Quote:
Originally Posted by bilfman
I would check, adjust and clean the door striker switches. Remember + (hot) runs continuously to them . The striker makes the ground when the door is open. Once cleaned up try screwing them out a turn.
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PDFs of the GM squarebody wiring and service manuals are in my signature.
The dome and courtesy lights have a hot direct to the fuse panel all the time. The door and headlight switch ground the other side of the bulb to the cab.
This is a fair representation of a GM dome light circuit.
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1959 M35A2 LDT465-1D SOLD
1967 Dodge W200 B383, NP420/NP201 SOLD
1969 Dodge Polara 500 B383, A833 SOLD
1972 Ford F250 FE390, NP435/NP205 SOLD
1976 Chevy K20, 6.5L, NV4500/NP208 SOLD
1986 M1008 CUCV SOLD
2000 GMC C2500, TD6.5L, NV4500
2005 Chevy Silverado LS 2500HD 6.0L 4L80E/NP263
2009 Impala SS LS4 V8
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