| Model | Year | Engine identification | System |
|---|---|---|---|
| Aspire 1.3L | 1996-97 | VIN position 8 = H | Ford EEC-V |
| Contour 2.0/2.5L | 1996-00 | VIN position 8 = L/3 | Ford EEC-V |
| Crown Victoria 4.6L SOHC | 1995-02 | VIN position 8 = W | Ford EEC-V |
| Escort 1.8/1.9/2.0L SOHC/DOHC | 1996-02 | VIN position 8 = J/P/3/8 | Ford EEC-V |
| Focus 2.0L SOHC/DOHC | 2000-02 | VIN position 8 = P/3 | Ford EEC-V |
| Mustang/GT/Cobra 3.8/4.6L | 1994-02 | VIN position 8 = V/W/X/4 | Ford EEC-V |
| Probe 2.0/2.5L | 1996-97 | VIN position 8 = A/B | Ford EEC-V |
| Taurus 3.0L/24V | 1996-02 | VIN position 8 = U/S/1/2 | Ford EEC-V |
| Taurus 3.4L SHO | 1996-99 | VIN position 8 = N | Ford EEC-V |
| Thunderbird 3.8/4.6L | 1994-97 | VIN position 8 = W/4 | Ford EEC-V |
General information
- Malfunction indicator lamp (MIL) will illuminate or flash if certain faults are recorded.
- ECM operates in backup mode if sensors fail, to enable vehicle to be driven to repair shop.
Accessing
• Trouble codes can only be displayed by using a Scan Tool connected to the data link connector (DLC):Erasing
• Trouble codes can only be erased by using a Scan Tool connected to the data link connector (DLC).
Trouble code identification
| Scan code | Fault location | Probable cause |
| PO, P2, UO | Refer to OBD-II trouble code tables | – |
| P1000 | System readiness test not complete | – |
| P1001 | Self-test | – |
| P1100 | Mass air flow (MAF) sensor -circuit intermittent | Wiring, MAF sensor |
| P1101 | Mass air flow (MAF) sensor -signal malfunction | Wiring, battery, MAF sensor, ECM |
| P1109 | Intake air temperature (lAT) sensor 2 -circuit intermittent | Wiring, IAT sensor, ECM |
| P1112 | Intake air temperature (IAT) -circuit intermittent | Wiring, IAT sensor, ECM |
| P1114 | Intake air temperature (IAT) sensor 2· -low input | Wiring short circuit to ground, IAT sensor, ECM |
| P1115 | Intake air temperature (IAT) sensor 2 -high input | Wiring, IAT sensor, ECM |
| P1116 | Engine coolant temperature (EeT) sensor signalmalfunction | Wiring, coolant thermostat, cooling system, ECT sensor, ECM |
| P1117 | Engine coolant temperature (EeT) sensor circuitintermittent | Wiring, ECT sensor, cooling system, ECM |
| P1120 | Throttle position (TP) sensor -signal malfunction, low | Wiring, TP sensor |
| P1121 | Throttle position (TP) sensor -inconsistent with mass air flow (MAF) sensor signal | Wiring, MAF sensor, TP sensor, air leak |
| P1124 | Throttle position (TP) sensor -signal malfunction | Mechanical fault, TP sensor, ECM |
| P1125 | Throttle position (TP) sensor -circuit intermittent | Wiring, TP sensor |
| P1127 | Self test not completed -heated oxygen sensor (H02S), not tested | Engine not running long enough prior to self-test |
| P1128 | Heated oxygen sensor (H02S) 1, bank 1/bank 2 -interchanged | Wiring, connectors swapped |
| P1129 | Heated oxygen sensor (H02S) 2, bank 1/bank 2 -interchanged | Wiring, connectors swapped |
| P1130 | Heated oxygen sensor (H02S) 1, bank 1 -fuel trim (FT), at limit | Wiring, intake/fuel system, H02S, EGR system, oil level, camshaft timing, cylinder compression, ECM |
| P1131 | Heated oxygen sensor (H02S) 1, bank 1 not switching, fuel trim (FT) weak mixture | Wiring, intake/fuel system, H02S, EGR system, oil level, camshaft timing, cylinder compression, ECM |
| P1132 | Heated oxygen sensor (H02S) 1, bank 1 notswitching, fuel trim (FT) rich mixture | Wiring, intake/fuel system, H02S, EGR system, oil level, camshaft timing, cylinder compression, ECM |
| P1137 | Heated oxygen sensor (H02S) 2, bank 1 not switching, fuel trim (FT) weak mixture | Wiring, exhaust system leaking, H02S |
