The brake lights won't come on when I brake. I replaced the brake switch. on 1994 Toyota Celica

How can I diagnose the problem

by in Berlin, MD on November 11, 2012
1 answer 3 comments
ANSWER by on November 11, 2012
You can diagnose it by having a wiring diagram of the circuit , and an understanding of how it works , and by then using that information along with a volt-ohmmeter to test for power , ground and continuity as needed.Or check the wire harness in trunk along the hinge for a broken wire.
COMMENT by on November 13, 2012
COMMENT by on November 15, 2012
was it a broken wire in the trunk harness?
COMMENT by on November 16, 2012
Don't know yet did not have time to test. I will post results soon.

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