature (ECT) sensor – circuit malfunction – voltage low Wiring short circuit to ground
P1115 Engine coolant temperature (ECT) sensor – circuit malfunction – voltage high Wiring open circuit/short circuit to positive, ground lead defective
P1121 Throttle position (TP) sensor – circuit malfunction – voltage high Wiring open circuit/short circuit to positive, ground lead defective
P1122 Throttle position (TP) sensor – circuit malfunction – voltage low Wiring open circuit/short circuit to ground
P1133 Heated oxygen sensor (HO2S) 1 – insufficient switching Wiring open circuit/short circuit to ground,exhaust system leaking, HO2S
P1134 Heated oxygen sensor (HO2S) 1 – slow response Wiring open circuit/short circuit to ground,exhaust system leaking, HO2S
P1171 Fuel system – lean during acceleration Fuel filter, fuel pump, HO2S, injectors
P1189 Engine oil pressure warning lamp switch – circuit malfunction Wiring, engine oil pressure warning lamp switch, ECM
P1200 Injector(s) – circuit malfunction Wiring open circuit/short circuit to ground/short circuit to positive, ECM
P1257 Boost control problem Wiring short circuit to ground, hoses blocked/leaking, boost bypass actuator, boost control solenoid, ECM
P1260 Fuel pump speed relay – circuit malfunction Wiring open circuit/short circuit to ground/short circuit to positive, fuel pump relay, fuel pump control module, ECM
P1336 Crankshaft position sensor (CKP) – variation not learned Learning procedure not performed
P1350 Ignition control module (ICM) – elctronic spark timing (EST)/ignition control (IC)/bypass circuit malfunction Wiring open circuit/short circuit to ground/short circuit to positive, ICM, ECM
P1351 Ignition control module, ignition control (IC) circuit – voltage high Wiring open circuit, ICM, ECM
P1352 Ignition control circuit – bypass line – voltage high Wiring open circuit, ICM, ECM
P1361 Ignition control module (ICM) – elctronic spark timing (EST)/ignition control (IC)/bypass circuit malfunction Wiring open circuit/short circuit to ground/short circuit to positive, ICM, ECM
P1362 Ignition control circuit, bypass line – voltage low Wiring short circuit to ground/short circuit to positive, ICM, ECM
P1374 Crankshaft position (CKP) Wiring open circuit/short circuit to ground/short circuit to positive, wiring routed near spark plug wires, ignition coils arcing/tracking, ICM, ECM
P1380 Rough road signal – signal error ABS control module trouble code(s) stored
P1381 Rough road signal – no communication from antilock brake system (ABS) CAN data bus Wiring open circuit, ABS system
P1403 Exhaust gas recirculation (EGR) valve solenoid 1 Wiring open circuit/short circuit to ground, exhaust system blocked, EGR valve, ECM
P1404 (Model Years 1998 – 2002) Exhaust gas recirculation (EGR) valve -stuck open Wiring open circuit/short circuit to positive, exhaust system blocked, EGR valve, ECM
P1405 Exhaust gas recirculation (EGR) valve solenoid 3 Wiring open circuit/short circuit to ground, exhaust system blocked, EGR valve, ECM
1406 Exhaust gas recirculation (EGR) valve position sensor – circuit malfunction Wiring open circuit/short circuit to ground/short circuit to positive, supply wire, EGR valve, ECM
P1441 Evaporative emission (EVAP) system – leak detected Wiring short circuit to ground, hose connection(s), EVAP system vacuum switch, EVAP canister purge valve, ECM
P1442 Evaporative emission (EVAP) system vacuum switch – circuit malfunction Wiring open circuit/short circuit to ground, EVAP system vacuum switch, ECM
P1483 Engine cooling system – performance Cooling system, engine coolant temperature (ECT) sensor, intake air temperature (IAT) sensor
P1520 Park/neutral position (PNP) switch Wiring short circuit to ground, incorrectly adjusted, ECM
P1530 A/C refrigerant pressure sensor – circuit malfunction A/C refrigerant pressure, wiring open circuit/short circuit to ground/short circuit to positive, A/C refrigerant pressure sensor, ECM
1531 Low A/C refrigerant charge Low A/C refrigerant charge, wiring open circuit/short circuit to ground/short circuit to positive, A/C refrigerant low pressure switch, ECM
