Gauges and dash lights won’t work

Pappy Parker · Dec 3, 2019

Hello. My 1980 k10 fuel gauge and dash lights don’t work when I turn on my parking and head lights. I’ve replaced the headlight switch and the dimmer switch, the only difference is now the high beam indicator is backwards.

Snoots · Dec 3, 2019

Sounds like a bad ground under the dash near the Parking Brake pedal.

bucket · Dec 3, 2019

Or a bad trace in the cluster's printed circuit.

85 CA SIERRA 1500 · Apr 7, 2020

Snoots said:
Sounds like a bad ground under the dash near the Parking Brake pedal.

Hi Snoots,,,I know this is an old thread, but, I am having similar issues and another member here has told me the same thing regarding bad ground,,,,,,I have looked under the dash and can't find this mystery grounding point by the parking brake pedal,,,,,what am I missing???????

Snoots · Apr 7, 2020

Hmmm. Good question. They didn't really change much until '92.

It may be higher on the kick panel. Mine was kinda hidden behind the side of the Parking Brake.

Backfoot100 · Apr 8, 2020

Check higher up toward the windshield. Mine was easily accessible when I removed the gauge panel for other maintenance.

Snoots · Apr 8, 2020

85 CA SIERRA 1500 said:
Hi Snoots,,,I know this is an old thread, but, I am having similar issues and another member here has told me the same thing regarding bad ground,,,,,,I have looked under the dash and can't find this mystery grounding point by the parking brake pedal,,,,,what am I missing???????

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85 CA SIERRA 1500 · Apr 9, 2020

Thank you Sir, this helps , at least now I know what to look for

Gauges and dash lights won’t work

Pappy Parker

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bucket

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