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73-87 Chevy _ GMC Trucks => Electrical => Topic started by: johnc10 on August 24, 2021, 05:57:19 PM

Title: Rear Side Markers
Post by: johnc10 on August 24, 2021, 05:57:19 PM

I bought a brand new rear harness for my 1976 C10 and I can’t seem to get the rear side markers to turn on. My old harness had no issues with the side markers and I can’t seem to figure this one out. I am using new bulbs and I even tried it with the old bulbs which were working fine. Any help is appreciated.

Title: Re: Rear Side Markers
Post by: VileZambonie on August 24, 2021, 07:16:57 PM

They rely on body grounds at the rear tail light opening. Are they connected, clean and tight?

Title: Re: Rear Side Markers
Post by: 1980K20 on September 18, 2021, 09:04:09 AM

For the taillight ground, are the eight mounting bolts for the bed the grounding of the bed? Or is there an additional grounding somewhere?

Wondering if there's a different grounding scheme with the new harness.

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