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Originally Posted by Nomake Wan
Do your turn signals cause all your lights to dim?
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No. That's definitely abnormal.
Sometimes a turn signal or brake light bulb will blow and become shorted. Usually when that happens you'll see the blink rate change, though. But I'd still suggest taking a close look at all of those bulbs.
Does this happen when the engine is running, or just on battery?
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And what else is on the turn signal circuit?
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Gee, I just noticed that the wiring diagrams for 92 through 95 are missing the turn signal page. Or else that circuit is cleverly hidden within another page.
Going by the 96 diagram, it looks like the output of the flasher module connects to just to the four outside turn signal bulbs and the two indicators on the dash. The flasher is powered by fuse #1 (inside).
Fuse #1 also:
- Powers the back-up (reverse) lights
- Is one of the supplies going into the A/T shift lock control unit
The hazard switch powers the flasher module from fuse #22 (under the hood), and bridges both the L and R side bulbs so they all flash together.
The shift lock solenoid and key lock solenoids are two good candidates for things that might be stuck 'on' and draining the battery.