Instrument cluster issues

Lets put this back into your original thread.


Lets keep this simple.
Engine off, key off, does the ammeter move when the dome lights or any other lights turn on?
If so, does it move toward discharge?

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The fuse for the instrument lighting is supplied power through the headlight switch. That's either a 2 or 3 amp fuse.
There is no fuse for the gages.
There is no fuse for the turn signal indicators.

Power for the turn signals and turn signal indicators comes through the flasher module from a welded junction in the accessory circuit.
Power for the instrument gages comes from the same welded junction in the accessory circuit.
Accessory is off with the key off, and on with key in run. All switched power other than the ignition and alternator field is an 'accessory'.

Lighting is not switched. It's hot at all times.

Schematically looks like this.
View attachment 1715594955

View attachment 1715594959

Connection details on your '68 may be slightly different but it works the same way.[/QUOTE
Amp meter does not move at all fuel gauge not working directionals work but no indicator lights at the fuse box the one that says instrument has no power to it