Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
2000 Land Rover Range Rover SEFACTORY OEM SERVICE PROCEDURE
Power Circuits (Discovery Series II)
- Turn ignition off. Using a backprobe set, check for voltage between ground and ECM Black 9-pin connector C0634 terminal No. 7 (Purple/Yellow wire). If battery voltage is present, go to next step. If battery voltage is not present, check for open or short in Purple/Yellow wire between ECM and fuse No. 12 (20-amp) located in engine compartment fuse/relay box. See Figure and Figure . See WIRING DIAGRAMS . Perform repairs as necessary.
- Turn ignition off. Using a backprobe set, measure voltage between ground and ECM Black 24-pin connector C0635 terminal No. 23 (Blue/Red wire). See WIRING DIAGRAMS . If battery voltage does not exist, ensure inertia switch is closed. If necessary, reset inertia switch and recheck for voltage. If inertia switch is closed, check circuit between ECM, main relay, inertia switch and fuse No. 13 (15-amp), located in engine compartment fuse/relay box. Perform repairs as necessary.
Factory Service Tools
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.
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