Jaguar OBD/OBD2 Codes >> XJ6/8/12 – XJR – XJS 4.0/6.0L – XK8 4.0L (1995 – 2003)

ModeLYearEngine identificationSystem
XJ6 4.0L1995-97AJ16  Nippon Denso
XJ8 4.0L1998-03AJ26, AJ27  Nippon Denso
XJ12 6.0L1995-97V12  Nippon Denso
XJR 4.0L1995-03AJ16, AJ26, AJ27  Nippon Denso
XJS 4.0L1995-96AJ16  Nippon Denso
XJS 6.0L1995-96V12  Nippon Denso
XK8 4.0L1997-99AJ26, AJ27  Nippon Denso

GeneraL information

  • Engine control module (ECM) incorporates self-diagnosis function.
  • Malfunction indicator lamp (MIL) will illuminate if certain faults are recorded.
  • ECM operates in backup mode if sensors fail, to enable vehicle to be driven to workshop.

Accessing and erasing

  • The engine control module (ECM) fault memory can only be accessed and erased using diagnostic equipment connected to the data link connector (DLC):
o XJ6/XJ12 [1]
o XJS [2]

Trouble code  identification

 OBD-11 code Fault location Probable cause
PO, P2,UORefer to OBD-11 trouble code tables–
P1000Engine control module (ECM) – internal errorECM
P1001Engine running system self-test not complete–
P1101Mass air flow (MAF) sensor – signal out of rangeWiring, MAF sensor
P1104Mass air flow (MAF) sensor – ground circuit malfunctionWiring, MAF sensor
P1106Manifold absolute pressure (MAP) sensor – range/performanceWiring, MAP sensor
P1107Manifold absolute pressure (MAP) sensor – signal voltage lowWiring, MAP sensor
P1108Manifold absolute pressure (MAP) sensor – signal voltage highWiring, MAP sensor
P1112Intake air temperature (IAT) sensor – intermittent signalWiring, IAT sensor
P1113Intake air temperature (IAT) sensor 2- voltage highWiring, IAT sensor
P1116Engine coolant temperature (ECT) sensor – signal out of rangeWiring, ECT sensor
P1117Engine coolant temperature (ECT) sensor – intermittent signalWiring, ECT sensor
P1121Throttle position (TP) sensor/mass air flow   (MAF) sensor – implausible signalWiring, TP sensor
P1122Accelerator pedal position (APP) sensor 1 – signal voltage lowWiring, APP sensor
P1123Accelerator pedal position (APP) sensor 1 – signal voltage highWiring, APP sensor
P1124Throttle position (TP) sensor – signal out of rangeWiring, TP sensor
P1127Heated oxygen sensor (H02S) 2 (downstream), bank 1 -exhaust not hot enough for self-testEngine not at operating temperature, exhaust leak
P1128Heated oxygen sensors (H02S) 1 (upstream), bank 1/2Wiring, H02S 1 (upstream) swapped banks
P1129Heated oxygen sensors (H02S) 2 (downstream), bank 1/2Wiring, H02S 2 (downstream) swapped banks
P1130Heated oxygen sensors (H02S) 1 (upstream), bank 1 – slow response, adaptive fuel at limitWiring, H02S, intake system leak, exhaust leak, contaminated fuel, ECM
P1131Heated oxygen sensors (H02S) 1 (upstream), bank 1 – slow response, system leanWiring, H02S, intake system leak, exhaust leak, contaminated fuel, ECM
P1135Crankshaft position (CKP) sensorWiring, CKP sensor
P1137Heated oxygen sensor (H02S) 2 – cylinders 1,   2, 3 – indicates leanWiring, H02S
P1138Heated oxygen sensor (H02S) 2- cylinders 1,   2, 3 – indicates richWiring, H02S
P1146Alternator – charge circuit lowWiring, alternator voltage regulator, alternator
P1150Heated oxygen sensor (H02S) 1, bank 2 – slow response, fuel trim (FT) at limitWiring, H02S, intake leak, exhaust leak, contaminated fuel, ECM
P1151Heated oxygen sensor (H02S) 1, bank 2 – slow response, system too leanWiring, H02S, intake leak, exhaust leak, contaminated fue·l, ECM
P1152Heated oxygen sensor (H02S) 1, bank 2 – slow response, system too richWiring, H02S, intake leak, exhaust leak, contaminated fuel, ECM
