GM GM 96-02 4.6L VIN Y/9 Eldorado Trouble Code Info

GM

96-02 4.6L VIN Y/9
Scan Code Fault Location Probable Cause
POOOO-0999 Refer to OBD-II generic trouble code table
P1031 Heated oxygen sensor (H02S) 1, banks 1 & 2 -heater current monitor control circuit Wiring short circuit to positive, H02S, ECM
P1032 Heated oxygen sensor (H02S) 1, banks 1 & 2 -heater warm up control circuit Wiring short circuit to positive, H02S, ECM
P1106 Manifold absolute pressure (MAP) sensor -circuit intermittent -voltage high Wiring open circuit/short circuit to ground/ short circuit to positive
P1107 Manifold absolute pressure (MAP) sensor -circuit intermittent -voltage low Wiring short circuit to ground
P1108 Barometric pressure (BARO) sensor/manifold absolute pressure (MAP) sensor -comparison too high Wiring open circuit/short circuit to positive, MAP sensor, ECM
P1111 Intake air temperature (IAT) sensor -circuit intermittent -voltage high Wiring open circuit, ground lead defective
P1112 Intake air temperature (IAT) sensor -circuit intermittent -voltage low Wiring short circuit to ground
P1113 Intake air flap control actuator -circuit malfunction Wiring open circuit/short circuit to ground/ positive, intake air valve control valve, ECM
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, ground lead defective
P1120 Throttle motor position sensor 1 -circuit malfunction Wiring open circuit/short circuit to ground/ short circuit to positive, throttle control unit, ECM
P1121 Throttle position (TP) sensor -circuit malfunction -voltage high Wiring short circuit to positive, ground lead defective
P1122 Throttle position (TP) sensor -circuit malfunction -voltage low Wiring open circuit/short circuit to ground
P1125 Accelerator pedal position (APP) sensor 1/2/3 -signal malfunction Wiring, APP sensor, ECM
P1133 Heated oxygen sensor (H02S) 1, bank 1 -insufficient switching Wiring, oxygen sensor heater, exhaust system leaking, H025
P1134 Heated oxygen sensor (H02S) 1, bank 1 -slow response Wiring, oxygen sensor heater, exhaust system leaking, H025
P1139 Heated oxygen sensor (H02S) 2, bank 1 -insufficient switching Wiring, oxygen sensor heater, exhaust system leaking, H02S
P1140 Heated oxygen sensor (H02S) 2, bank 1 -slow response Wiring, oxygen sensor heater, exhaust system leaking, H02S
P1141 Heated oxygen sensor (H02S) 2, bank 1 -heater control -circuit malfunction Fuse, wiring, H02S, ECM
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
P1161 Heated oxygen sensor (H02S) 2, bank 2 – heater control -circuit malfunction Fuse, wiring, H02S, ECM
P1172 Fuel level sensors, primary and secondaryno fuel level change during fuel transfer from secondary to primary tank Wiring, secondary fuel pump/relay, fuel level sensors
P1189 Engine oil pressure warning switch -circuit malfunction Wiring open circuit, engine oil pressure warning switch, ECM
P1220 Throttle motor position sensor 2 -circuit malfunction Wiring open circuit/short circuit to ground/short circuit to positive, throttle control unit,ECM
P1221 Throttle motor position sensor 1/2 -signal variation Wiring, throttle control unit, ECM
P1258 Engine overheating Cooling system, ECT sensor
P1271 Accelerator pedal position (APP) sensor 1/2 – signal variation Wiring, APP sensor, ECM
P1275 Accelerator pedal position (APP) sensor 1 – circuit malfunction Wiring open circuit/short circuit to ground/short circuit to positive, APP sensor, ECM
P1276 Accelerator pedal position (APP) sensor 1range performance Wiring, APP sensor, ECM
P1280 Accelerator pedal position (APP) sensor 2 – circuit malfunction Wiring open circuit/short circuit to ground/short circuit to positive, 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
P1320 Ignition control module (ICM) -4X reference circuit, intermittent Wiring open circuitlshort circuit to ground, ICM, ECM
P1323 Ignition control module (ICM) -24X reference circuit, low frequency Wiring open circuitlshort circuit to ground,ICM, ECM
P1336 Crankshaft position sensor (CKP) -variation not learned Learning procedure not performed
P1345 Crankshaft position sensor (CKP)/camshaft position (CMP) sensor -signal variation CKP sensor, distributor/camshaft alignment, mechanical fault
P1350 Ignition control module (ICM) -bypass line monitor circuit malfunction Wiring open circuitlshort circuit to ground/short circuit to positive, ICM, ECM
P1351 Ignition control module (ICM) -ignition control (IC) circuit, voltage high Wiring open circuit, ICM, ECM
P1359 Ignition control module (lCM) bank 1 -circuit malfunction Wiring open circuitlshort circuit to positive,ICM, ECM
P1360 Ignition control module (ICM) bank 2 -circuit malfunction Wiring open circuit/short circuit to positive, ICM, ECM
P1361 Ignition control module (ICM) -ignition control (IC) circuit, voltage low Wiring short circuit to ground, ICM, ECM
P1370 Ignition control module (lCM) -4X reference circuit, too many pulses Wiring, electromagnetic interference, ICM
P1371 Ignition control module (ICM) -4X reference circuit, too few pulses Wiring, electromagnetic interference, ICM
