1996 Jaguar XJSFACTORY OEM SERVICE PROCEDURE

Connector Identification: 4.0L

DIAGNOSTIC TROUBLE CODE (DTC) IDENTIFICATION (4.0L) (1)

DTC (1) Circuit Affected Probable Cause
P0101 MAF Sensor Performance TP Sensor Voltage High But Undetected, Plugged Air Filter, Plugged Exhaust, Air Intake Leak, MAF Sensor, Open OrShort To Ground
P0102 MAF Sensor Ckt Voltage Low Plugged Air Filter, Plugged Exhaust, MAF Sensor, Open Or Short To Ground
P0103 MAF Sensor Ckt Voltage High Open In Ground Ckt, Short To Voltage Or MAF Sensor
P0112 Intake Air Temp. Sensor Ckt Voltage High IAT Sensor Disconnected, IAT Sensor, Open Or Short To Voltage
P0113 Intake Air Temp. Sensor Ckt Voltage Low IAT Sensor Or Short To Ground
P0116 Engine Coolant Temp. Sensor Range/Performance Low Coolant Level, Thermostat Stuck Open, Open Ckt Or IAT Sensor
P0117 Engine Coolant Temp. Sensor Voltage High ECT Sensor Disconnected, ECT Sensor, Open Ckt Or Short To Voltage
P0118 Engine Coolant Temp. Sensor Voltage Low Engine Overheating, Short To Ground Or ECT Sensor
P0122 TP Sensor Voltage Low TP Sensor Disconnected, TP Sensor, Open Ckt Or Short To Ground
P0123 TP Sensor Voltage High MAF Sensor Voltage Low But Undetected, TP Sensor, Open Ckt Or Short To Voltage
P0125 Excess Time To Enter Closed Loop Fuel Control Low Coolant Level, Thermostat Stuck Open, ECT Sensor Or Open Ckt
P0131 (2) Front HO2S Ckt Voltage Low HO2S Or Short To Ground
P0132 (2) Front HO2S Ckt Voltage High HO2S, Open Or Short To Voltage
P0133 (2) Front HO2S Slow Response HO2S Contaminated, HO2S Or Open Ckt
P0137 (3) Rear HO2S Ckt Voltage Low HO2S, Short To Ground, HO2S Connectors Reversed, HO2S Loose, Open Ckt Or Exhaust Leak
P0138 (3) Rear HO2S Ckt Voltage High HO2S Disconnected, HO2S, Open Ckt, Short To Voltage, Short To Ground Or HO2S Connectors Reversed
P0139 (3) Rear HO2S Slow Response HO2S Contaminated, HO2S Or Open Ckt
P0151 (4) Front HO2S Ckt Voltage Low HO2S Or Short To Ground
P0152 (4) Front HO2S Ckt Voltage High HO2S Disconnected, HO2S, Open Ckt Or Short To Voltage
P0153 (4) Front HO2S Slow Response HO2S Contaminated, HO2S Or Open Ckt
P0157 (5) Rear HO2S Ckt Voltage Low HO2S Or Short To Ground
P0158 (5) Rear HO2S Ckt Voltage High HO2S Disconnected, HO2S, Short To Ground, HO2S Connectors Reversed, Open Ckt Or Short To Voltage
P0159 (5) Rear HO2S Slow Response HO2S Contaminated, HO2S Or Open Ckt
P0171 Cyls. 1, 2 & 3 Too Lean Fuel Injector, Fuel Blockage, Engine Misfire, Intake Air Leak Or Exhaust Leak (Before Converter)
P0172 Cyls. 1, 2 & 3 Too Rich Fuel Injector, Engine Misfire Or Exhaust Leak (Before Converter)
P0174 Cyls. 4, 5 & 6 Too Lean Fuel Injector, Fuel Blockage, Engine Misfire, Intake Air Leak Or Exhaust Leak (Before Converter)
P0175 Cyls. 4, 5 & 6 Too Rich Fuel Injector, Engine Misfire Or Exhaust Leak (Before Converter)
P0201 No. 1 Injector Ckt Injector Disconnected, Open Or Short In Fuel Injector Ckt Or Fuel Injector
P0202 No. 2 Injector Ckt Injector Disconnected, Open Or Short In Fuel Injector Ckt Or Fuel Injector
P0203 No. 3 Injector Ckt Injector Disconnected, Open Or Short In Fuel Injector Ckt Or Fuel Injector
P0204 No. 4 Injector Ckt Injector Disconnected, Open Or Short In Fuel Injector Ckt Or Fuel Injector