| P1138 | Heated oxygen sensor (H02S) 2, bank 1 not switching, fuel trim (FT) rich mixture | Wiring, exhaust system leaking, H02S |
| P1150 | Heated oxygen sensor (H02S) 1, bank 2 -fuel trim (FT), at limit | Wiring, intake/fuel system, H02S, EGR system, oil level, camshaft timing, cylinder compression, ECM |
| P1151 | Heated oxygen sensor (H02S) 1, bank 2 not switching, fuel trim (FT) weak mixture | Wiring, intake/fuel system, H02S, EGR system, oil level, camshaft timing, cylinder compression, ECM |
| P1152 | Heated oxygen sensor (H02S) 1, bank 2 not switching, fuel trim (FT) rich mixture | Wiring, intake/fuel system, H02S, EGR system, oil level, camshaft timing, cylinder compression, ECM |
| P1157 | Heated oxygen sensor (H02S) 2, bank 2 notswitching, fuel trim (FT) weak mixture | Wiring, exhaust system leaking, H02S |
| P1158 | Heated oxygen sensor (H02S) 2, bank 2 not switching, fuel trim (FT) rich mixture | Wiring, exhaust system leaking, H02S |
| P1168 | Fuel rail pressure sensor -signal low | Wiring, fuel level, low fuel pressure, fuel rail pressure sensor |
| P1169 | Fuel rail pressure sensor -signal high | Wiring, high fuel pressure, fuel rail pressure sensor |
| P1170 | Oxygen sensor (02S)/heated oxygen sensor (H02S) 1, bank 1 -no activity detected | Wiring open circuit, heating inoperative, 02S/H02S |
| P1173 | Oxygen sensor (02S)/heated oxygen sensor (H02S) 1, bank 2 -no activity detected | Wiring, 02S/H02S, ECM |
| P1180 | Fuel delivery system -pressure low | Fuel filter blocked, fuel supply blocked |
| P1181 | Fuel delivery system -pressure high | Fuel pressure regulator |
| P1183 | Engine oil temperature (EOT) sensor -circuit malfunction | Wiring, EOT sensor, ECM |
| P1184 | Engine oil temperature (EOT) sensor -out of self-test range | Wiring, EOT sensor, ECM |
| P1195 | Exhaust gas pressure sensor -circuit malfunction | Wiring, exhaust gas pressure sensor, exhaust gas pressure control solenoid, ECM |
| P1196 | Starter switch -circuit malfunction | Wiring, starter motor, starter switch, ECM |
| P1220 | Throttle control system (traction control)malfunction | Wiring, throttle position motor, mechanical fault, throttle position (TP) sensor, ECM |
| P1224 | Throttle position (TP) sensor (traction control).voltage out of range | Wiring, mechanical fault, TP sensor |
| P1229 | Supercharger (SC) intercooler pump | Wiring, SC intercooler pump, SC intercooler pump relay, ECM |
| P1230 | Fuel pump/variable load control module -circuit intermittent | Wiring |
| P1231 | Fuel pump -circuit malfunction | Wiring, fuel pump relay |
| P1232 | Low speed fuel pump -malfunction | Wiring, low speed fuel pump relay, ECM |
| P1233 | Fuel system -malfunction | Wiring, IFS switch, fuel pump, fuel pump control module, ECM |
| P1234 | Fuel system -malfunction | Wiring, IFS switch, fuel pump, fuel pump control module, ECM |
| P1235 | Fuel pump control -signal malfunction | Wiring, fuel pump, fuel pump control module, ECM |
| P1236 | Fuel pump control -signal malfunction | Wiring, fuel pump, fuel pump control module, ECM |
| P1237 | Fuel pump -circuit malfunction | Wiring, fuel pump, fuel pump relay, fuel pump control module |
| P1238 | Fuel pump -circuit malfunction | Wiring, fuel pump, fuel pump relay, fuel pump control module |
| P1244 | Alternator -low input | Wiring, drive belt, alternator, ECM |
| P1245 | Alternator -high input | Wiring, alternator, ECM |
| P1246 | Alternator | Wiring, alternator, drive belt, ECM |
| P1250 | Fuel pressure regulator control solenoid | Wiring, fuel pressure regulator control solenoid, vacuum hoses, ECM |
| P1260 | Theft detected -vehicle immobilized | – |
