Discovery Series II
WARNING: This page is about a different car, the 2000 Land Rover Range Rover, 2000 Land Rover Discovery, 1999 Land Rover Range Rover, and 1999 Land Rover Discovery. However, it is still accessible from the selected car via links, so may be relevant.
Diagnostic communications line for the cruise control system is between cruise control ECU 18-pin connector terminal No. 16 (Pink wire) and 16-pin diagnostic connector terminal No. 7 (Pink wire). The following system information is available from the cruise control ECU using a Range Rover TestBook or OBD II scan tool:
- Reason for last switch off, which was due to an unacceptable speed input.
- Detected speed signal.
- Below minimum speed threshold.
- Current vehicle speed.
- Recorded SET road speed.
Cruise control ECU ground circuit is between ECU 18-pin connector terminal No. 18 (Black wire) and ground connector located behind right kick panel. Measure resistance (backprobe connector) between ground and cruise control ECU corrector terminal No. 18 (Black wire). Resistance should be less than 0.5 under all conditions. Repair as necessary.