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Home >> Jaguar >> 2015 >> XFR-S >> Repair and Diagnosis >> External Pages >> Different car >> Section 95 (Starting System - V6 S/C 3.0L Petrol -- XF/X250) >> Starting System - V6 S/C 3.0L Petrol >> Diagnosis And Testing >> Starting System >> Symptom Chart

Symptom Chart

WARNING: This page is about a different car, the 2015 Jaguar XF, 2014 Jaguar XF, and 2013 Jaguar XF. However, it is still accessible from the selected car via links, so may be relevant.
SYMPTOM POSSIBLE CAUSES ACTION
The engine does not crank (starter motor does not turn)
  • Battery/charging system fault
  • Engine system fault
  • Transmission fault
  • Transmission control switch not set to Park or Neutral
  • Smart key not present/recognised
  • Starter relay fault
  • Starter motor ground circuit open circuit, high resistance
  • Starter motor solenoid power circuit short circuit to ground, open circuit, high resistance
  • Starter motor power circuit short circuit to ground, open circuit, high resistance
  • Engine seized
  • Refer to the relevant service information and check the battery and charging system. Rectify as necessary
  • Using the Jaguar Land Rover approved diagnostic equipment, check the powertrain control module for related DTCs and refer to the relevant DTC index
  • Using the Jaguar Land Rover approved diagnostic equipment, check the transmission control module for related DTCs and refer to the relevant DTC index
  • Set the transmission control switch to Park or Neutral and retest
  • Check that the smart key is present and recognised
  • Check the operation of the starter relay. Rectify as necessary
  • Refer to the applicable SYSTEM WIRING DIAGRAMs and check the starter motor ground circuit for open circuit, high resistance. Repair the wiring harness as necessary
  • Refer to the applicable SYSTEM WIRING DIAGRAMs and check the starter motor solenoid power circuit for short circuit to ground, open circuit, high resistance. Repair the wiring harness or install a new starter motor solenoid as necessary
  • Refer to the applicable SYSTEM WIRING DIAGRAMs and check the starter motor power circuit for short circuit to ground, open circuit, high resistance. Repair the wiring harness or install a new starter motor as necessary
  • Check that the engine turns freely. Rectify as necessary
The engine does not crank (starter motor does turn)
  • Starter motor incorrectly installed
  • Starter motor internal failure
  • Flywheel/drive plate ring gear damaged
  • Check the installation of the starter motor. Rectify as necessary
  • Check the operation of the starter motor. Rectify as necessary
  • Check the flywheel/drive plate ring gear teeth for damage, foreign objects, etc. Rectify as necessary
Engine cranks too slowly
  • Battery/charging system fault
  • Starter motor ground circuit open circuit, high resistance
  • Starter motor power circuit open circuit, high resistance
  • Starter motor internal failure
  • Engine oil grade incorrect
  • Refer to the relevant service information and check the battery and charging system. Rectify as necessary
  • Refer to the applicable SYSTEM WIRING DIAGRAMs and check the starter motor ground circuit for open circuit, high resistance. Repair the wiring harness as necessary
  • Refer to the applicable SYSTEM WIRING DIAGRAMs and check the starter motor power circuit for open circuit, high resistance. Repair the wiring harness as necessary
  • Check the operation of the starter motor. Rectify as necessary
  • Check the engine oil grade. Rectify as necessary
Engine cranks too fast
  • Timing chain failure
  • Engine cylinder compressions too low
  • Check the integrity of the timing chain. Rectify as necessary
  • Refer to the relevant service information and check the engine cylinder compressions. Rectify as necessary
Starter motor excessively noisy
  • Starter motor incorrectly installed Starter motor internal failure
  • Flywheel/drive plate ring gear damaged
  • Check the installation of the starter motor. Rectify as necessary Check the operation of the starter motor. Rectify as necessary
  • Check the flywheel/drive plate ring gear teeth for damage, foreign objects, etc. Rectify as necessary
Auto stop/start system inoperative
  • Auto stop/start system inhibited
    • Driver error/expectation
    • Recent DTC clear
    • System fault
  • Auto stop/start system fault
NOTE: 'AUTO STOP/START FAULT' will be displayed in the instrument cluster message centre when the system is inoperative due to a fault.
  • Refer to the AUTO STOP/START SYSTEM INHIBITS  table for possible inhibit conditions.
    • Auto stop/start system inhibited due to driver error/expectation: Explain/demonstrate the auto stop/start system to the driver
    • Auto stop/start system inhibited due to a recent DTC clear (and a drive cycle not completed): Road test the vehicle at a speed of 48 to 80 km/h (30 to 50 mph) for 2 to 3 minutes, allow the engine to idle, auto stop/start will now activate
    • Auto stop/start system inhibited due to battery condition: Using the Jaguar Land Rover approved diagnostic equipment, perform routine - Power Supply Service Mode Diagnostic Routine
  • Using the Jaguar Land Rover approved diagnostic equipment, check the powertrain control module for related DTCs and refer to the relevant DTC index