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91 Formula - lights, power locks, auto rear hatch not working

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Old Feb 28, 2014 | 05:45 AM
  #1  
nhra-trans-am's Avatar
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From: Orange County, CA
91 Formula - lights, power locks, auto rear hatch not working

Trying to figure out the problem on my 91 formula. Car is a 350 TPI and auto trans.

I went to drive the car and suddenly all these issues came up. I did some searching and only found one thread with the same symptoms, but there was no conclusion as to what the problem was.

The headlight and interior/gauge lights don't work. The headlights aren't even getting power. The door locks and power rear hatch release don't work.

the car starts right up and drives fine. The gauges themselves still work and the power windows still work. Hoping that this is a simple fix. I looked at the fuses and everything looked fine. Even tried swapping/ replacing the fuses to be sure.

Let me know what you think. Thanks for the help.
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Old Mar 3, 2014 | 05:05 PM
  #2  
NINÅ's Avatar
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Joined: Jan 2006
Posts: 3,341
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From: Mooresville NC
Car: LOWERED ♦ CRIMSON METALFLAKE
Engine: ► 400 KUBES ◄
Transmission: 765R4
Axle/Gears: EATON POSI 4.56
NHRA Will Say . . . . . . . . .

Sounds like you blew a Fusible Link.

Fusible Links usually look like a one inch plastic rod in line with the wire and are located near the battery or at the starter.

Using a test light
(the type for testing for voltage, not a continuity tester) probe both sides one side at a time.

If you find a Link with power on one side only — it’s bad.


Happy Racing!



If Your Communications Antenna Is Not Shaking At Idle, Your Cam Is Too Mild

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