Land Rover Defender: Headlamp Leveling
DIAGNOSIS AND TESTING
PRINCIPLE OF OPERATION
For a detailed description of the headlamp leveling system and operation,
refer to the relevant description and
operation section of the workshop manual. REFER to: Exterior Lighting (Exterior
Lighting, Description and
Operation).
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.
NOTES:
- If the control module or a component may be at fault 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.
- 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.
- 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
- 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
SYMPTOM CHART
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DIAGNOSIS AND TESTING
PRINCIPLE OF OPERATION
For a detailed description of the exterior lighting system and operation,
refer to the relevant description and operation
section of the workshop manual.
DIAGNOSIS AND TESTING
PRINCIPLE OF OPERATION
For a detailed description of the exterior lighting system and operation,
refer to the relevant description and operation
section of the workshop manual.
DIAGNOSIS AND TESTING
PRINCIPLE OF OPERATION
For a detailed description of the exterior lighting system and operation,
refer to the relevant description and operation
section of the workshop manual.
SEE MORE:
REMOVAL AND INSTALLATION
REMOVAL
CAUTION:
Do not use metal tools during this operation, removal of the component(s) must
be completed with a plastic
trim tool.
NOTES:
This procedure contains some variation in the illustrations depending
on the vehicle specification, but the
essential informati
REMOVAL AND INSTALLATION
SPECIAL TOOL(S)
JLR-303-1630
Locking Tool, Crankshaft Pulley
JLR-303-1635
Camshaft Setting Tool
JLR-303-1636
Locking Tool, Variable Camshaft Timing Actuator /
Unit
JLR-303-1656
Crank Rotation Tool
PART(S)
REMOVAL
CAUTION:
Before disconnecting any components, make sure
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