P1546 A/C compressor clutch relay – circuit malfunction Wiring open circuit/short circuit to ground/short circuit to positive, A/C compressor clutch relay, ECM
P1550 Cruise control stepper motor, circuit malfunction Wiring open circuit/short circuit to positive, cruise control module, ECM
P1554 Cruise control status circuit Wiring short circuit to ground, cruise control module, ECM
P1558 Cruise control servo position sensor – circuit malfunction Wiring open circuit/short circuit to ground/short circuit to positive, hoses leaking, cruise control servo, cruise control cable binding
P1561 Cruise control vent solenoid Wiring open circuit/short circuit to ground/short circuit to positive, cruise control servo, ECM
P1562 Cruise control vacuum solenoid Wiring open circuit/short circuit to ground/short circuit to positive, cruise control servo, ECM
P1565 Cruise control servo position sensor Wiring open circuit/short circuit to ground/short circuit to positive, cruise control servo, ECM
P1567 Cruise control switch – circuit malfunction Wiring open circuit/short circuit to ground/short circuit to positive, cruise control switch, brake pedal vacuum valve, ECM
P1568 Cruise control servo – servo position sensor high Hose blocked, brake pedal vacuum valve, cruise control servo, cruise control cable binding
P1571 Traction control system (TCS), torque request circuit Wiring open circuit/short circuit to ground/short circuit to positive, ABS control module trouble code (s) stored, ECM
P1573 Data bus – antilock brake system (ABS)/traction control system (TCS) Wiring, ABS control module trouble codes(s) stored
P1575 Brake pedal position (BPP) switch – extended travel Wiring short circuit to positive, BPP switch, ECM
P1585 Cruise control system – inhibit output circuit Hoses blocked, brake pedal vacuum valve, cruise control servo, cruise control cable binding
P1602 CAN data bus – antilock brake system (ABS)/traction control system (TCS) Wiring, ABS control module trouble code(s) stored/td>
P1604 CAN data bus Wiring, BCM trouble code(s) stored
P1605 CAN data bus – A/C Wiring, A/C system trouble code(s) stored
P1610 CAN data bus – body control module (BCM) Wiring, BCM trouble code(s) stored
P1619 Engine oil life monitor reset switch – circuit malfunction Wiring short circuit to ground, engine oil life monitor reset switch, ECM
P1623 Engine control module (ECM) – PROM Insecure PROM, ECM
P1626 (Model Years 1994-1995) Data bus, immobilizer Wiring, BCM trouble code(s) stored
P1626 (Model Years 1996-2002) Immobilizer control module – fuel enable signal Incorrect ignition key, wiring open circuit/short circuit to ground/short circuit to positive, immobilizer control module, ECM
P1629 Immobilizer control module – fuel enable signal Incorrect ignition key, wiring open circuit/short circuit to ground/short circuit to positive, immobilizer control module, ECM
P1630 (Model Years 1994-1995) Battery voltage – high/low Wiring, alternator, ECM
P1630 (Model Years 1997-2000) Engine control module (ECM), immobilizer code learning mode Immobilizer code not programmed
P1631 Engine control module (ECM) – incorrect immobilizer code Incorrect key, immobilizer code not programmed
P1635 Sensor supply voltage – circuit A malfunction Wiring short circuit to positive, ground wiring open circuit, TP sensor, MAP sensor, EGR valve, ECM
P1639 Sensor supply voltage – circuit B malfunction Wiring short circuit to ground/positive, ground wiring open circuit, A/C refrigerant pressure sensor, ECM
P1640 Engine control module quad driver/output driver Wiring, ECM controlled components, ECM *(see below for additional information)
P1641 (Model Year 1994-1997) Malfunction indicator lamp (MIL) – circuit malfunction Wiring open circuit/short circuit to ground/short circuit to positive, MIL, supply wire, ECM
P1641 (Model Years 1998 – 2002) A/C compressor clutch relay – circuit malfunction Wiring open circuit/short circuit to positive, supply wire, A/C compressor relay, ignition main relay, ECM
