96-02 4.0L VIN C |
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 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 |
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 |
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 |
P1133 |
Heated oxygen sensor (H02S) 1, bank 1 -insufficient switching |
Wiring, oxygen sensor heater, exhaust system leaking, H02S |
P1134 |
Heated oxygen sensor (H02S) 1, bank 1 -slow response |
Wiring, oxygen sensor heater, exhaust system leaking, H02S |
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 |
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 |
P1258 |
Engine overheating |
Cooling system, engine coolant temperature (ECT) sensor |
P1320 |
Ignition control module (ICM) -4X reference circuit, intermittent |
Wiring open circuit/short circuit to ground, ICM, ECM |
P1323 |
Ignition control module (ICM) -24X reference circuit, low frequency |
Wiring open circuit/short circuit to ground, ICM, ECM |
P1336 |
Crankshaft position sensor (CKP) -variation not learned |
Learning procedure not performed |
P1350 |
Ignition control module (lCM) -bypass line monitor circuit malfunction |
Wiring open circuit/short circuit to ground/ short circuit to positive, ICM, ECM |
P1359 |
Ignition control module (ICM) bank 1 -circuit malfunction |
Wiring open circuit/short circuit to positive. lCM, ECM |
P1360 |
Ignition control module (ICM) bank 2 -circuit malfunction |
Wiring open circuit/short circuit to positive. ICM, ECM |
P1370 |
Ignition control module (ICM) -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 ground. 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 |
ABS control module trouble code(s) stored |
P1381 |
Rough road signal -no communication from ABS CAN data bus |
Wiring open circuit, ABS system |
P1404 |
Exhaust gas recirculation (EGR) valve -stuck open |
Wiring open circuit/short circuit to positive, exhaust gas recirculation (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, exhaust gas recirculation (EGR) valve position sensor, EGR valve |
P1415 |
Secondary air injection (AIR) system |
Wiring, hoses blocked/leaking, AIR valve |
P1416 |
Secondary air injection (AIR) system |
Wiring, hoses blocked/leaking, AIR valve, AIR pump relay |
P1441 |
Evaporative emission (EVAP) system -leak detected |
Hose connection(s), EVAP cannister, EVAP canister purge valve |
P1483 |
Engine cooling system -performance |
Cooling system, engine coolant temperature (ECT) sensor, intake air temperature (IAT) sensor |
P1508 |
Idle air control (lAC) valve -rpm low |
Wiring open circuit/short circuit to ground, intake system blocked, throttle valve, lAC valve, ECM |
P1509 |
Idle air control (lAC) valve -rpm high |
Wiring open circuit/short circuit to ground, intake system blocked, throttle valve, lAC valve, ECM |
P1520 |
Park/neutral position (PNP) switch |
Wiring short circuit to ground, incorrectly adjusted |
P1524 |
Throttle position (TP) sensor -learned 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 |
P1533 |
A/C refrigerant temperature sensor -circuit malfunction low pressure side |
Wiring open circuit/short circuit to ground, A/C refrigerant temperature sensor, ECM |
P1535 |
A/C refrigerant temperature sensor -circuit malfunction high pressure side |
Wiring open circuit/short circuit to ground, A/C refrigerant temperature sensor, ECM |
P1536 |
A/C system -ECT over temperature |
Cooling system |
P1537 |
A/C request circuit -voltage low |
Wiring open circuit/short circuit to ground, A/C refrigerant low pressure switch, A/C control module, ECM |
P1538 |
A/C request circuit -voltage high |
Wiring open circuit/short circuit to positive, A/C control module, ECM |
P1540 |
A/C system -high pressure |
Wiring open circuit, A/C refrigerant high pressure switch, A/C system, ECM |
P1542 |
A/C system -high pressure/high temperature |
High ambient temperature, A/C cooling system |
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, transmission fluid pressure (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 |
Active brake control system engaged with cruise control on |
P1570 |
Cruise control -traction control system (TCS) active |
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 |
P1579 |
Transmission shifted from PIN to D/R at high throttle angle |
Driver error, wiring, transmission range (TR) switch |
P1599 |
Engine stall or near stall detected |
ECM trouble code(s) stored, mechanical fault, transmission mechanical fault |
P1602 |
CAN data bus -antilock brake system (ABS)I 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, body control module (BCM) trouble code(s) stored |
P1605 |
CAN data bus -A/C |
Wiring, A/C system trouble code(s) stored |
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 |
CAN data bus,immobilizer |
Wiring, body control module (BCM) trouble code(s) stored |
P1633 |
Engine control module (ECM) ignition supply voltage, voltage low |
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, TP sensor, MAP sensor, EGR valve position 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 refrigerant pressure sensor, fuel tank pressure (FTP) sensor, ECM |
P1640 |
Engine control module quad driver/output driver |
Wiring, ECM controlled components, ECM * |
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) solenoid -circuit malfunction |
Wiring open circuit/short circuit to ground, EVAP solenoid, 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 quad driver/output driver |
Wiring, ECM controlled components, ECM * |
P1653 |
A/C compressor clutch relay -circuit malfunction |
Wiring open circuit/short circuit to ground, supply wire, A/C compressor clutch relay, 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 |