| P1270 | Maximum engine RPM or vehicle speed limitreached | Engine over revved in neutral, wheel slippage |
| P1285 | Cylinder head temperature (CHT) sensor overheatcondition | Wiring, cooling system fault, CHT sensor |
| P1288 | Cylinder head temperature (CHT) sensor out of self-test range | Wiring, cooling system fault, CHT sensor |
| P1289 | Cylinder head temperature (CHT) sensor -high input | Wiring, cooling system fault, CHT sensor |
| P1290 | Cylinder head temperature (CHT) sensor -low input | Wiring, cooling system fault, CHT sensor |
| P1299 | Cylinder head temperature (CHT) sensor -over temperature condition | Wiring, cooling system fault, CHT sensor |
| P1309 | Misfire monitor disabled | CMP sensor, CKP sensor, ECT sensor, MAF sensor, ECM |
| P1345 | Camshaft position (CMP) sensor -circuit malfunction | Wiring, CMP sensor, ECM |
| P1351 | Ignition system diagnostic monitor -input circuit malfunction | Wiring, ECM |
| P1352 | Ignition coil 1, primary -circuit malfunction | Wiring, spark plug(s), ignition coil, ICM |
| P1353 | Ignition coil 2, primary -circuit malfunction | Wiring, spark plug(s), ignition coil, ICM |
| P1354 | Ignition coil 3. primary -circuit malfunction | Wiring, spark plug(s), ignition coil, ICM |
| P1355 | Ignition coil 4. primary -circuit malfunction | Wiring, spark plug(s), ignition coil, ICM |
| P1358 | Ignition system diagnostic monitor -out of self-test range | Wiring. ignition coil, ECM |
| P1359 | Ignition system -spark output (SPOUT) signal -circuit malfunction | Wiring. ECM |
| P1364 | Ignition coil. primary -circuit malfunction | Wiring, spark plug(s), ignition coil, ICM |
| P1380 | Camshaft position (CMP) actuator -circuit malfunction | Wiring, CMP actuator, ECM |
| P1381 | Camshaft position (CMP) actuator, bank 1 timing over advanced | Wiring, timing belt/chain, CMP actuator, low oil pressure |
| P1383 | Camshaft position (CMP) actuator. bank 1 timing over retarded | Wiring, timing belt/chain, CMP actuator |
| P1390 | Octane adjustment | Octane adjustment connector, ECM |
| P1400D | Exhaust gas recirculation (EGR) valve position sensor low input | Wiring, EGR solenoid, EGR valve position sensor, ECM |
| P1400 fJ | Exhaust gas recirculation (EGR) pressure sensor circuit malfunction. low input | Wiring, EGR pressure sensor, ECM |
| P1401 0 | Exhaust gas recirculation (EGR) valve position sensor -‘high input | Wiring, EGR solenoid, EGR valve position sensor, ECM |
| P1401 fJ | Exhaust gas recirculation (EGR) pressure sensor circuit malfunction. high input | Wiring, EGR pressure sensor, ECM |
| P1402 | Exhaust gas recirculation (EGR) valve position sensor circuit malfunction | Wiring, EGR solenoid, EGR valve position sensor,ECM |
| P1403 | Exhaust gas recirculation (EGR) pressure sensor | Pressure hoses reversed |
| P1405 | Exhaust gas recirculation (EGR) system upstream hose off or plugged | EGR hoses |
| P1406 | Exhaust gas recirculation (EGR) system downstream hose off or blocked | EGR hoses |
| P1407 | Exhaust gas recirculation (EGR) solenoid | Wiring, hose leak/blockage, EGR solenoid. EGR valve position sensor, ECM |
| P1408D | Exhaust gas recirculation (EGR) solenoid | Wiring, hose leak/blockage, EGR solenoid, EGR valve position sensor, ECM |
| P1408 fJ | Exhaust gas recirculation (EGR) system out of self-test range | Wiring, EGR hoses, EGR valve, EGR solenoid,ECM |
| P1409 | Exhaust gas recirculation (EGR) solenoid circuit malfunction | Wiring, EGR solenoid, ECM |
| P1410 | Fuel pressure regulator control solenoid! exhaust gas recirculation (EGR) control solenoid | Wiring, connectors swapped |
| P1411 | Secondary air injection (AIR) system malfunction | AIR hoses, AIR pump, AIR solenoid |
