- Turn ignition off. Disconnect ECM harness connector EM14. Check continuity between ECM harness connector EM14 terminal No. 4 (Black/Pink wire) and ground point G100 (on XJ Series), or G105 (on XK8). See WIRING DIAGRAMS article. (Схема №3) If continuity exists, go to next step. If continuity does not exist, repair open ground circuit and retest system.
- Disconnect ECM harness connector EM10. Measure resistance between ECM harness connector terminal No. 23 (Black/Pink wire) and ground point G100 (on XJ Series), or G105 (on XK8). If continuity exists, system is okay. If continuity does not exist, repair open ground circuit and retest system.
Home/Jaguar/XJR/Jaguar XJR II (1994-2003)/Repair manual/Testing & Diagnostics/DTC P1243: ANALOG GROUND MALFUNCTION
Contents
Wiring diagrams Section: Testing & Diagnostics- Engine Controls - Basic Diagnostic Procedures: Diagnosis
- Engine Controls - Basic Diagnostic Procedures: Other
- Engine Controls - Self-Diagnostics: Overview
- Engine Controls - Self-Diagnostics: Diagnosis
- Engine Controls - Self-Diagnostics: Component Locations
- Engine Controls - Self-Diagnostics: Other
- DTC P0101: MASS AIRFLOW SENSOR PERFORMANCE
- DTC P0102, P0103 & P1104: MASS AIRFLOW SENSOR CIRCUIT
- DTC P0111 & P0112: INTAKE AIR TEMPERATURE SENSOR
- DTC P0113: INTAKE AIR TEMPERATURE SENSOR
- DTC P0116: ENGINE COOLANT TEMPERATURE SENSOR PERFORMANCE & DTC P0125: INSUFFICIENT COOLANT TEMPERATURE FOR CLOSED LOOP FUEL CONTROL
- DTC P0117: ENGINE COOLANT TEMPERATURE SENSOR CIRCUIT LOW INPUT (XJ SERIES)
- DTC P0117: ENGINE COOLANT TEMPERATURE SENSOR CIRCUIT LOW INPUT (XK8)
- DTC P0118: ENGINE COOLANT TEMPERATURE SENSOR CIRCUIT HIGH INPUT (XJ SERIES)
- DTC P0118: ENGINE COOLANT TEMPERATURE SENSOR CIRCUIT HIGH INPUT (XK8)
- DTC P0121: THROTTLE POSITION SENSOR "A" PERFORMANCE
- DTC P0122: THROTTLE POSITION SENSOR "A" VOLTAGE LOW OR DTC P0222: THROTTLE POSITION SENSOR "B" VOLTAGE LOW
- DTC P0123: THROTTLE POSITION SENSOR "A" VOLTAGE HIGH OR DTC P0223: THROTTLE POSITION SENSOR "B" VOLTAGE HIGH
- DTC P0125: INSUFFICIENT COOLANT TEMPERATURE FOR CLOSED LOOP FUEL CONTROL
- DTC P0131, P0132 & P0135: HO2S CIRCUIT LOW/HIGH VOLTAGE OR HEATER CIRCUIT MALFUNCTION (BANK NO. 1, SENSOR NO. 1)
- DTC P0133: HO2S SENSOR CIRCUIT SLOW RESPONSE (BANK NO. 1, SENSOR NO. 1)
- DTC P0135: HO2S HEATER CIRCUIT MALFUNCTION (BANK NO. 1, SENSOR NO. 1)
- DTC P0137 & P0138: OXYGEN SENSOR LOW/HIGH VOLTAGE (BANK NO. 1, SENSOR NO. 2)
- DTC P0140: OXYGEN SENSOR NO SIGNAL OR POOR SIGNAL DETECTED (BANK NO. 1, SENSOR NO. 2)
- DTC P0151, P0152 & P0155: HO2S SENSOR CIRCUIT LOW/HIGH VOLTAGE OR HEATER CIRCUIT MALFUNCTION (BANK NO. 2, SENSOR NO. 1)
- DTC P0153: HO2S SENSOR CIRCUIT SLOW RESPONSE (BANK NO. 2, SENSOR NO. 1)
- DTC P0155: HO2S SENSOR HEATER CIRCUIT MALFUNCTION (BANK NO. 2, SENSOR NO. 1)
- DTC P0157 & P0158: OXYGEN SENSOR CIRCUIT LOW/HIGH VOLTAGE (BANK NO. 2, SENSOR NO. 2)
- DTC P0160: OXYGEN SENSOR NO SIGNAL OR POOR SIGNAL DETECTED (BANK NO. 2, SENSOR NO. 2)
