Inspection And Verification

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 checked and/or the donor vehicle.

NOTE:

If the control module or a component is at fault and the vehicle remains under manufacturer warranty, refer to the Warranty Policy and Procedures manual, or determine if any prior approval program is in operation, prior to the installation of a new module/component.
When performing voltage or resistance tests, always use a digital multimeter accurate to three decimal places, and with an up-to-date calibration certificate. When testing resistance always take the resistance of the digital multimeter leads into account.
All diagnostic equipment should comply with local legislation.
Relevant diagnostic equipment should be regularly checked and calibrated according to the manufacturer's instructions.
The workshop should be equipped with a full range of general equipment which is to be kept in good order and available to all suitably trained staff.
Diagnostic equipment must meet the JLR Minimum Standards for general equipment as outlined in the service information.
Check and rectify basic faults before beginning diagnostic routines involving pinpoint tests.

Verify the customer concern

Visually inspect for obvious signs of damage and system integrity

VISUAL INSPECTION

MECHANICAL	ELECTRICAL
Check all audio system modules Compact disc player jammed, not loading Scratched/dirty compact discs Speakers Switch(s) stuck or damaged Loose items in door pockets or glove box rattling	Fuses Electrical harnesses Harness connectors Battery condition, state of charge

If an obvious cause for an observed or reported concern is found, correct the cause (if possible) before proceeding to the next step
If the cause is not visually evident, verify the symptom and refer to the Symptom Chart, alternatively check for Diagnostic Trouble Codes (DTCs) and refer to the DTC Index
Check JLR claims submission system for open campaigns. Refer to the corresponding bulletins and SSMs which may be valid for the specific customer complaint and complete the recommendations as required.