P0205 No. 5 Injector Ckt Injector Disconnected, Open Or Short In Fuel Injector Ckt Or Fuel Injector
P0206 No. 6 Injector Ckt Injector Disconnected, Open Or Short In Fuel Injector Ckt Or Fuel Injector
P0300 Random Misfire Detected Fuel Contamination, Leaking Or Blocked Fuel Injector(s), Faulty Ignition System, Low Fuel Pressure, Low Compression Or Broken Valve Spring(s)
P0301 Misfire Cylinder No. 1 Detected See DTC P0300
P0302 Misfire Cylinder No. 2 Detected See DTC P0300
P0303 Misfire Cylinder No. 3 Detected See DTC P0300
P0304 Misfire Cylinder No. 4 Detected See DTC P0300
P0305 Misfire Cylinder No. 5 Detected See DTC P0300
P0306 Misfire Cylinder No. 6 Detected See DTC P0300
P0326 No. 1 Knock Sensor Range/Performance Contaminated Fuel, Carbon Build-Up, Engine Overheating Or Poor Wiring Harness Connections
P0327 No. 1 Knock Sensor Low Voltage Sensor Loose, Open Or Short To Ground In Sensor Ckt Or Knock Sensor
P0328 No. 1 Knock Sensor High Voltage Poor Wiring Harness Connections Or Knock Sensor
P0331 Knock Sensor No. 2 Range/Performance Contaminated Fuel, Carbon Build-Up, Engine Overheating Or Poor Wiring Harness Connections
P0332 No. 2 Knock Sensor Low Voltage Sensor Loose, Open Or Short To Ground In Sensor Ckt Or Knock Sensor
P0333 No. 2 Knock Sensor High Voltage Poor Wiring Harness Connections Or Knock Sensor
P0335 Crankshaft Position Sensor Ckt Incorrect CKP Sensor Installation, Open, Short To Ground, Short To Voltage Or CKP Sensor
P0336 Crankshaft Position Sensor Ckt Reluctor Ring Damaged, Foreign Material On CKP Sensor Face, Sensor Wiring Harness Or CKP Sensor
P0340 Camshaft Position Sensor Ckt Incorrect CMP Sensor Installation, CMP Sensor Wiring Harness Or CMP Sensor
P0400 EGR Temperature Sensor Ckt Open Ckt, EGR Temperature Sensor "Coked Up", EGR Valve Or Passage Ways Plugged Or EGR Temperature Sensor
P0411 Air Injection System (6) Air Pump Ckt Fault Or Air Pump
P0413 Air Injection System Air Injection System Relay Removed, Open Ckt, Air Injection System Relay Or Short To Battery
P0414 Air Injection System Air Injection System Relay Shorted To Ground
P0420 Catalyst System (Cyls. 1, 2 & 3) Exhaust Leak, Front HO2S, Intake Air Leak Or MAF Sensor
P0430 Catalyst System (Cyls. 4, 5 & 6) Exhaust Leak, Front HO2S, Intake Air Leak Or MAF Sensor
P0441 EVAP Control System EVAP Purge Valve Sticking, EVAP Purge Valve Hose Disconnected Or Plugged, EVAP Canister Vent Blocked, EVAP Purge Valve Or Air Pump Stuck On
P0442 EVAP Control System See DTC P0441
P0443 EVAP Control System Purge Valve EVAP Purge Valve Disconnected, Open Ckt, Short To Ground, Short To Voltage Or EVAP Purge Valve
P0446 EVAP Control System See DTC P0441
P0452 EVAP Control System See DTC P0441
P0453 EVAP Control System See DTC P0441
P0500 Vehicle Speed Sensor Ckt Open Or Short Ckt, Trans. Control Module Or ABS Wheel Speed Sensor
P0506 Idle Speed Control System (Low RPM) Idle Speed Control (ISC) Valve Disconnected, ISC Valve Passages Blocked, ISC Valve Or MAF Sensor Signal Fault (High Voltage)
P0507 Idle Speed Control System (High RPM) Idle Speed Control (ISC) Valve Disconnected, Intake Air Leak, ISC Valve Passages Blocked, ISC Valve Or MAF
P0603 Internal TCM Error (7)
P0605 Internal TCM Error (7)
P0702 Automatic Transmission (7)
P0706 Automatic Transmission (7)
