LEMON Manuals: Even more car manuals for everyone
Home >> Jaguar >> 2010 >> XJ Base >> Repair and Diagnosis >> Electrical >> Starter >> Starting System - V8 5.0L Petrol/V8 S/C 5.0L Petrol -- XJ/X351 >> Starting System - V8 5.0L Petrol/V8 S/C 5.0L Petrol >> Diagnosis And Testing >> Symptom Chart

Symptom Chart

SYMPTOM POSSIBLE CAUSES ACTION
The engine does not crank (starter motor does not  turn)
  • Gear selector not in P  or N  position (vehicles with automatic transmission)
  • Battery
  • Starter relay
  • Invalid key code received by Central Junction Box (CJB)
  • Harness/Connectors
  • Starter motor
  • Ignition switch
  • Generator
  • Transmission Control Module (TCM)
  • Engine Control Module (ECM)
  • Engine seized
Make sure the gear selector is in the P  or N  position and correctly adjusted. Check the battery condition and state of charge. Check for DTCs indicating an immobilizer fault. Check the starter motor relay, ignition switch and generator circuits. Refer to the electrical guides. Check for TCM and ECM DTCs. Check that the engine turns freely.
The engine does not crank (starter motor does  turn)
  • Starter motor installation
  • Starter motor
  • Flywheel/Drive plate ring gear
Check the starter motor installation (fasteners tight, starter motor square to engine, etc). Check the flywheel/drive plate ring gear teeth for damage, foreign objects, etc.
Engine cranks too slowly
  • Battery
  • Harness/Connectors
  • Starter motor
  • Oil grade
Check the battery condition and state of charge. Check the starter motor circuits. Refer to the electrical guides. Check the engine oil grade and condition.
Engine cranks too fast
  • Low engine compression
Check the engine compressions.
Excessive starter motor noise
  • Starter motor
  • Flywheel/Drive plate ring gear
  • Starter motor installation/casing
Check the starter motor installation (fasteners tight, motor square to engine, etc). Check the starter motor casing condition. Check the flywheel/drive plate ring gear teeth for damage, foreign objects, etc.
ECO (stop/start) system inoperative
  • ECO system inhibited
  • ECO system fault
NOTE: "ECO STOP/START FAULT" will be displayed in the instrument cluster message centre when the system is inoperative due to a fault.
  • Refer to the ECO System Inhibits table for possible inhibit conditions
    • ECO system inhibited due to owner error: Explain/demonstrate the ECO system operation to the owner
    • ECO system inhibited due to battery condition: Using the manufacturer approved diagnostic system, perform the Power Supply Service Mode Diagnostic routine
  • Using the manufacturer approved diagnostic system, check the engine control module for related DTCs and refer to the relevant DTC index
  • Automatic/ECO stop/start system inhibited due to a DTC clear performed and a drive cycle not completed: Road test the vehicle between 48-80 km/h (30-50 mph) for 2 to 3 minutes, allow the engine to idle, auto stop/start will now activate