73-87 Chevy _ GMC Trucks > Electrical

No Headlights, Taillights, Horn, or Gauges

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4wdmemes:
Hello all, today I started up my 1984 K10 LWB and noticed that I have no headlights, taillights, sidemarkers, interior lights, or horn. Although when I press the brake, the brake lights work, so no burnt bulb. And the turn lamps work when I use the turn signals. Any help is appreciated, 1984 diagrams would especially be helpful. ;D

bd:
The 1984 Wiring Manual is available along with all the other manuals in our Technical Forum.

Number 1157 (and the subsequent 2057) bulbs have dual filaments.  The brake/turn signal lamps and running lamps employ separate filaments within the bulbs.  So bad bulbs remain a possibility until physically verified.

Using an incandescent test light, is the alternator #2 regulator terminal constant 12 volts?  Check the fusible links and connections to the starter solenoid 3/8" B+ stud.

Susipfm:
I am having the same issue, I found a cab to frame ground strap broken, ordering a new one to see if that is the problem, I'll keep you posted

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