P1153Heated oxygen sensors (H02S), bank 2 – system too leanWiring, H02S contaminated, H02S
P1154Heated oxygen sensors (H02S), bank 2 – system too richWiring, H02S contaminated, H02S
P1157Heated oxygen sensor (H02S) 2, bank 2 – no activity detected, lean mixtureIntake/fuel system, injectors, H02S, MAF   sensor, ECT sensor
P1158Heated oxygen sensor (H02S) 2 -cylinders 4,   5, 6 – indicates richWiring, H02S
P1171Weak mixture – cylinders 1, 2, 3, 4, 5, 6Wiring, fuel level, fuel pump, fuel pump relay, injector(s)
P1172Rich mixture – cylinders 1, 2, 3, 4, 5, 6Blocked fuel line, injector(s), other trouble code(s) stored
P1174Fuel trim (mixture)- lean mixture, bank 1 & 2Wiring, H02S
P1175Fuel trim (mixture)- rich mixture, bank 1 & 2Wiring, H02S
P1176Weak mixture – long term fuel.trimWiring, fuel pump, blocked fuel filter, injector(s), other trouble code(s) stored
P1177Rich mixture – long term fuel trimFuel pressure, blocked fuel line, injector(s), other trouble code(s) stored
P1178Weak mixture – long term fuel trimAir leak, other trouble code(s) stored
P1179Rich mixture – long term fuel trimExhaust leak, other trouble code(s) stored
P1183Engine oil temperature sensor – circuit malfunctionWiring, engine oil temperature sensor
P1184Engine oil temperature sensor – signal malfunctionWiring, engine oil temperature sensor
P1185Oxygen sensor heater 1 – cylinders 1, 2, 3,   4, 5, 6Wiring, H02S
P1186Oxygen sensor heater 1 – cylinders 1, 2, 3,   4, 5, 6Wiring, H02S
P1187Oxygen sensor heater 1 – cylinders 1, 2, 3,   4, 5, 6 – circuit malfunctionWiring, H02S
P1188Oxygen sensor heater 1 – cylinders 1, 2, 3,   4, 5, 6 – resistanceWiring, H02S
P1189Oxygen sensor heater 1 – cylinders 1, 2, 3,   4, 5, 6 – low resistanceWiring, H02S
P1190Oxygen sensor heater 1 – cylinders 1, 2, 3,   4, 5, 6 – low resistanceWiring, H025
P1191Oxygen sensor heater 2 – cylinders 1, 2, 3,   4, 5, 6Wiring, H02S
P1192Oxygen sensor heater 2 – cylinders 1, 2, 3,   4, 5, 6Wiring, H025
P1193Oxygen sensor heater 2 – cylinders 1, 2, 3,   4, 5, 6 – circuit malfunctionWiring, H025
P1194Oxygen sensor heater 2 – cylinders 1, 2, 3,   4, 5, 6 – resistanceWiring, H02S
P1195Oxygen sensor heater 2 – cylinders 1, 2, 3,   4, 5, 6 – low resistanceWiring, H025
P1196Oxygen sensor heater 2 – cylinders 1, 2, 3,   4, 5, 6 – low resistanceWiring, H025
P1198Fuel level sensorWiring, fuel level sensor
P1199Fuel level sensorWiring, fuel level sensor
P1201Injector – cylinder 1 – short circuit/open circuitWiring, injector
P1202Injector – cylinder 2 – short circuit/open circuitWiring, injector
P1203Injector – cylinder 3 – short circuit/open circuitWiring, injector
P1204Injector – cylinder 4 – short circuit/open circuitWiring, injector
P1205Injector – cylinder 5 – short circuit/open circuitWiring, injector
P1206Injector – cylinder 6 – short circuit/open circuitWiring, injector
P1207Injector – cylinder 7 – short circuit/open circuitWiring, injector
P1208Injector – cylinder 8 – short circuit/open circuitWiring, injector
P1214Accelerator pedal position (APP) sensor 2 – signal malfunctionWiring, APP sensor
P1215Accelerator pedal position (APP) sensor 2 – signal voltage lowWiring, APP sensor
P1216Accelerator pedal position (APP) sensor 2 – signal voltage highWiring, APP sensor
P1217Accelerator pedal position (APP) sensor 3 – intermittent signalWiring, APP sensor
P1221Accelerator pedal position (APP) sensor 8 – circuit range/performanceWiring, APP sensor
