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Home >> Land Rover >> 2022 >> Defender 90 S >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 30 (Starting System - V8 S/C 5.0L Petrol -- Defender/L663) >> Starting System - V8 S/C 5.0L Petrol >> Diagnosis And Testing >> Starting System - V8 S/C 5.0L Petrol (G2847134) >> Symptom Chart

Symptom Chart

WARNING: This page is about a different variant/trim than selected.
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/recognized
  • Starter relay circuit open circuit, high resistance
  • 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 DTC  s and refer to the relevant DTC  index
  • Using the Jaguar Land Rover approved diagnostic equipment, check the transmission control module for related DTC  s 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 recognized
  • Refer to the electrical circuit diagrams and check the starter relay circuit for open circuit, high resistance. Repair the wiring harness or install a new starter relay as necessary
  • Refer to the electrical circuit diagrams and check the starter motor ground circuit for open circuit, high resistance. Repair the wiring harness as necessary
  • Refer to the electrical circuit 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 electrical circuit 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)
  • 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 electrical circuit diagrams and check the starter motor ground circuit for open circuit, high resistance. Repair the wiring harness as necessary
  • Refer to the electrical circuit 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 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 electrical circuit diagrams and check the starter motor ground circuit for open circuit, high resistance. Repair the wiring harness as necessary
  • Refer to the electrical circuit 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
Excessive starter motor noise
  • Starter motor incorrectly installed
  • Starter motor internal failure
  • 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 drive plate ring gear teeth for damage, foreign objects, etc. Rectify as necessary
Auto Stop/Start system inoperative (Warning light illuminated white)
  • 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 center 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 DTC  s and refer to the relevant DTC  index