Electronics Need help wiring something up? Thinking of adding an electrical component to your car? Need help troubleshooting that wiring glitch?

Only headlights work, no acc, no ignition. Fusible link?

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Old Aug 1, 2021 | 01:52 PM
  #1  
Banks4004's Avatar
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Car: 1990 Camaro
Engine: 5.0
Transmission: T5 WC
Axle/Gears: 3.42
Only headlights work, no acc, no ignition. Fusible link?

Hi all. My 90 RS 5.0 5MT turned off (right when I parked it thankfully) and now when I turn the ignition nothing happens. I have no electronics working other than headlights. The ignition switch had been working 100% with no flakiness (I also wiggled it, turned steering wheel etc). I can't see anything obviously wrong around the 12v distribution near the battery, and probed a bit with the multimeter ensuring at least going into the harness connections are good. Engine/body ground appears ok too.

From what I have read this may be a fusible link? Could anyone assist me which link would be the problem in this scenario? I can see what I think are 3 going to the starter, but is there another one that goes to ignition/somewhere else? Are they all in that same portion of the harness?

Any insight and help would be very much appreciated!



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Old Aug 1, 2021 | 01:59 PM
  #2  
T.L.'s Avatar
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Car: '83 Firebird (T/A Clone)
Engine: 350 with L-69 components
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Re: Only headlights work, no acc, no ignition. Fusible link?

Fusible link would be My guess...
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Old Aug 5, 2021 | 11:24 PM
  #3  
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Car: '84 Berlinetta
Engine: ZZ4
Transmission: BTOD stage 3
Axle/Gears: 3.23 posi disc
Re: Only headlights work, no acc, no ignition. Fusible link?

Double check the battery terminals and battery state of charge, ensure that the terminals are clean and tight. I don't know exactly where the fusible link is on that model, but you can almost always see where they have gone bad. Look for a purple 10 gauge wire with burn marks, and you have found it. Most often they are co-located with the positive battery terminal or the positive terminal on the starter.
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