P1222Accelerator pedal position (APP) sensor 2 – signal voltage lowWiring, APP sensor
P1223Accelerator pedal position (APP) sensor 2 – signal voltage highWiring, APP sensor
P1224Throttle control position – malfunctionWiring, TP sensor, throttle motor relay, throttle motor, throttle body
P1229Throttle motor – circuit malfunctionWiring, throttle motor relay, throttle motor, throttle body
P1230
Fuel pump (FP) relay – circuit malfunctionWiring, FP relay
P1233Fuel pump (FP) – circuit malfunctionWiring, FP, ECM
P1234Fuel pump (FP) control module – control module disabled or off lineWiring, FP control module, ECM
P1235Fuel pump (FP) control module – signal malfunctionWiring, FP control module
P1236Fuel pump (FP) not responding to ECM   commandsWiring, FP control module
P1237Fuel pump (FP) – circuit malfunctionWiring, FP relay, FP, ECM
P1238Cruise control vacuum switching valve 3 – circuit malfunctionWiring, cruise control vacuum switching valve
P1240Sensor power supply – circuit malfunctionWiring, APP sensor, MAP sensor, TP sensor, fuel tank pressure sensor(s)
P1241Sensor power supply – low inputWiring, MAP sensor, TP sensor
P1242Sensor power supply – high inputWiring, MAP sensor, TP sensor
P1243Sensor ground circuit – malfunctionWiring, APP sensor, MAP sensor, TP sensor, fuel tank pressure sensor(s)
P1244Alternator – voltage highWiring, alternator voltage regulator, alternator
P1245No cranking signal – low signalWiring, CKP sensor
P1246No cranking signal – high signalWiring, CKP sensor
P1250Throttle valve return spring – malfunctionThrottle body
P1251Throttle motor relay – malfunctionWiring, throttle motor relay
P1252Cruise control vacuum switching valve -stuck onWiring, cruise control vacuum switching valve
P1253Cruise control vacuum switching valve – stuck onWiring, cruise control vacuum switching valve
P1254Throttle limp-home spring – malfunctionThrottle body
P1260Vehicle immobilizedInvalid ignition key, immobilizer system fault
P1270Maximum engine RPM or vehicle speed limit reached–
P1285Cylinder head temperature (CHT) sensor – circuit malfunctionEngine coolant level low, cooling thermostat, engine under load
P1288Cylinder head temperature (CHT) sensor – signal malfunction, out of rangeWiring, CHT sensor, engine coolant blower motor, engine coolant blower motor control module
P1289Cylinder head temperature (CHT) sensor – signal voltage highWiring, CHT sensor
P1290Cylinder head temperature (CHT) sensor- signal voltage lowWiring, CHT sensor
P1299Engine control module (ECM) -fail safe modeWiring, engine control module (ECM) cooling fan, engine coolant blower motor control module
P1309Persistent misfireWiring, CKP sensor, ECM
P1313Misfire/catalyst damage – bank 1Engine mechanical fault, wiring, ignition/fuel system, injector(s), MAPfTP/ECT/IAT sensor, EVAP system, ECM
P1314Misfire/catalyst damage – bank 2Engine mechanical fault, wiring, ignition/fuel system, injector(s), MAPfTP/ECT/IAT sensor, EVAP system, ECM
P1315Persistent misfireOther trouble code(s) stored (P0301-P0306)
P1316MisfireWiring, other trouble code(s) stored, ignition/fuel system, MAPfTP/ECT/IAT sensor, injector(s), ECM
P1335Crankshaft position (CKP) sensor – circuit malfunctionWiring, CKP sensor, ECM
P1336Crankshaft position (CKP) sensor – range/performanceInsecure sensor/rotor, air gap, wiring, CKP   sensor
P1338Fuel pump (FP) – feedback circuit malfunctionWiring, FP control module
P1339Fuel pump (FP) 2 – circuit malfunctionWiring, FP 2, ECM
P1340Camshaft position (CMP) sensor 2, bank 2 – circuit malfunctionWiring, air gap, metal particles, damaged rotor, insecure sensor, CMP sensor
