Land Rover Defender: Vehicle Dynamic Suspension - Diagnosis and Testing
PRINCIPLES OF OPERATION
For additional information on the operation of the air suspension system, refer to the relevant section of the workshop manual.
INSPECTION AND VERIFICATION
WARNING: Before carrying out a road test, make sure the vehicle is safe to do so. Failure to follow this instruction may result in personal injury
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: Check and rectify basic faults before beginning diagnostic routines involving pinpoint tests
1. Verify the customer concern
2. Visually inspect for obvious signs of mechanical or electrical damage
Visual Inspection
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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. Use the approved diagnostic system or a scan tool to retrieve any diagnostic trouble codes (DTCs) before moving onto the symptom chart or DTC index
- Make sure that all DTCs are cleared following rectification
SYMPTOM CHART
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Air Line Connector
GENERAL PROCEDURES
ACTIVATION
CAUTIONS:
Before disconnecting any components, make sure the area is clean and
free from foreign material. When
disconnected all openings must be sealed.
Make sure
Air Suspension Manual Tight Tolerance Setting Mode
GENERAL PROCEDURES
ACTIVATION
NOTES:
If this procedure has been successful the instrument cluster will
emit 2 soft chimes 1 second after the
drivers door is closed. The instrument cluster will th
Ride Height Adjustments
GENERAL PROCEDURES
SPECIAL TOOL(S)
204-557B
Gauge, Ride height
CAUTIONS:
Make sure the wheels and tires, tie rod ends, suspension joints and
wheel bearings are free from damage,
wear and free pl
SEE MORE:
Battery Care Sheet
DESCRIPTION AND OPERATION
BATTERY CARE SHEET
Replacement startup and auxiliary batteries for service.
NOTE:
Fields marked with * are mandatory and must be completed.
Do the battery care requirements and record the results below.
Battery Report Form - In Service Batteries Only
DESCRIPTION AND OPER
Tool kit
Make sure the relevant safety warnings
have been read and understood before
using the tool kit.
The tool kit is located beneath the
loadspace floor panel.
The tool kit consists of the following:
Jack assembly.
Locking lug nut adapter.
Spare wheel alignment tool.
The jack assembly consists o
