No power to dash or ignition.

General technical discussion and troubleshooting
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Topic author
PsyRally
I am merely driving my van
I am merely driving my van
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Joined: Tue Jun 27, 2023 4:27 am

No power to dash or ignition.

Post by PsyRally »

Hello all new to the forum. Picked up a1981 GMC RallySTX with a camper high top. Gutted the mouldy shag to prepare for a camper re do! Went out to start the Van yesterday and heard a pop from under the dash but it didn’t sound like it came from the fuse panel. Now I have nothing when I turn the key. No dash lights no warning buzzers no ignition. Fuses all look ok. Is there a main fuse up under the dash by the dash ignition? Help.

Psy
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MountainManJoe
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Re: No power to dash or ignition.

Post by MountainManJoe »

Welcome to the forum Psy
Main fuses should be in the under-hood fuse block.
I would check for voltage on the under-dash fuses. If there's nothing there you probably blew the ignition switch in the column.

Topic author
PsyRally
I am merely driving my van
I am merely driving my van
Posts: 3
Joined: Tue Jun 27, 2023 4:27 am

Re: No power to dash or ignition.

Post by PsyRally »

No power to the fuses under the dash. I don’t see any fuses under the hood at all. I think my Van is old enough to use a disable link to the ignition. I’m just having a hard time finding it. Going to have to disassemble the dash to get a better look I guess.

Psy
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MountainManJoe
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Re: No power to dash or ignition.

Post by MountainManJoe »

I don't have diagrams for your model unfortunately. Since you plan to do a lot of work and own this thing long term, I strongly recommend you pick up one of these at the part store...

Image

The public library should also have some print and digital resources.

Topic author
PsyRally
I am merely driving my van
I am merely driving my van
Posts: 3
Joined: Tue Jun 27, 2023 4:27 am

Re: No power to dash or ignition.

Post by PsyRally »

IMG_7388.jpeg
My thoughts exactly. I have the relevant Haynes manual however the wiring diagrams are not easy to decipher and I come from the motorcycle mechanics world and have much experience with wiring diagrams. But this Van is another beast.

Psy
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MountainManJoe
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Re: No power to dash or ignition.

Post by MountainManJoe »

well if you post the ignition circuit maybe I can help you decipher it
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