P1341Camshaft position (CMP) sensor 2, bank 2 – circuit range/performanceWiring, air gap, metal particles, damaged rotor, insecure sensor, CMP sensor
P1344Accelerator pedal position (APP) sensor 1/2- range/performance problemWiring, APP sensor(s)
P1361Ignition coil, cylinder 1 – no activationWiring, ignition coil, engine control relay, ECM
P1362Ignition coil, cylinder 2 – no activationWiring, ignition coil, engine control relay, ECM
P1363Ignition coil, cylinder 3 – no activationWiring, ignition coil, engine control relay, ECM
P1364Ignition coil, cylinder 4 – no activationWiring, ignition coil, engine control relay, ECM
P1365Ignition coil, cylinder 5 – no activationWiring, ignition coil, engine control relay, ECM
P1366Ignition coil, cylinder 6 – no activationWiring, ignition coil, engine control relay, ECM
P1367Ignition amplifier – ECM signal – bank 1Wiring, ignition coil relay, ignition amplifier, ECM
P1368Ignition amplifier- ECM signal – bank 2Wiring, ignition coil relay, ignition amplifier, ECM
P1371Ignition coil, cylinder 1 – early activationWiring, ignition coil, engine control relay, ECM
P1372Ignition coil, cylinder 2 – early activationWiring, ignition coil, engine control relay, ECM
P1373Ignition coil, cylinder 3 – early activationWiring, ignition coil, engine control relay, ECM
P1374Ignition coil, cylinder 4 – early activationWiring, ignition coil, engine control relay, ECM
P1375Ignition coil, cylinder 5 – early activationWiring, ignition coil, engine control relay, ECM
P1376Ignition coil, cylinder 6 – early activationWiring, ignition coil, engine control relay, ECM
P1380Camshaft position (CMP) actuator, bank 1 – circuit malfunctionWiring, CMP actuator
P1381Camshaft position (CMP) actuator, bank 1 – voltage highWiring, oil pressure low/high, mechanical fault, CMP actuator
P1383Camshaft position (CMP) actuator, bank 1 – voltage lowWiring, oil pressure low/high, mechanical fault, CMP actuator
P1384Camshaft position (CMP) actuator, bank 1 – malfunctionWiring, oil contamination, oil pressure low/high, mechanical fault, CMP actuator
P1385Camshaft position (CMP) actuator, bank 2 – circuit malfunctionWiring, CMP actuator
P1386Camshaft position (CMP) actuator, bank 2 – voltage highWiring, oil pressure low/high, mechanical fault, CMP actuator
P1388Camshaft position (CMP) actuator, bank 2 – voltage lowWiring, oil pressure low/high, mechanical fault, CMP actuator
P1392Camshaft position (CMP) actuator, bank 1 – voltage lowWiring, oil pressure low/high, mechanical fault, CMP actuator
P1393Camshaft position (CMP) actuator, bank 1 – voltage highWiring, oil pressure low/high, mechanical fault, CMP actuator
P1396Camshaft position (CMP) actuator, bank 2 – malfunctionWiring, oil contamination, oil pressure low/high, mechanical fault, CMP actuator
P1397Camshaft position (CMP) actuator, bank 2 – voltage lowWiring, oil pressure low/high, mechanical fault, CMP actuator
P1398Camshaft position (CMP) actuator, bank 2 – voltage highWiring, oil pressure low/high, mechanical fault, CMP actuator
P1400Exhaust gas recirculation (EGR) solenoid – position controlWiring, EGR valve position sensor, EGR   solenoid
P1401Exhaust gas recirculation (EGR) solenoid – position controlWiring, EGR valve position sensor, EGR   solenoid
P1405Exhaust gas recirculation (EGR) system – upstream hose off or blockedEGR hoses
P1406Exhaust gas recirculation (EGR) system – downstream hose off or blockedEGR hoses