| P1413 | Secondary air injection monitor circuit -low input | Wiring, AIR solenoid, AIR pump, ECM |
| P1414 | Secondary air injection monitor circuit -high input | Wiring, AIR solenoid, ECM |
| P1442 | Evaporative emission (EVAP) system -small leak detected | Hose connection(s), intake leak, EVAP canister,EVAP canister purge valve |
| P1443 g | Evaporative emission (EVAP) system malfunction | Wiring, EVAP system hoses, EVAP canister, EVAP canister purge valve |
| P1443 D | Idle air control (lAC) valve | Wiring, lAC valve, ECM |
| P1444 | Evaporative emission (EVAP) system -low input | Wiring, EVAP pressure sensor, ECM |
| P1445 | Evaporative emission (EVAP) system -high input | Wiring, EVAP pressure sensor, ECM |
| P1450 | Evaporative emission (EVAP) system, vent control -circuit malfunction | Wiring, EVAP system hoses, EVAP canister purge valve, fuel filler cap blocked |
| P1451 | Evaporative emission (EVAP) canister purge valve -circuit malfunction | Wiring, EVAP canister purge valve, ECM |
| P1452 | Evaporative emission (EVAP) system -unable to bleed fuel tank vacuum | Wiring, EVAP system hoses, EVAP canister purge valve, fuel filler cap blocked |
| P1455 | Evaporative emission (EVAP) system -malfunction | Fuel filler cap blocked, EVAP system hoses |
| P1460 | Wide open throttle (WOT) relay, AlC -circuit malfunction | Wiring, WOT relay, ECM |
| P1461 | AlC refrigerant pressure sensor -high voltage | Wiring, AlC refrigerant pressure sensor, ECM |
| P1462 | AlC refrigerant pressure sensor -low voltage | Wiring, AlC refrigerant pressure sensor, ECM |
| P1463 | AlC refrigerant pressure sensor -insufficient pressure change | Wiring, AlC system -mechanical fault, AlC refrigerant pressure sensor, AlC compressor clutch |
| P1464 | AlC demand -signal out of self-test range | Wiring, AlC ON -during self-test, WOT relay (AIC cut-out), ECM |
| P1469 | Frequent AlC compressor clutch cycling | Wiring, AlC system -mechanical fault |
| P1473 | Engine coolant blower motor -circuit malfunction | Wiring, engine coolant blower motor, variable load control module |
| P1474 | Engine coolant blower motor (low speed) control circuit malfunction | Wiring, engine coolant blower motor relay, ECM |
| P1477 | Engine coolant blower motor (medium speed) control circuit malfunction | Wiring, engine coolant blower motor relay, ECM |
| P1479 | Engine coolant blower motor (high speed) control circuit malfunction | Wiring, engine coolant blower motor relay, ECM |
| P1480 | Engine coolant blower motor (low speed) -with low speed fan ON | Wiring, engine coolant blower motor relay |
| P1481 | Engine coolant blower motor (low speed) -with high speed fan ON | Wiring, engine coolant blower motor relay |
| P1483 | Engine coolant blower motor -intermittent fault | Wiring, engine coolant blower motor, variable load control module |
| P1484 | Variable load control module -malfunction | Wiring open circuit, variable load control module |
| P1485 | Exhaust gas recirculation (EGR) control solenoid -circuit malfunction | Wiring, hose leak/blockage, EGR control solenoid, ECM |
| P1486 | Exhaust gas recirculation (EGR) vent solenoid -circuit malfunction | Wiring, hose leak/blockage, EGR vent solenoid, ECM |
| P1487 | Exhaust gas recirculation (EGR) control solenoid -circuit malfunction | Wiring, hose leak/blockage, EGR control solenoid, EGR valve position sensor, EGR solenoid, exhaust system blocked, ECM |
| P1500 | Vehicle speed sensor (VSS) -circuit intermittent | Wiring, VSS, ECM |
| P1501 | Vehicle speed sensor (VSS) -out of self-test range | Electro-magnetic interference |
| P1502 | Vehicle speed sensor (VSS) -intermittent signal | Wiring, VSS/ABS wheel speed sensors |
