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.
1997 Land Rover Defender 90 StandardFACTORY OEM SERVICE PROCEDURE
Control Units
CONTROL UNITS
| Component | Component Location |
|---|---|
| Emission Maintenance Reminder Control Unit | Behind front of center console. |
| Engine Control Module | At right rear of engine compartment. See Figure . |
| Immobilization ECU | Behind instrument cluster. |
| Off-Road Detection ECU | Under right front seat. |
| Relay Module | At right rear of engine compartment. See Figure . |
| Warning Light Check Unit | Behind dash trim panel. |
Factory Service Tools
Use the Manual With the Right Hardware
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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.