P1408Exhaust gas recirculation (EGR) solenoidWiring, EGR solenoid, EGR temperature sensor
P1409Exhaust gas recirculation (EGR) solenoidWiring, EGR solenoid, EGR temperature sensor
P1410Intake air flap control actuator – circuit malfunctionWiring, intake air flap control actuator, ECM
P1440Evaporative emission (EVAP) canister purge valve- openWiring, EVAP canister purge valve, ECM
P1441Evaporative emission (EVAP) canister purge valveWiring, EVAP canister purge valve, hose connection(s)
P1443Evaporative emission (EVAP) canister purge valve – circuit malfunctionWiring, EVAP canister purge valve, ECM
P1447Evaporative loss control (ELC) system 1, closure valve – flow malfunction–
P1448Evaporative emission (EVAP) canister purge valveWiring, EVAP canister purge valve, hose connection(s)
P1450Evaporative emission (EVAP) canister purge valve – mechanical faultEVAP canister purge valve, hose connection(s), hoses
P1451Evaporative emission (EVAP) canister purge valve – circuit malfunctionWiring, EVAP canister purge valve
P1453Fuel tank pressure relief valveWiring, fuel tank pressure relief valve
P1454Evaporative emission (EVAP) system – fuel tank vacuum test failedHoses blocked/leaking, EVAP vacuum valve
P1460A/C compressor- circuit malfunctionWiring, AJC compressor clutch relay, AC compressor clutch
P1461A/C refrigerant pressure sensor – signal voltage highWiring, AJC refrigerant pressure sensor
P1462A/C refrigerant pressure sensor – signal voltage lowWiring, AJC refrigerant pressure sensor
P1463A/C refrigerant pressure sensor – malfunctionWiring, AJC leak, AJC refrigerant pressure sensor, AJC compressor
P1464A/C refrigerant pressure sensor – implausible signalWiring, AJC refrigerant pressure sensor
P1474Intercooler coolant pump/relay – malfunctionWiring, intercooler coolant pump/relay, ECM
P1475Engine coolant blower motor relay – voltage lowWiring, engine coolant blower motor relay
P1476Engine coolant blower motor relay – voltage highWiring, engine coolant blower motor relay
P1506Idle air control (lAC) valve – RPM lower than expectedWiring, intake system blocked, MAP sensor, lAC valve, fuel pressure, ECM
P1507Idle air control (lAC) valve – RPM higher than expectedWiring, intake air leak, throttle valve sticking, MAP sensor, ECM
P1508Idle air control (lAC) valve – circuit malfunctionWiring open circuit, lAC valve, ECM
P1509Idle air control (lAC) valve -circuit malfunctionWiring short circuit, lAC valve, ECM
P1512Closed throttle position (CTP) switch – low inputWiring, CTP switch, ECM
P1513Closed throttle position (CTP) switch – high inputWiring, CTP switch, ECM
P1514Park/neutral position (PNP) switch – high load neutral/driveWiring, PNP switch
P1516Park/neutral position (PNP) switch – gear chance neutral/driveWiring, PNP switch
P1517Park/neutral position (PNP) switch – cranking neutral/driveWiring, PNP switch
P1532Intake manifold air control solenoid 2 (lower flap)- circuit malfunctionWiring, intake manifold air control solenoid
P1549Intake manifold air control solenoid 1 (upper flap)- circuit malfunctionWiring, intake manifold air control solenoid
P1565Cruise control master switch- out of range, highWiring, cruise control master switch
P1566Cruise control master switch – out of range, lowWiring, cruise control master switch
P1567Cruise control master switch – output circuit malfunctionWiring, cruise control master switch
P1568Cruise control master switch·_ unable to hold vehicle speedHoses, cruise control actuator valve, mechanical fault