| P1504 | Idle air control (lAC) valve -circuit malfunction | Wiring, lAC valve, ECM |
| P1505 | Idle air control (lAC) system -air trim, at limit | Intake system leaking, air filter blocked, throttle body, lAC valve |
| P1506 | Idle air control (lAC) valve -over-speed error | Wiring, lAC valve, vacuum leaks, ECM |
| P1507 | Idle air control (lAC) valve -under-speed error | Wiring, lAC valve, hose blocked, ECM |
| P1512 | Intake manifold runner control (IMRC) module malfunction, stuck closed | Mechanical fault |
| P1513 | Intake manifold runner control (IMRC) module malfunction, stuck closed | Mechanical fault |
| P1516 | Intake manifold runner control (IMRC) module input error (bank 1) | Wiring, mechanical fault |
| P1517 | Intake manifold runner control (IMRC) moduleinput error (bank 2) | Wiring, mechanical fault |
| P1518 | Intake manifold runner control (IMRC) module malfunction, stuck open | Wiring, IMRC actuator, ECM |
| P1519 | Intake manifold runner control (IMRC) module malfunction, stuck closed | Wiring, IMRC actuator, ECM |
| P1520 | Intake manifold runner control (IMRC) module circuit malfunction | Mechanical fault, vacuum hoses, IMRC actuator, ECM |
| P1521 | Intake manifold air control solenoid 1 -circuit malfunction | Wiring, intake manifold air control solenoid 1, ECM |
| P1522 | Intake manifold air control solenoid 2 -circuit malfunction | Wiring, intake manifold air control solenoid 2, ECM |
| P1523 | Intake manifold air control solenoid, high speed -circuit malfunction | Wiring, intake manifold air control solenoid, ECM |
| P1530 | AlC compressor clutch -circuit malfunction | Wiring open circuit/short circuit to positive, AlC compressor clutch, variable load control module |
| P1537 | Intake manifold runner control (IMRC) modulemalfunction, stuck closed | Wiring, mechanical fault, ECM |
| P1538 | Intake manifold runner control (IMRC) module malfunction, stuck closed | Wiring, mechanical fault, ECM |
| P1539 | AlC compressor clutch -circuit malfunction | Wiring, AlC compressor clutch, variable load control module |
| P1549 | Intake manifold air control sy!?tem -malfunction | Wiring, intake manifold air control solenoid, ECM |
| P1550 | Power steering pressure (PSP) sensormalfunction | Wiring, PSP sensor, ECM |
| P1565 | Cruise control system | Wiring, CPP switch, BPP switch, cruise control module, cruise control master switch, VSS |
| P1566 | Cruise control system | Wiring, CPP switch, BPP switch, cruise control module, cruise control master switch, VSS |
| P1567 | Cruise control system | Wiring, CPP switch, BPP switch, cruise control module, cruise control master switch, VSS |
| P1568 | Cruise control system | Wiring, CPP switch, BPP switch, cruise control module, cruise control master switch, VSS |
| P1605 | ‘Keep alive’ memory test failure | Wiring, battery terminal corrosion, loose battery connection, ECM |
| P1609 | Engine control module (ECM) -intemal fault | ECM |
| P1625 | Variable load control module, power supply toengine coolant blower motor -circuit malfunction | Wiring, variable load control module |
| P1626 | Variable load control module, power supply to AlCsystem -circuit malfunction | Wiring, variable load control module |
| P1633 | ‘Keep alive’ power supply -voltage too low | Wiring, ECM |
| P1635 | Tire/axle ratio out of range | Incorrect tire size, incorrect axle ratio, incorrectvehicle 10 configuration |
| P1636 | Engine control module (ECM) -internal fault | ECM |
| P1640 | Diagnostic trouble codes stored | P-codes stored in another control module |
| P1641 | Fuel pump -circuit malfunction | Wiring, fuel pump relay, fuel pump, ECM |
