Pull each bulb, and use your Ohm meter to check continuity from each pin of the bulb socket to chassis ground. You should get a ground on one pin, but not the other.
Whichever bulb socket has continuity to ground on both pins is your winner, and you'll need to trace that circuit's wiring until you find the problem.
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1982 Z28 w/ '01 LS1 + T56, TR224 cam, Katech oil pump, JWIS chain
Last edited by crainholio; 08-23-2008 at 02:31 PM.
Reason: edited for clarity
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