P1571Brake pedal position (BPP) switch – circuit malfunctionWiring, BPP switch
P1573CAN data bus, throttle position (TP) – message errorWiring, TP sensor
P1574CAN data bus, throttle position (TP)- communication malfunctionWiring, TP sensor
P1576CAN data bus, accelerator pedal position   (APP) sensor- communication malfunctionWiring, APP sensor
P1577CAN data bus, accelerator pedal position   (APP) sensor – communication malfunctionWiring, APP sensor
P1580Throttle actuator control (TAC) monitor- malfunctionWiring, throttle body, ECM
P1581Throttle actuator control (TAC) monitor – malfunctionWiring, throttle body, ECM
P1582Engine control module (ECM) – data storedWiring, inertia switch activated/defective, throttle in limp-home mode
P1583Throttle actuator control (TAC) monitor- cruise control deactivatedWiring, throttle body, ECM
P1584Throttle actuator control (TAC) monitor- throttle body malfunctionThrottle body
P1585Throttle actuator control (TAC) system – malfunctionWiring, throttle body, ECM
P1586Throttle actuator control (TAC) system – communication errorWiring, ECM
P1587Throttle actuator control (TAC) system- command malfunctionWiring, throttle body, ECM
P1589Throttle actuator control (TAC) system – throttle valve movement malfunctionWiring, throttle body, ECM
P1601Incorrect ECM/TCM fitt€d to vehicleECM/TCM coding,.ECM, TCM
P1603Transmission control module (TCM) – EEPROM malfunctionBattery disconnected with ignition ON, wiring, TCM
P1605Engine control module (ECM) – KAM errorWiring, fuses, battery
P1606Engine control (EC) relay – malfunctionWiring, EC relay
P1607Engine control module (ECM) – MIL circuitWiring, engine malfunction indicator lamp   (MIL), ECM
P1608Engine control module (ECM)ECM
P1609Engine control module (ECM) – microprocessor faultECM
P1612Engine control module (ECM) – processor faultECM
P1621Engine control module (ECM)ECM
P1622Engine control module (ECM)ECM
P1629Alternator – field circuit malfunctionWiring, alternator voltage regulator, alternator
P1631Throttle motor relay, coil circuit OFF – malfunctionWiring, throttle motor relay
P1632Alternator/charging system – load circuit malfunctionWiring, alternator voltage regulator, alternator
P1633Engine control module (ECM) – central processor malfunctionECM
P1634ECM/throttle monitoring – circuit malfunctionECM
P1635Implausible vehicle speed signalIncorrect tyre size, incorrect axle ratio, ECM   not programmed
P1636Engine control module (ECM) – communication errorECM
P1637CAN data bus, ECM/ABS/TCS control module – network malfunctionWiring, ABS/TCS control module, ECM
P1638CAN data bus, ECM/instrumentation control module – network malfunctionWiring, instrumentation control module, ECM
P1641Fuel pump relay 1 – malfunctionWiring, fuel pump relay
P1642CAN data bus – circuit malfunctionWiring
P1643CAN data bus, ECM/TCM – network malfunctionWiring, TCM, ECM
P1647Heated oxygen sensor (H02S) 1 (upstream), bank 2 – control malfunctionWiring, H02S, ECM
P1648Engine control module (ECM) – self-test malfunctionECM
P1651Power steering pressure (PSP) switch – input signalWiring, PSP switch
P1656ECM/TP sensor amplifier – circuit malfunctionECM
P1657Throttle motor relay, coil circuit ON – malfunctionWiring, throttle motor relay
P1658Throttle motor relay – malfunctionWiring, throttle motor relay
P1671Fuel pump (FP) relay 2 – circuit malfunctionWiring, FP relay, fuel pump (FP), ECM
P1672Engine control module (ECM) – suspension control module – CAN data bus malfunctionWiring, CAN, suspension control module, ECM