P0712 Automatic Transmission (7)
P0713 Automatic Transmission (7)
P0721 Automatic Transmission (7)
P0722 Automatic Transmission (7)
P0726 Automatic Transmission (7)
P0727 Automatic Transmission (7)
P0743 Automatic Transmission (7)
P0748 Automatic Transmission (7)
P0753 Automatic Transmission (7)
P0758 Automatic Transmission (7)
P1137 (3) No Rear HO2S Response HO2S, HO2S Connectors Reversed, HO2S Loose, Open Ckt Or Exhaust Leak
P1138 (3) No Rear HO2S Response HO2S, Short To Ground Or HO2S Connectors Reversed
P1157 (5) No Rear HO2S Response HO2S, HO2S Connectors Reversed, Open HO2S Ckt, HO2S Loose Or Exhaust Leak (Before Converter)
P1158 (5) No Rear HO2S Response HO2S, Short To Ground Or HO2S Connectors Reversed
P1171 All Cylinders Too Lean Fuel Injector, Fuel Blockage, Low Fuel Pump Output Low Fuel Pressure, MAF Sensor Signal Fault
P1172 All Cylinders Too Rich Fuel Return Line Blocked, High Fuel Pressure, Leaking Fuel Injector Or MAF Sensor Signal Fault
P1176 Adaptive Fuel Metering Trim Too Lean Short To Ground In Fuel Injector Ckt, Fuel Filter Plugged, Fuel Leak, Low Fuel Pressure, Fuel Injectors, MAF Sensor Signal Fault
P1177 Adaptive Fuel Metering Trim Too Rich Blocked Fuel Return Line, Fuel Injector Leak, MAF Sensor Signal Fault, Incorrect MAF Sensor Installed (Non-Supercharged) Or Intake Air Leak (Supercharged)
P1178 Adaptive Fuel Metering Trim Too Lean Air Intake Leak, Low Fuel Pressure At Idle, Plugged Fuel Injector Or MAF Sensor Signal Fault
P1179 Adaptive Fuel Metering Trim Too Rich High Fuel Pressure At Idle, MAF Sensor Signal Fault Or Incorrect MAF Sensor Installed (Non-Supercharged)
P1187 Both Front HO2S Heater Ckts High Resistance In Both Front Heater Ckts, Open Ckt, MAF Sensor Signal Fault Or Ignition Fault (Retarded Timing)
P1188 Both Front HO2S Heater Ckts Open, Short To Ground, High Resistance In Both Front Heater Ckts Or Both HO2S
P1190 Both Front HO2S Heater Ckts High Battery Voltage, Short To Voltage, Short To Ground In Both HO2S Or Both HO2S
P1193 Both Rear HO2S Heater Ckts High Resistance In Both Rear Heater Ckts, Open Ckt, MAF Sensor Signal Fault Or Ignition Fault (Retarded Timing)
P1194 Both Rear HO2S Heater Ckts Open, Short To Ground, High Resistance In Both Rear Heater Ckts Or Both HO2S
P1196 Both Rear HO2S Heater Ckts High Battery Voltage, Short To Voltage, Short To Ground Or Both HO2S
P1199 Fuel Level Sensor Open, Short To Voltage Or Short To Ground In Instrument Cluster Or Fuel Level Sensor
P1201 No. 1 Fuel Injector Injector Disconnected, Open Or Short In Fuel Injector Ckt Or Fuel Injector
P1202 No. 2 Fuel Injector Injector Disconnected, Open Or Short In Fuel Injector Ckt Or Fuel Injector
P1203 No. 3 Fuel Injector Injector Disconnected, Open Or Short In Fuel Injector Ckt Or Fuel Injector
P1204 No. 4 Fuel Injector Injector Disconnected, Open Or Short In Fuel Injector Ckt Or Fuel Injector
P1205 No. 5 Fuel Injector Injector Disconnected, Open Or Short In Fuel Injector Ckt Or Fuel Injector
P1206 No. 6 Fuel Injector Injector Disconnected, Open Or Short In Fuel Injector Ckt Or Fuel Injector
P1313 Catalyst Damage Misfire Detected (Cyls. 1, 2 Or 3) Fuel Contamination, Leaking Or Blocked Fuel Injector(s), Faulty Ignition System, Low Fuel Pressure, Low Compression Or Broken Valve Spring(s)