| P1650 | Power steering pressure (PSP) switch malfunction | Wiring, PSP switch, steering wheel turned during self-test, ECM |
| P1651 | Power steering pressure (PSP) switch -input | Wiring, vehicle towed with engine running, P5P switch, DTC not erased, ECM |
| P1700 | Transmission system -malfunction | Transmission |
| P1701 | Transmission system -reverse engagement error | Transmission |
| P1702 | Transmission range (TR) sensor -circuit intermittent | Wiring, TR sensor |
| P1703 | Brake pedal position (BPP) switch -out of self-test range | Wiring, brake pedal depressed during self-test, rear electronic modulellights control module, BPP switch, ECM |
| P1704 | Transmission range (TR) sensor -malfunction | Wiring, TR sensor |
| P1705 III | Transmission range (TR) sensor -out of self-test range | Wiring, TR sensor |
| P1705 liI | Park/neutral position (PNP) switch/clutch pedal position (CPP) switch | Wiring, PNP switch, CPP switch, ECM |
| P1709D | Throttle position (TP) sensor -malfunction | Wiring, mechanical fault, TP sensor, ECM |
| P1709 III | Park/neutral position (PNP) switch/clutch pedal position (CPP) switch -out of self-test range | Wiring, PNP switch/CPP switch, ECM |
| P1710 | Transmission fluid temperature (TFT) sensor mid range failure | Wiring, TFT sensor |
| P1711 | Transmission fluid temperature (TFT) sensor out of self-test range | Wiring, TFT sensor, ECM |
| P1713 | Transmission fluid temperature (TFT) sensor low range failure | Wiring, TFT sensor |
| P1714 | Shift solenoid (SS) A -inductive malfunction | Wiring, 55, ECMITCM |
| P1715 | Shift solenoid (SS) B -inductive malfunction | Wiring, 55, ECMITCM |
| P1716 | Shift solenoid (SS) C -inductive malfunction | Wiring, 55, ECMITCM |
| P1717 | Shift solenoid (SS) 0 -inductive malfunction | Wiring, 55, ECMITCM |
| P1718 | Transmission fluid temperature (TFT) sensor high range failure | Wiring, TFT sensor |
| P1719 | Overdrive speed sensor -circuit malfunction | Wiring, overdrive speed sensor, TCM |
| P1720 | Vehicle speed sensor (VSS) -circuit malfunction | Wiring, V55, vehicle speedometer, ECM |
| P1728 | Torque converter clutch (TCC) -slip fault | TCC |
| P1729 | 4x4L switch -malfunction | Wiring, four wheel drive shift control module, ECM |
| P1740 | Torque converter clutch (TCC) solenoid -circuit malfunction | Wiring, TCC solenoid, ECMITCM |
| P1741 | Torque converter clutch (TCC) -control error | Wiring, TCC, TCM |
| P1742 | Torque converter clutch (TCC) solenoid | Wiring, TCC solenoid |
| P1743 | Torque converter clutch (TCC) solenoid | Wiring, TCC solenoid |
| P1744 | Torque converter clutch (TCC) -malfunction | Wiring, TCC, TCC solenoid, TCM |
| P1745 | Transmission fluid pressure (TFP) solenoid -circuit malfunction | Wiring, TFP solenoid, TCM, ECM |
| P1746 | Transmission fluid pressure (TFP) solenoid -circuitmalfunction | Wiring, TFP solenoid, TCM, ECM |
| P1747 | Transmission fluid pressure (TFP) solenoid -circuit malfunction | Wiring short circuit, TFP solenoid, TCM |
| P1749 | Transmission fluid pressure (TFP) solenoid -malfunction | Wiring, TFP solenoid, TCM |
| P1751 | Shift solenoid (SS) A -performance | Wiring, 55 |
| P1754 | Coast clutch solenoid -circuit malfunction | Wiring, coast clutch solenoid |
| P1756 | Shift solenoid (SS) B -performance | Wiring, 55 |
| P1760 | Transmission fluid pressure (TFP) solenoid -short circuit | Wiring, TFP solenoid, TCM |
| P1761 | Shift solenoid (SS) C -performance | Wiring, 55 |
| P1762 | Overdrive band failed/off | Transmission |
| P1765 | Shift solenoid (SS), downshift 3-2 -malfunction | Wiring, 55, ECMITCM |
| P1767 | Torque converter clutch (TCC) -circuit malfunction | Wiring, TCC, TCM |
