Quote:
Originally Posted by 71BUCKET
Let me run this by you then. Maybe I am doing the brake switch wrong too
The stalk is easy. Power in. Three wires to TAC
Brake switch:
12+ in
12+ out when brake applied to lights
12+ in
0 out to TAC when brake applied
I know on LS tech you used a micro relay to create load with LEDs. I have leds
Are you wiring it to the brake light side or the TAC side? It was a little hard in the pic on the site to see what pins you wired too. But I think I got the relay right, but now questioning what/how it should be wired to
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I think you have your brake inputs backwards. You need 12v to the TAC with the brakes applied, and you need 12v to the PCM at all times, but NOT when the brakes are applied. I wired the relay directly to the cold side of the brake switch, using just the coil side of the relay, terminal 85 and the other side 86, going to ground. You should hear the relay "click" when the brakes are applied.
Quote:
Originally Posted by 71BUCKET
On an 07 Silverado with tech 2 in hand it shows:
Stoplamp brake pedal switch: released
Cruise release brake pedal: released
On mine it's both showing active.
Aside from that I can show that my cruise stalk is functional and cruise is in my ecu.
So it a brake switch/wiring issue.
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The "released" status on your TechII, was that showing with the brakes applied? It shoud be the opposite if so, and should match the brake pedal, so when you apply the brakes it should say "applied" and when you release the pedal it should say "released".