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1990 Electrical problems

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Old Jul 1, 2024 | 10:21 AM
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Default 1990 Electrical problems

Over the last 4-5 days I've been having some electrical demons pop up in my car, I have a 1990 base model

The first symptom was the INFL REST light coming on, I've done some research and found quite a few threads and discussions regarding issues pertaining to the grounding of the sensors etc.

The second symptom was my ABS kicking in on dry asphalt going approx. 35km/h approaching a red light so I wasn't braking hard, or really braking at all. This only happened once

The third symptom was the car pulling too much power when toggling certain electrical. For example if I were to be driving at approx. 60km/h and hit my window switches the battery gauge would jump way down and the dash lights go off. It's not just the windows either, after a bit of driving I noticed that using my brakes would cause similar power loss. I got curious and pressed my brakes quickly and after about 4 quick presses the car shut off while idling.

I plan on checking my alternator, battery, and the restraint crash sensors but other than that the more I try and figure this stuff out the more I get confused LOL
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Old Jul 1, 2024 | 11:47 AM
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Battery and alternator would be great places to start, as well as the connections to each...
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Old Jul 1, 2024 | 06:17 PM
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Something tells me to have the battery load tested
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Old Jul 2, 2024 | 09:52 AM
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You've got ground issues. Get the fsm and start tracing out and cleaning the grounds. More than likely those systems have a shared ground.
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