Land Rover Discovery: Steering Column Diagnosis and
Testing
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Inspection and verification
PRINCIPLE OF OPERATION
For a detailed description of the Steering System and operation, refer to the
relevant Description and Operation section of the workshop manual
Pinpoint tests
NOTE:
The steering wheel heater will not operate if the engine is not
running.
NOTES:
An infra-red thermometer is used during this test.
The steering wheel temperature should have in
REMOVAL
NOTES:
Removal steps in this procedure may contain installation details.
The steering wheel is shown removed for clarity.
Left hand drive illustration(s) shown, Right hand drive is similar
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REMOVAL
NOTE:
The front bumper mounting is installed in conjunction with:
Front bumper cover
Front bumper
Hood latch panel
Radiator
Windshield washer reservoir
The front bumper mounting is serviced as indicated
Before commencing this procedure make sure that you are aware of
all Health
If a heating request is received and the ambient air temperature is less than
or equal to 5ºC (41ºF), the Automatic Temperature Control Module (ATCM)
transmits a 'supplemental heat' message to the Fuel Fired Booster Heater Control
Module (FFBHCM) on the LIN bus. The control module responds by
ret