- DTC P0171, P0172, P0174 OR P0175: SYSTEM TOO LEAN/RICH
- DTC P0201-P0208: INJECTOR CIRCUIT
- DTC P0222: THROTTLE POSITION SENSOR "B" VOLTAGE LOW
- DTC P0223: THROTTLE POSITION SENSOR "B" VOLTAGE HIGH
- DTC P0300-P0308, P1313, P1314 & P1316: MISFIRE
- DTC P0327, P0328, P0332 & P0333: KNOCK SENSOR
- DTC P0335: CRANKSHAFT POSITION SENSOR CIRCUIT
- DTC P0340: CAMSHAFT POSITION SENSOR CIRCUIT OR P1336: CRANKSHAFT OR CAMSHAFT POSITION SENSOR PERFORMANCE
- DTC P0351-P0358: IGNITION COIL CIRCUIT MALFUNCTION
- DTC P0400: EGR FLOW MALFUNCTION (XJR)
- DTC P0405: EGR SENSOR CIRCUIT LOW (XJR)
- DTC P0406: EGR SENSOR CIRCUIT HIGH (XJR)
- DTC P0420 & P0430: CATALYST EFFICIENCY BELOW THRESHOLD
- DTC P0441: EVAP CONTROL SYSTEM (XK8)
- DTC P0442: EVAP CONTROL SYSTEM LEAK DETECTED (XJ SERIES)
- DTC P0444 & P0445: EVAP CONTROL SYSTEM PURGE VALVE (XJ SERIES)
- DTC P0444 & P0445: EVAP CONTROL SYSTEM PURGE VALVE (XK8)
- DTC P0447 & P0448: EVAP CONTROL SYSTEM CANISTER CLOSE VALVE CIRCUIT (XJ SERIES)
- DTC P0452 & P0453: FUEL TANK PRESSURE SENSOR
- DTC P0460: FUEL LEVEL SENSOR
- DTC P0506 & P0507: IDLE SPEED CONTROL SYSTEM
- DTC P0560: SYSTEM VOLTAGE MALFUNCTION
- DTC P0603: INTERNAL ECM ERROR
- DTC P1104: MASS AIRFLOW SENSOR
- DTC P1112: INTAKE AIR TEMPERATURE SENSOR NO. 2 HIGH VOLTAGE (XJR)
- DTC P1113: INTAKE AIR TEMPERATURE SENSOR NO. 2 LOW VOLTAGE (XJR)
- DTC P1224: ELECTRONIC THROTTLE CONTROL POSITION ERROR
- DTC P1226: MECHANICAL GUARD CIRCUIT RANGE
- DTC P1227 & P1228: MECHANICAL GUARD CIRCUIT LOW OR HIGH INPUT
- DTC P1229: THROTTLE CONTROL CIRCUIT MALFUNCTION
- DTC P1230: FUEL PUMP RELAY MALFUNCTION
- DTC P1240: SENSOR POWER SUPPLY MALFUNCTION
- DTC P1241-P1242: SENSOR POWER SUPPLY LOW OR HIGH INPUT
- DTC P1243: ANALOG GROUND MALFUNCTION
- DTC P1245-P1246: CRANK SIGNAL LOW OR HIGH INPUT
- DTC P1313, P1314 & P1316: MISFIRE, CATALYST DAMAGE/EXCESS EMISSIONS
- DTC P1336: CAMSHAFT POSITION SENSOR (CMP) CIRCUIT
- DTC P1367: IGNITION SYSTEM FAILURE GROUP 1
- DTC P1368: IGNITION SYSTEM FAILURE GROUP 2
- DTC P1392 & P1397: VARIABLE VALVE TIMING SOLENOID LOW INPUT
- DTC P1393 & P1398: VARIABLE VALVE TIMING SOLENOID HIGH INPUT
- DTC P1396 VARIABLE VALVE TIMING (VVT) SOLENOID "B" MALFUNCTION
- DTC P1397: VARIABLE VALVE TIMING SOLENOID "B" LOW INPUT
- DTC P1398: VARIABLE VALVE TIMING SOLENOID "B" HIGH INPUT
- DTC P1474: INTERCOOLER COOLANT PUMP RELAY MALFUNCTION
- DTC P1516: PARK/NEUTRAL MALFUNCTION
- DTC P1609: INTERNAL ECM ERROR
- DTC P1611: THROTTLE TARGET MALFUNCTION
- DTC P1612: THROTTLE OFFSET MALFUNCTION
- DTC P1646: SECONDARY FUEL PUMP RELAY MALFUNCTION (XJR)
- Engine Controls - Trouble Shooting - No Codes: Diagnosis
- Engine Controls - Trouble Shooting - No Codes: Other
- Diagnostic Trouble Codes - Powertrain: Diagnosis
- Diagnostic Trouble Codes - Powertrain: Other
- DTC P0420: Catalyst efficiency below threshold - A bank
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