Tekonsha Prodigy P3 Only Works with Manual Override on a 2002 Chevrolet Silverado 2500HD

Published 01/31/2019

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Tekonsha Plug-In Wiring Adapter for Electric Brake Controllers - GM

(1197)

$21.40

Question:

I bought it for a 05 gas engine and now have it installed on a 02 diesel but the plug was the same.

asked by: Robert

Expert Reply:

It sounds like there is an issue with the stop light switch connection on the Tekonsha Prodigy P3 Trailer Brake Controller part # 90195 in your 2002 Chevrolet Silverado 2500HD. The most common problem that causes this connection issue is a blown Center High Mounted Stop Lamp (CHMSL) fuse which is in the engine bay fuse block. If you are using a hard wire harness then check your connection to the stop light switch wire attached to the cold side of the brake pedal or the one that only gets power while the brake pedal is depressed.

expert reply by: Conner L

Todd

1/31/2019

I bought it for a 05 gas engine and now have it installed on a 02 diesel but the plug was the same.

Conner L.

1/31/2019

Ahhhhhhhh, the reason your brake controller is not functioning properly is because you have the wrong brake controller wiring harness. The physical shape of the brake controller ports will be the same between a 2002 Chevrolet Silverado and a 2005 Chevrolet Silverado but the pinouts are different. For your 2002 Chevrolet Silverado you will need the Tekonsha Plug-In Wiring Adapter for Electric Brake Controllers part # 3025-P which is for a 1999 - 2002. You have the Tekonsha Plug-In Wiring Adapter for Electric Brake Controllers part # 3015-P which is for a 2003 - 2006.