P1643 Fuel pump control module – circuit malfunction Wiring open circuit/short circuit to ground/short circuit to positive, fuel pump control module, ECM
P1645 Supercharger (SC) control valve solenoid – circuit malfunction Wiring open circuit/short circuit to ground/short circuit to positive, SC control valve solenoid, ECM
P1646 Supercharger (SC) control valve solenoid – circuit malfunction Wiring open circuit/short circuit to ground/short circuit to positive, SC control valve solenoid, ECM
P1650 Engine control module, quad driver/output driver Wiring, ECM controlled components, ECM * (see below for additional information)
P1651 Engine coolant blower motor relay 1 – circuit malfunction Wiring open circuit/short circuit to ground/short circuit to positive, supply wire, engine coolant blower motor relay 1, ECM
P1652 Engine coolant blower motor relay 2 – circuit malfunction Wiring open circuit/short circuit to ground/short circuit to positive, supply wire, engine coolant blower motor relay 2, ECM
P1653 Traction control system (TCS) – delivered torque circuit Wiring open circuit/short circuit to ground/short circuit to positive, ABS control module trouble code(s) stored, ECM
P1654 A/C compressor clutch relay – circuit malfunction Wiring open circuit/short circuit to ground/short circuit to positive, supply wire, A/C compressor clutch relay, ECM
P1655 Evaporative emission (EVAP) canister purge valve – circuit malfunction Wiring open circuit/short circuit to ground/short circuit to positive, supply wire, EVAP canister purge valve, ECM
P1660 Engine control module quad driver/output driver Wiring, ECM controlled components, ECM * (see below for additional information)
P1662 Cruise control inhibit circuit – circuit malfunction Wiring open circuit/short circuit to ground, cruise control motor/actuator, cruise control module, ECM
P1663 Alternator warning lamp – circuit malfunction Wiring open circuit/short circuit to ground/short circuit to positive, supply wire, instrument panel, ECM
P1665 Evaporative emission (EVAP) canister vent valve – circuit malfunction Wiring open circuit/short circuit to ground/short circuit to positive, supply wire, EVAP canister vent valve, ECM
P1667 Fuel pump control module – circuit malfunction Wiring open circuit/short circuit to ground/short circuit to positive, supply wire, fuel pump control module, ECM, fuel pump relay
P1670 Engine control module quad driver/output driver Wiring, ECM controlled components, ECM * (see below for additional information)
P1671 Malfunction indicator lamp (MIL) – circuit malfunction Wiring open circuit/short circuit to ground/short circuit to positive, supply wire, ECM
P1672 Engine oil level warning lamp – circuit malfunction Wiring open circuit/short circuit to ground/short circuit to positive, supply wire, ECM
P1673 Engine coolant ‘hot’ warning lamp – circuit malfunction Wiring open circuit/short circuit to ground, cooling system, ECM
P1674 Tachometer – circuit malfunction Wiring open circuit/short circuit to ground/short circuit to positive, instrument panel, ECM
P1675 Evaporative emission (EVAP) canister vent valve – circuit malfunction Wiring open circuit/short circuit to ground, EVAP canister vent valve, ECM
P1676 Evaporative emission (EVAP) canister purge valve – circuit malfunction Wiring open circuit/short circuit to ground/short circuit to positive, supply wire, EVAP canister purge valve, ECM
P1689 Traction control system (TCS) – delivered torque output circuit Wiring open circuit/short circuit to ground/short circuit to positive, supply wire, ABS trouble codes stored, ECM
* Depending on model, year and equipment level, the following components may be connected to this circuit. Use of the vehicle wiring diagram is recommended to confirm which components are fitted.
A/C compressor clutch relay Exhaust gas recirculation (EGR) solenoid
A/C condenser blower motor relay Malfunction indicator lamp (MIL)
Engine coolant blower motor relay Transmission shift warning light (MT)
Engine coolant ‘hot’ warning lamp Torque converter clutch (TCC) solenoid
Evaporative emission (EVAP) canister purge Transmission shift solenoids (SS)