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Home >> Land Rover >> 2012 >> LR4 HSE Lux >> Repair and Diagnosis >> Engine Mechanical >> Starter >> Starting System >> Starting System (V8 5.0L Petrol) >> Diagnostic Procedures >> Starting System - (Vehicles With: Smart Key) >> Inspection And Verification

Inspection And Verification

  1. Verify the customer concern.
  2. Visually inspect for obvious signs of mechanical or electrical damage.

    Visual Inspection 

    Mechanical Electrical
    • Steering column
    • Brake pedal
    • Smart key
    • Steering Wheel
    • Fuses
    • Harnesses and connectors
    • Warning lamp operation
    • Smart key operation
    • Engine start operation
  3. If an obvious cause for an observed or reported concern is found, correct the cause (if possible) before proceeding to the next step.
  4. If the cause is not visually evident, check for Diagnostic Trouble Codes (DTC's) and refer to the DTC Index.
CAUTION: Diagnosis by substitution from a donor vehicle is NOT  acceptable. Substitution of control modules does not guarantee confirmation of a fault, and may also cause additional faults in the vehicle being tested and/or the donor vehicle
NOTE: If the control module or a component is suspect and the vehicle remains under manufacturer warranty, refer to the warranty policy and procedures manual (section B1.2), or determine if any prior approval program is in operation, prior to the installation of a new module/component.
NOTE: Generic scan tools may not read the codes listed, or may read only 5-digit codes. Match the 5 digits from the scan tool to the first 5 digits of the 7-digit code listed to identify the fault (the last 2 digits give extra information read by the manufacturer-approved diagnostic system)
NOTE: When performing voltage or resistance tests, always use a digital multimeter accurate to three decimal places and with a current calibration certificate. When testing resistance, always take the resistance of the digital multimeter leads into account
NOTE: Check and rectify basic faults before beginning diagnostic routines involving pinpoint tests
NOTE: Inspect connectors for signs of water ingress, and pins for damage and/or corrosion
NOTE: If diagnostic trouble codes are recorded and, after performing the pinpoint tests, a fault is not present, an intermittent concern may be the cause. Always check for loose connections and corroded terminals

Symptom Chart 

Symptom - Message Displayed Symptom - Possible Cause Action
Smart key not found - Refer to handbook Ignition mode fails to switch on Refer to Pinpoint Test A .
NOTE: Back up start - 10MY onwards
Smart key not found - Refer to handbook
Ignition mode fails to switch on Refer to Pinpoint Test B .
Press start and brake Engine fails to crank Refer to Pinpoint Test C .
Steering column locked Ignition switches off after 3 seconds Refer to Pinpoint Test D .
NOTE: For diesel engines
Engine still not cranking
Ambient temperatures below zero Refer to Pinpoint Test E .