P1314 Catalyst Damage Misfire Detected (Cyls. 4, 5 Or 6) See DTC P1313
P1315 Persistant Misfire (Cyls. 4, 5 Or 6) See DTC P1313
P1316 Misfire Rate Above Limit See DTC P1313
P1361 Ignition Coil Primary Ckt (Cyl. 1) Open Or Short To Ground In Primary Coil Ckt, CKP Sensor Or Ignition Coil
P1362 Ignition Coil Primary Ckt (Cyl. 2) See DTC P1361
P1363 Ignition Coil Primary Ckt (Cyl. 3) See DTC P1361
P1364 Ignition Coil Primary Ckt (Cyl. 4) See DTC P1361
P1365 Ignition Coil Primary Ckt (Cyl. 5) See DTC P1361
P1366 Ignition Coil Primary Ckt (Cyl. 6) See DTC P1361
P1371 Early Activation Ign. Coil (Cyl. 1) Coil Ckt Shorted Or Ignition Coil
P1372 Early Activation Ign. Coil (Cyl. 2) See DTC P1371
P1373 Early Activation Ign. Coil (Cyl. 3) See DTC P1371
P1374 Early Activation Ign. Coil (Cyl. 4) See DTC P1371
P1375 Early Activation Ign. Coil (Cyl. 5) See DTC P1371
P1376 Early Activation Ign. Coil (Cyl. 6) See DTC P1371
P1400 EGR Valve Position Ckt EGR Valve Sticking, Short Or Open In EGR Valve Position Sensor Signal Wire
P1401 EGR Valve Position Ckt Open, Short To Ground, Short To Voltage Or EGR Valve Position Sensor
P1408 EGR Temperature Sensor Ckt Short To Ground, EGR Temp. Sensor Wires Shorted Together Or EGR Temperature Sensor
P1409 EGR Valve Ckt Open Ckt, Short To Ground Or EGR Valve
P1440 EVAP Purge Valve Open See DTC P0441
P1441 EVAP Valve Ckt See DTC P0441
P1447 EVAP Valve Ckt See DTC P0441
P1448 EVAP Valve Ckt See DTC P0441
P1454 EVAP Valve Ckt See DTC P0441
P1508 Idle Speed Control Ckt Idle Speed Control (ISC) Valve Disconnected, Open Ckt Or ISC Valve
P1509 Idle Speed Control Ckt Idle Speed Control (ISC) Valve Or Short Ckt
P1514 PNP Switch High Load Neutral/Drive MAF Sensor Signal Fault (High Voltage), Short To Ground In PNP Switch Ckt Or Body Processor Module Fault
P1516 PNP Switch Neutral/Drive Short To Ground, Body Processor Module Fault, PNP Switch Ckt Or Vehicle Speed Sensor Signal
P1517 PNP Switch Cranking Neutral/Drive Open Or Short To Voltage Or Body Processor Module Fault
P1607 MIL Output Ckt PCM Failure
P1608 Automatic Transmission (7)
P1775 Transmission Control Module MIL Ckt (7)
P1776 Torque Reduction Request Signal (7) Trans. Control Module Fault, Shift Demands On A/T Requiring Torque Reduction
P1777 Torque Reduction Ckt (7) Trans. Control Module Fault, Open Ckt, Short To Ground Or To Voltage
P1780 Automatic Transmission (7)
P1781 Automatic Transmission (7)
P1782 Automatic Transmission (7)
P1785 Automatic Transmission (7)
P1790 Automatic Transmission (7)
P1791 Automatic Transmission (7)
P1792 Automatic Transmission (7)
P1794 Automatic Transmission (7)
P1796 Automatic Transmission (7)
(1) If codes appear other than those listed in table, verify code. If code is not listed, replace PCM.
(2) Front HO2S for cylinders No. 1, 2 and 3.
(3) Rear HO2S for cylinders No. 1, 2 and 3.
(4) Front HO2S for cylinders No. 4, 5 and 6.
(5) Rear HO2S for cylinders No. 4, 5 and 6.
(6) On XJ6 with VIN up to 734672 and XJS with VIN up to 199153, may be equipped with incorrect air pump-to-check valve hose causing blocked air flow. Check and replace hose as necessary.
(7) See appropriate article in TRANSMISSION SERVICING - A/T section.
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