Gm Wiring Color Code

Tool list and wiring detail. The factory wire colors given are typical of most gm vehicles. Several wiring providers painless ron francis etc provide gm color coded replacement harnesses but with a google search i could not find any who offered documentation of that color code.
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Gm wiring color code. Factory wire colors codes are not universal. Red dc positive conductors. Installation is easier no guess work with wire color codes and a headache saver. Check fuses if your unable to find 12 volts.

This section aids in troubleshooting and determining wire color codes phasing for speaker hook up locating power wires for installing. Pickup gmc s15 1990 2dr pickup wiring information. Gm car radio wiring connector audio. Radio wiring color codes radio wire color codes radio wiring diagram radio wire diagram radio wiring harness radio wire harness stereo wiring color codes stereo wire color codes.

Use green or green wyellow stripes dc grounding conductors. 1993 gmc typhoon 2dr suv wiring information. We discourage cutting the factory wire harness. Fullsize gmc jimmy 1991 2dr suv wiring information.

Swapping yellow wires will cause damage to any aftermarket stereo. Whenever a wire is labeled with two colors the first color listed is the basic color of the wire and the second color listed is the stripe marking of the wire. S series gmc jimmy 1989 2dr suv wiring information. 1992 gmc safari minivan wiring information.

All i found was a few specific references to stereo installations and trailer towing but nothing for a full harness. Brownyellow stripe by or yellow y see note. Black or yellow dc negative conductors. See aftermarket videos above.

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Locate the 12 volt constant wire first. Label it or splice to constant wire on aftermarket stereo first.