Electrical connector for dash wiring harness

145,000 MILES • 5.3L • V8 • 4WD • AUTOMATIC
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JESSESLVN1994
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  • 18 POSTS
Replacing dash wiring harness new one doesn't have this plug that comes out the firewall rests on drivers side fender.
Oct 29, 2020 at 11:19 AM
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JESSESLVN1994
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  • 18 POSTS
Need to know what this goes to.
Oct 29, 2020 at 11:22 AM
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STEVE W.
  • ✓Experienced Mechanic
  • 15,378 POSTS
That appears to be C102 used with options NYS or JL4. Its for the instrument panel to chassis harness. This is the pinout for it. I would be real wary of a harness that doesn't match. GM has a bad habit of using similar harnesses that are pinned different depending on the options. Plug them in and suddenly your wiper switch honks the horn or the horn switch turns on the brake lights.
Oct 31, 2020 at 9:01 AM
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