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| | | | Joined: Dec 2000 Posts: 506 Shop Shark | | Shop Shark Joined: Dec 2000 Posts: 506 | All of a sudden I go to use my head lites and they are not working, nor the parking lites. Vehicle is a 52 PU, new 12 volt system, 100 amp one wire alt, everything else is fine. headlite switch is a chevy duty 12 volt PN 53-156. Is it the switch, I'm about to buy another switch.
52pu
"Drugs are money, money is power, power is security." - Kent Heiner
Nedrow population 2212
Carbon footprint family of 2/11 tonnes of CO2/yr
| | | | | Joined: Jan 2013 Posts: 603 Shop Shark | | Shop Shark Joined: Jan 2013 Posts: 603 | Sometimes a bad dimmer switch will cause this. I would bench test the headlamp switch, before buying one. Apply power to it and use a test light.
Last edited by Old GMC Gold; 07/30/2014 9:09 PM.
57 GMC LCF 370 55 John Deere 40-W 59 John Deere 430-W 2000 GMC 4x4 56 John Deere 420-W Pix on Photobucket | | | | | Joined: Feb 2002 Posts: 12,029 Cruising in the Passing Lane | | Cruising in the Passing Lane Joined: Feb 2002 Posts: 12,029 | dimmer won't affect park lites, and the switch doesn't care if you use 6 or 12V on it, but the repro switches aren't the best quality nowadays so I'd suspect it, but using a meter to find out where the voltage disappears would be better than just throwing money at the problem, could just be a loose connection at the switch
Bill | | | | | Joined: Aug 2010 Posts: 775 'Bolter | | 'Bolter Joined: Aug 2010 Posts: 775 | You can jumper across the switch. Just take a wire from the hot battery side to the out to lamp side. No light something else is wrong. | | | | | Joined: Dec 2000 Posts: 506 Shop Shark | | Shop Shark Joined: Dec 2000 Posts: 506 | Figgured it out. Pulled the switch down, on the back of the switch was a relay, the bottom nut had worked loose not allowing good contact. Tightened everything up, works now. Thanks for everyone's input.
52pu.
"Drugs are money, money is power, power is security." - Kent Heiner
Nedrow population 2212
Carbon footprint family of 2/11 tonnes of CO2/yr
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