GM GM 94-95 3.8L VIN L Trouble Code Info

GM

94-95 3.8L VIN L
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
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
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
P1171 Fuel system -lean during acceleration Fuel filter, fuel pump, H02S, injectors
P1189 Engine oil pressure warning lamp switch – circuit malfunction Wiring, engine oil pressure warning lamp switch
P1200 Injectors – circuit malfunction Wiring open circuit/short circuit to ground/short circuit to positive, injectors, ECM
P1257 Supercharger (SC), boost – too high Supercharger (SC) bypass valve hoses blocked/leaking/interchanged/not connected, wiring short circuit to ground, supercharger (SC) bypass valve solenoid, 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
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
P1403 Exhaust gas recirculation (EGR) solenoid 1 – circuit malfunction Wiring, EGR valve, ECM
P1404 Exhaust gas recirculation (EGR) solenoid 2 – circuit malfunction Wiring, EGR valve, ECM
P1405 Exhaust gas recirculation (EGR) solenoid 3 – circuit malfunction Wiring, EGR valve, ECM
P1406 Exhaust gas recirculation (EGR) valve position sensor -range performance Wiring, EGR valve tight/sticking, EGR valve position sensor
P1441 Evaporative emission (EVAP) system -leak detected Hose connection(s), EVAP canister, EVAP canister purge valve
P1483 Engine cooling system – performance Cooling system, engine coolant temperature (ECT) sensor, intake air temperature (IAT) sensor
P1520 Park/neutral position (PNP) switch -circuit malfunction Wiring short circuit to ground, PNP switch incorrectly adjusted
P1530 A/C refrigerant pressure sensor/switch – circuit malfunction Wiring, A/C refrigerant pressure sensor/switch, ECM
P1531 A/C refrigerant pressure sensor -voltage low Incorrect refrigerant charge, wiring, A/C refrigerant pressure sensor, ECM
P1546 A/C compressor clutch relay -circuit malfunction Wiring, A/C compressor clutch relay, ECM
P1550 Cruise control system, motor actuator – circuit malfunction Wiring, poor connections, cruise control motor/actuator, ECM
P1554 Cruise control status circuit -high voltage Wiring open circuit/short circuit to ground, cruise control module, ECM
P1558 Cruise control system – performance low Wiring, poor connections, accelerator cable sticking
P1561 Cruise control, vent solenoid – circuit malfunction Wiring, solenoid valve
P1562 Cruise control, vacuum solenoid – circuit malfunction Wiring, solenoid valve
P1565 Cruise control servo position – circuit malfunction Wiring, poolr connections, servo position sensor
P1567 Cruise control master switch – circuit malfunction Wiring, poor connections, cruise control master switch
P1568 Cruise control system – performance high Wiring, poor connections, accelerator cable sticking
P1571 Traction control system (TCS), torque request signal -malfunction Wiring, poor connections, ABS/TCS
P1573 Engine control module (ECM), ABS/TCS communication -malfunction Wiring, poor connections, ABS control module, ECM
P1575 Brake pedal position switch (BPP), extended travel contacts -voltage high Wiring, ABS
P1585 Cruise control system, inhibit output circuit Wiring, poor connections, cruise control motor/actuator, ECM
P1599 Cruise control system – engine management has operated in limited power mode Accelerator cable sticking, brake vacuum release valve, cruise control actuator
P1600 Engine control module (ECM) -malfunction ECM
P1601 CAN data bus, engine control module (ECM)I 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
P1602 Engine control module (ECM) to antilock brake system (ABS)/traction control system (TCS), CAN data bus -communication failure Wiring, poor connections, ABS control module
P1610 CAN data bus, engine control module (ECM) to body control module (BCM) – communication failure Wiring, poor connections
P1619 Engine oil life monitor reset switch – circuit malfunction Wiring short circuit to ground, engine oil life monitor reset switch, ECM
P1621 Engine control module (ECM) -memory performance ECM
P1623 Engine control module (ECM), PROM -malfunction Poor connections, incorrect programming, 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 System Voltage – high/low Wiring, battery, alternator
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
P1639 Engine control module (ECM), sensor supply voltage -circuit malfunction Wiring, poor connections, fuel tank level sensor, ECM
P1640 Engine control module (ECM), quad driver/output driver – circuit malfunction Wiring, ECM controlled components, ECM
P1641 Malfunction indicator lamp (MIL) – circuit malfunction Wiring, poor connections, MIL, 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 bypass valve, control signal – circuit malfunction Wiring, SC bypass valve, ECM
P1650 Engine control module (ECM), quad drive/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 Traction control system (TCS), delivered torque signal – malfunction Wiring, poor connections, ECM
P1654 AC 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
P1660 Engine control module (ECM), quad driver/output driver – circuit malfunction Wiring, ECM controlled components, ECM
P1662 Cruise control, inhibit output circuit -malfunction Wiring open circuit/short circuit to ground, cruise control motor/actuator, cruise control module, ECM
P1663 Alternator warning lamp, control signal -circuit malfunction Wiring, instrument panel, 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, reverse inhibit solenoid, 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
P1675 Evaporative emission (EVAP) canister vent valve – circuit malfunction Wiring, poor connection, EVAP canister vent valve, 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 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
P1819 Transmission range (TR) switch, signals ‘A/B/C & P’ – signal variation Wiring, TR switch
P1820 Transmission range (TR) switch, signal ‘A’ – voltage low Wiring short to ground, TR switch
P1822 Transmission range (TR) switch, signal ‘B’ – voltage high Wiring short to ground, TR switch
P1823 Transmission range (TR) switch, signal ‘P’ – voltage low Wiring short to ground, TR switch
P1825 Transmission range (TR) switch, signals ‘A/B/C & P’ – incorrect signal Wiring, TR switch
P1826 Transmission range (TR) switch, signals ‘C’ – voltage high Wiring, TR switch
P1860 Torque converter clutch (TCC) solenoid – circuit malfunction Wiring open circuit/short circuit to ground, TCC solenoid, ECM
P1887 Torque converter clutch (TCC) release switch – circuit malfunction Wiring open circuit, TCC solenoid release switch, ECM
U1000 CAN data bus -communication malfunction Wiring, BCM, ECM, instrumentation control module, SOM
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
U1254 CAN data bus – loss of serial communication Wiring, BCM, ECM, instrumentation control module, SDM
U1255 CAN data bus – communication malfunction Wiring, BCM, ECM, instrumentation control module, SDM
U1300 CAN data bus – signal low Wiring
U1301 CAN data bus -signal high Wiring
U1305 CAN data bus -signal high or low Wiring