P1372 Crankshaft position sensor (CKP) Wiring open circuit/short circuit to groundl short circuit to positive, CKP, ECM
P1375 Ignition control module (ICM) -24X reference circuit, voltage high Wiring open circuit/short circuit to ground/ short circuit to positive, CKP sensor(s), ICM
P1376 Ignition control module (ICM) -ground circuit Wiring open circuit/short circuit to positive, ground lead defective, ICM
P1377 Ignition control module (ICM) -cam pUlse/ 4X reference pulse Wiring open circuit/short circuit to ground, electromagnetic interference, valve timing
P1380 Rough road signal -signal error ASS control module trouble code(s) stored
P1381 Rough road signal -no communication from antilock brake system (ABS) CAN data bus Wiring open circuit, ASS system
P1404 Exhaust gas recirculation (EGR) valve -stuck open Wiring open circuit/short circuit to positive, EGR valve position sensor, EGR solenoid
P1406 Exhaust gas recirculation (EGR) valve position sensor -circuit malfunction Wiring open circuit/short circuit to ground/ short circuit to positive, EGR valve position sensor, EGR valve
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, AIR pump relay
P1441 Evaporative emission (EVAP) system -leak detected Hose connection(s), EVAP canister, EVAP canister purge valve
P1460 Misfire -low fuel level Fuel level low, misfire
P1483 Engine cooling system -performance Cooling system, ECT sensor, IAT sensor
P1501 Immobilizer control module -circuit malfunction Wiring open circuit/short circuit to ground/ short circuit to positive, MIL circuit
P1502 Immobilizer control module -fuel enable signal Wiring open circuit/short circuit to ground/ short circuit to positive, immobilizer control module, ECM
P1503 Immobilizer control module -fuel enable signal Incorrect ignition key, wiring open circuit/ short circuit to ground/short circuit to positive, immobilizer control module, 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
P1510 Throttle position motor -throttle limitation active Wiring open circuit/short circuit to ground/ short circuit to positive, throttle control unit, ECM
P1511 Throttle position motor -limp home system performance Throttle valve tight/sticking, TP sensor, wiring, throttle control unit, ECM
P1514 Intake air flow -excessive flow Throttle control unit, MAP sensor, CMP sensor signal, ECM
P1515 Throttle command/actual throttle position -signal variation Wiring, throttle valve sticking, throttle control unit, ECM
P1516 Throttle position motor -position performance Throttle valve tight/sticking, TP sensor, wiring, throttle control unit, ECM
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 position motor -circuit malfunction Wiring open circuit/short circuit to ground, throttle control unit, ECM
P1520 Park/neutral position (PNP) switch/ transmission range (TR) switch Wiring short circuit to ground, incorrectly adjusted, PNP switchlTR switch, ECM
P1523 Throttle position motor -closed position performance Throttle valve tight/sticking, TP sensor, wiring open circuit/short circuit to ground, throttle control unit, ECM
P1524 Throttle position (TP) sensor -leamed closed throttle angle Accelerator cable adjustment, throttle valve tight/sticking, throttle valve incorrectly adjusted
P1526 Minimum throttle position not learned Initial learn procedure not carried out
P1527 Transmission range (TR) switch/transmission fluid pressure (TFP) switch -signal variation Incorrectly adjusted TR switch, wiring open circuit/short circuit to ground, TR switch, TFP switch, ECM
P1530 Throttle position motor -circuit malfunction Wiring open circuit/short circuit to ground, TP sensor, throttle control unit, ECM
P1545 AlC compressor clutch relay -circuit malfunction Wiring open circuit/short circuit to ground, AlC compressor clutch relay, ECM
P1554 Cruise control status circuit -high voltage Wiring open circuit/short circuit to ground, cruise control module, ECM
P1560 Cruise control -transmission not in drive Driver error, TFP switch circuit
P1564 Cruise control -acceleration too high Slippery road conditions
P1566 Cruise control -engine speed too high Slippery road conditions, transmission mechanical fault
P1567 Cruise control -active brake control system active, cruise control disabled Active brake control system engaged with cruise control on
P1570 Cruise control -traction control system (TCS) active, cruise control disabled Slippery road surface
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
P1574 Brake pedal position switch (BPP) -voltage high Wiring, ABS
P1575 Brake pedal position switch (BPP) -extended travel contacts -voltage high Wiring, ABS
P1576 Brake boost vacuum sensor -voltage high Wiring open circuit/short circuit to positive, ECM
P1577 Brake boost vacuum sensor -voltage low Wiring open circuit/short circuit to ground, ECM
P1578 Brake boost vacuum sensor -vacuum low Wiring open circuit/short circuit to ground, vacuum leak, ECM
P1579 Transmission shifted from PIN to D/R at high throttle angle Driver error, Wiring, TR switch
