Switch Monitor Test: Notes

WARNING: This page is about a different car, the 1995 Ford Aspire. However, it is still accessible from the selected car via links, so may be relevant.

NOTE: All switches must be tested individually. Allowing a switch to remain on while testing another will lead to false test results.

This test procedure checks input signals received by PCM from individual switches. Use following procedure to perform switch monitor test:

Turn engine off and allow it to cool.
Turn all accessories off.
Deactivate self-test.
Ensure transmission lever is in Neutral or Park.
Turn ignition on.