BE/Body Electrical System — Inspection of Back Door AND/OR Engine Hood Courtesy Switch Circuit, page 94

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INSPECTION OF BACK DOOR AND/OR ENGINE HOOD COURTESY SWITCH CIRCUIT.

Turn ignition switch off.

COMPUTER

Disconnect computer connector and inspect connector on wire harness side as follows.

INSPECT BACK DOOR COURTESY SWITCH CIRCUIT
Close engine hood.
* Is there continuity between terminal 1 and ground with back door opened?

Yes

No
Open circuit in back door courtesy switch circuit.

INSPECT ENGINE HOOD COURTESY SWITCH CIRCUIT
Close back door.
Is there continuity between terminal 1 and ground with engine hood opened?

Yes

No
Open circuit in engine hood courtesy switch circuit.

Replace computer.

*: This circuit includes the diode. If the circuit shows no continuity, change the positive and negative probes and recheck the circuit.