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Kevin1957 Samba Member
Joined: March 15, 2009 Posts: 331
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Posted: Wed Jun 04, 2025 5:28 am Post subject: New wiring harness installed; no power |
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I recently finished installing a new wiring harness in my '72. Hooked up the battery yesterday, but no power except for the door buzzer. Any suggestions for troubleshooting would be appreciated. |
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dingerjunkie Samba Member
Joined: July 25, 2024 Posts: 75 Location: Liberty Hill, TX
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Posted: Wed Jun 04, 2025 8:45 am Post subject: Re: New wiring harness installed; no power |
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Get a voltage tester or "power probe" and start checking both sides of fuse connections at the box, from under the front hood.
Do you have switched power at every "in-point" you'd expect, by terminal?
Do you have un-switched power everywhere you'd expect, by terminal?
If the answer to both of those is "yes" at each fuse point, then you can start tracing and use the probe at each switch-point (do I have power to this switch when I expect to or not?). |
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runamoc  Samba Member

Joined: June 19, 2006 Posts: 6037 Location: 37.5N 77.1W
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Posted: Wed Jun 04, 2025 9:03 am Post subject: Re: New wiring harness installed; no power |
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Any suggestions for troubleshooting would be appreciated |
Download the wiring diagram from the SAMBA 'Technical' section and use a VoltOhmMeter and start checking voltages from the battery forward.  _________________ Daily driver: '69 Baja owned 45 yrs - Plan B: '72 Ghia
Yard Art: 2 Sandrails
Outback: '69 Ghia - '68,'69,'70,'72 Beetle - '84 Scirocco, GTI - Pair of '02 Golfs- '80 Rabbit Diesel
VW Wiring = It's just wires |
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Kevin1957 Samba Member
Joined: March 15, 2009 Posts: 331
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Posted: Wed Jun 04, 2025 11:45 am Post subject: Re: New wiring harness installed; no power |
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Thanks to both of you. |
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