P1585 Cruise control system -inhibit output circuit Wiring open circuit/short circuit to ground/ short circuit to positive, supply wire, cruise control motor/actuator, ECM
P1599 Engine stall or near stall detected ECM trouble code(s) stored, mechanical fault, transmission mechanical fault
P1600 Engine control module (ECM) -memory reset ECM
P1601 Engine control module (ECM) -temperature high Module cooling fan, ECM
P1602 CAN data bus -antilock brake system (ABS)/ traction control system (TCS) Wiring, ABS control module trouble code(s) stored
P1603 CAN data bus -sensing/diagnostic module (SDM) Wiring
P1604 CAN data bus -instrument panel Wiring, BCM trouble code(s) stored
P1605 CAN data bus -NC Wiring, AlC system trouble code(s) stored
P1610 CAN data bus -body control module (BCM) Wiring, BCM trouble code(s) stored
P1611 Suspension control module Wiring open circuit/short circuit to ground/ short circuit to positive, suspension control module, ECM
P1612 Instrumentation control module Wiring open circuit/short circuit to ground/ short circuit to positive, instrumentation control module, ECM
P1613 Dash integration module, data bus Wiring open circuit/short circuit to ground/ short circuit to positive, dash integration module, ECM
P1614 Rear integration module, data bus Wiring open circuit/short circuit to ground/ short circuit to positive, rear integration module, ECM
P1615 Immobilizer control module, data bus Wiring open circuit/short circuit to ground/ short circuit to positive, immobilizer control module, ECM
P1617 Engine oil level switch -circuit malfunction Wiring short circuit to ground, engine oil level, ECM
P1621 Engine control module (ECM) -memory performance ECM
P1624 Customer snapshot function operated ECM trouble codes stored
P1626 Immobilizer control module Wiring, SCM trouble code(s) stored
P1627 Engine control module (ECM) -memory performance ECM
P1630 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
P1632 Engine control module (ECM), fuel disable signal Fuses, SCM, immobilizer code
P1633 Engine control module (ECM), ignition supply voltage Fuse, wiring open circuit, ECM
P1634 Engine control module (ECM) -ignition supply voltage -voltage low Wiring open circuit, ECM
P1635 Sensor supply voltage -circuit A malfunction Wiring short circuit to ground/positive, ground wiring open circuit, EGR valve position sensor, MAP sensor, TP sensor, ECM
P1637 Alternator ‘L’ terminal -circuit malfunction Wiring open circuit/short circuit to ground, alternator, battery temperature sensor, ECM
P1638 Alternator ‘F’ terminal -circuit malfunction Wiring open circuit/short circuit to ground, alternator, ECM
P1639 Sensor supply voltage -circuit B malfunction Wiring short circuit to ground/positive, ground wiring open circuit, A/C pressure sensor (DeVille/Seville), FTP sensor, ECM
P1640 Engine control module, output driver 1 -supply voltage high Wiring, loose alternator connection, alternator
P1641 Malfunction indicator lamp (MIL) -circuit malfunction Wiring open circuit/short circuit to ground, MIL, supply wire, ECM
P1642 Vehicle speed sensor (VSS) -circuit malfunction Wiring open circuit/short circuit to ground/ short circuit to positive, VSS, ECM
P1644 Delivered torque -circuit malfunction Wiring open circuit/short circuit to ground/ short circuit to positive, ABS trouble codes stored, ECM
P1645 Evaporative emission (EVAP) canister purge valve -circuit malfunction Wiring open circuit/short circuit to ground, EVAP canister purge valve, ECM
P1646 Evaporative emission (EVAP) canister purge valve -circuit malfunction Wiring open circuit/short circuit to ground, EVAP canister purge valve, ECM
P1650 Engine control module, output driver 2 -supply voltage high Wiring, loose alternator connection, alternator
P1652 Suspension control module -engine control module (ECM) acceleration/braking signal malfunction Wiring open circuit/short circuit to ground/ short circuit to positive, suspension control module, ECM
P1654 Cruise control disable circuit -circuit malfunction Wiring open circuit/short circuit to ground/ short circuit to positive, cruise control module, ECM
P1660 Engine coolant blower motor relay(s) -circuit malfunction Wiring open circuit/short circuit to ground, engine coolant blower motor relay(s), ECM
P1662 Cruise control indicator lamp -circuit malfunction Fuse, wiring, cruise control indicator lamp, ECM
P1680 Engine control module (ECM) -memory performance ECM
P1681 Engine control module (ECM) -memory performance ECM
P1683 Engine control module (ECM) -memory performance ECM
P1700 Transmission control module (TCM) -MIL request circuit malfunction OBD II TCM trouble codes stored
P1701 Transmission control module (TCM) -MIL request circuit Wiring open circuit/short circuit to ground/ positive, ECM
P1740 Transmission control module (TCM) -torque control circuit Wiring open circuit/short circuit to ground/ positive, TCM, ECM
P1845 Torque limit management Other trouble codes stored, ECM