P1696Controller area network (CAN) data bus- communication malfunctionWiring, CAN, cruise control module, ECM
P1697Cruise control switch – circuit malfunctionWiring, cruise control switch, ECM
P1699CAN data bus, ECM to A/C control module – network malfunctionWiring, AJC control module, ECM
P1700Transmission – neutral position faultWiring, transmission
P1702Transmission range (TR) sensor- circuit intermittentWiring, TR sensor
P1704Transmission range (TR) sensor- circuit not indicating park/neutral during self-testWiring, TR sensor, ECM
P1705Transmission range (TR) switch – not in P/N   during self-testWiring, TR switch, ECM
P1710Transmission control valve solenoids – ground circuit malfunctionWiring
P1711Transmission fluid temperature (TFT) sensor – out of self-test rangeWiring, TFT sensor
P1713Transmission fluid temperature (TFT) sensor- circuit range/performanceWiring, TFT sensor
P1714Shift solenoid (SS) A – malfunctionWiring, 55, ECM
P1715Shift solenoid (SS) B – malfunctionWiring, SS, ECM
P1716Shift solenoid (SS) C – malfunctionWiring, SS, ECM
P1717Shift solenoid (SS) D – malfunctionWiring, SS, ECM
P1718Transmission fluid temperature (TFT) sensor- circuit range/performanceWiring, TFT sensor
P1720Vehicle speed sensor (VSS)- circuit malfunctionWiring
P1722Stall speed–
P1726Engine overspeed–
P1730Gear shift malfunction 2/3/5Transmission mechanical fault
P1731Inconsistent gear ratioTransmission mechanical fault
P1734Gearshift malfunctionTransmission mechanical fault
P1740Torque converter clutch (TCC) solenoid – malfunctionWiring, TCC solenoid, ECM
P1745Transmission low clutch timing solenoid – circuit malfunctionWiring, internal wiring, solenoid
P1746Transmission timing reduction solenoid – circuit malfunctionWiring, internal wiring, solenoid
P1747Transmission brake timing solenoid 2/4 – circuit malfunctionWiring, internal wiring, solenoid
P1749Park/neutral position (PNP) switch – circuit malfunctionWiring, PNP switch, TCM
P1755Controller area network (CAN) data bus – communication malfunctionWiring, electronic parking brake (EPB), ECM
P1760Transmission fluid pressure (TFP) control solenoid A – intermittent short circuitWiring, TFP control solenoid
P1774CAN data bus, TCM/selector lever control module – malfunctionWiring, selector lever control module
P1775Engine control module (ECM) – TCM signalWiring, ECM
P1776Engine control module (ECM) – TCM retard signalWiring, ECM
P1777CAN data bus, torque reduction – malfunctionWiring, TCM, ECM
P1780Transmission gear selection switch D-4 – circuit malfunctionWiring, selector cable adjustment, TR sensor, transmission shift control module, TCM
P1783Transmission over temperature conditionTransmission mechanical fault
P1788Transmission fluid pressure (TFP) control solenoid B – open circuitWiring, TFP control solenoid
P1789Transmission fluid pressure (TFP) control solenoid B – short circuitWiring, TFP control solenoid
P1793TCM, ignition power supply – circuit malfunctionWiring, relay
P1794Transmission control module (TCM) – signal malfunctionWiring, supply voltage, limp-home mode activated
P1795CAN data bus – level inconsistentWiring, ECM
P1796CAN data bus, TCM – malfunctionWiring, TCM
P1797CAN data bus, ECM/TCM – malfunctionWiring, TCM, ECM
P1798CAN data bus, TCM/instrument panel – malfunctionWiring, TCM, instrument panel
P1799CAN data bus, TCM/ABS/TCS control module – network malfunctionWiring, TCM, ABS/TCS control module
P1881Engine coolant ‘low’ warning lamp switch – circuit malfunctionWiring, engine coolant ‘low’ warning lamp switch