| P1780 | Overdrive selection switch | Wiring, transmission control switch, ECM |
| P1781 | 4x4L switch -out of self-test range | Wiring, four wheel drive shift control module, 4x4L switch, ECM |
| P1783 | Transmission fluid temperature (TFT) sensoroverheating condition . | Wiring, TFT sensor, TCM , ECM |
| P1784 | Transmission, reverselfirst gear -mechanical fault | Transmission |
| P1785 | Transmission, first/second gear -mechanical fault | Transmission |
| P1786 | Gear selection, 3-2 -downshift malfunction | Wiring, TR sensor, shift solenoids, transmission mechanical fault |
| P1787 | Gear selection, 2-1 -downshift malfunction | Wiring, TR sensor, shift solenoids, transmission mechanical fault |
| P1788 | Transmission shift control valve, 3-2 downshift! coastdown downshift -open circuit | Wiring, transmission shift control valve, TCM |
| P1789 | Transmission shift control valve, 3-2 downshift! coastdown downshift -short circuit | Wiring, transmission shift control valve, TCM |
| P1792 | Closed throttle position (CTP) switch -circuit malfunction | Wiring, CTP switch, ECM |
| P1794 | Battery voltage low | Wiring, engine control relay, battery |
| P1795 | Exhaust gas pressure sensor -circuit malfunction | Wiring, exhaust gas pressure sensor, exhaust gas pressure control solenoid, ECM |
| P1797 | Park/neutral position (PNP) switch/clutch pedal position (CPP) switch | Wiring, PNP switch, CPP switch, ECM |
| P1900 | Output shaft speed (OSS) sensor -circuit intermittent | Wiring, poor connection, 055 sensor, ECMITCM |
| P1901 | Turbine shaft speed (TSS) sensor -circuitintermittent | Wiring, poor connection, TSS sensor, ECMITCM |
| U1020 | CAN data bus, AlC -AlC compressor clutch invalid or missing data | Wiring, AlC trouble code(s) stored |
| U1021 | CAN data bus, AlC -communication error | Wiring, AlC trouble code(s) stored, ECM |
| U1039 | CAN data bus, anti lock brake system (ABS)vehicle speed invalid or missing data | Wiring, ASS trouble code(s) stored |
| U1041 | CAN data bus, antilock brake system (ABS)vehicle speed invalid or missing data | Wiring, ASS trouble code(s) stored |
| U1051 | CAN data bus, engine control module (ECM)brake signal invalid or missing data | Wiring, SPP switch, bulb(s) |
| U1073 | CAN data bus, cooling system -communicationerror | Wiring, variable load control module, ECM(alternative fuel) -if fitted, ECM |
| U1089 | CAN data bus, active suspension -invalid or missing data | Wiring, active suspension trouble code(s) stored |
| U1098 | CAN data bus, anti lock brake system (ASS)vehicle speed invalid or missing data | Wiring, ABS trouble code(s) stored |
| U1130 | CAN data bus, fuel pump -communication error | Wiring, instrument panel, ECM |
| U1131 | CAN data bus, fuel pump -communication error | Wiring, instrument panel, ECM |
| U1135 | CAN data bus, engine control module (ECM)ignition switch invalid or missing data | Wiring |
| U1147 | CAN data bus, alarm | Wiring, alarm system trouble code(s) stored |
| U1243 | CAN data bus, AlC -invalid or missing data | Wiring, AlC system trouble code(s) stored |
| U1256 | CAN data bus -communication error | Wiring, trouble code(s) stored in other control modules |
| U1262 | CAN data bus -communication error | Wiring, trouble code(s) stored in other control modules |
| U1341 | CAN data bus, AlC -vehicle speed invalid or missing data | Wiring, AlC trouble code(s) stored |
| U1451 | CAN data bus, alarm | Wiring, alarm system trouble code(s) stored |
| U2195 | CAN data bus, lights control module -invalid or missing data . | Wiring, lights control module trouble code(s) stored |
| U2243 | CAN data bus, AlC | Wiring, AlC system trouble code(s) stored |