Cruise control – fault diagnosis
- Make
- Land Rover
- Model
- Range Rover P38 Electrical Troubleshooting Manual
- Year
- 1997–1999
- Section
- Fault diagnosis › Cruise control – fault diagnosis
Cruise controlCruise control – fault diagnosis
CRUISE CONTROL – FAULT DIAGNOSIS
Test A 1A
CONDITIONS Ignition Switch
Position: II
Cruise Control Switch
On
RESULTS
Within 1.5V of battery voltage
OK
2A
2A
CONDITIONS Ignition Switch
Position: 0
RESULTS
Less than 1 ohm
OK PROBLEM CAUSE - B Wire
V B
C243
Z121 OW Cruise Control ECU
OK GO TO TEST B
B
C243
Z121 Cruise Control ECU
OK
3A
Parts & tools for this job For 1997 Land Rover Range Rover
- TOOLTorque wrenchSearch: 3/8 inch torque wrench
- TOOLSocket setSearch: socket set metric
- BOOKHaynes manualSearch: Haynes manual Land Rover Range Rover
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