1. Using a J 39200 Digital Multi-Meter, backprobe between body control module (BCM) connector C1 terminal C and the ground.
2. While observing the J 39200 Digital Multi-Meter, move either door lock switch to the LOCK position.

Is there continuity?

0 ohms

Go to Step 2

Go to Step 3

1. Test for a poor connection at BCM connector C1 terminal C.
2. If OK, replace the BCM. Refer to Body Control Module Replacement .

Is the repair complete?

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System OK

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Repair the open in circuit 780, between the BCM and S267.

Is the repair complete?

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System OK

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