Quote:
Originally Posted by ray_mcavoy
I believe these plug into the "convenience center" as opposed to the fuse box. The convenience center is a secondary electrical panel that GM added to these trucks sometime around 1985 and if I remember correctly it's located somewhere above the gas pedal (the horn relay and hazard flasher also plug into the convenience center).
According to the wiring diagrams, the 7 pins are connected to:
- switched power (ignition)
- "fasten seatbelt" light on dash
- ground
- driver side seatbelt retractor switch
- key present in ignition switch
- constant power
- dash illumination circuit
So in addition to being a headlight warning buzzer, it looks like they also serve as a seatbelt and key-in-ignition buzzer.
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Thanks. I'll search for it tomorrow.