Electrical Issue

Mirage1kB to Mechanic Advice@gearhead.townEnglish · 10 months ago

I’m wondering how to use a voltmeter to find a problem in a wiring harness of my car. My passenger headlight turns dim and then turns off after a few seconds. Before that passenger headlight issues arose, my driver side would take multiple flickers to turn on. Also a month ago my car had several accessories running and as I applied the brakes while having the turn signal on, my car did shut off. Seems like there’s a parasitic draw happening somewhere and I am a rookie when it comes to electrical work on vehicles.

I’ve never used a voltmeter besides probing my battery terminals and alternator casing and I’d like to know how to fix my electrical issues in my car before paying a pro to do it. I’m really avoiding to undo any of the wiring harness at it is brittle as can be.

(2001 Lexus IS300)

Thanks in advance

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