DBW Cruise Control Question
12-31-2010, 07:14 AM
#1
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DBW Cruise Control Question Does the Electronic Speedometer output from the PCM have to be hooked up for the Cruise control to work? If so, is there anyway to "trick" the pcm?
12-31-2010, 10:38 AM
#3
What IS required:
Stop Lamp Supply Voltage - This wire should be hooked to the same wire that feeds you're brake lights 12v+ when you press on the brake pedal. TAC module looks for brake light bulb resistance, if using LED brake lights, it won't work. This is a light blue wire that goes to the TAC module.
You also MUST have the TCC brake switch signal to the PCM. If this signal is not received by the PCM, cruise will not function. TCC Brake Switch Signal is 12v+ when brakes are NOT pressed, and the switch OPENS when you hit the brakes. This signal wire is at PCM connector C1-Blue: Pin #33; Purple wire.
Stop Lamp Supply Voltage - This wire should be hooked to the same wire that feeds you're brake lights 12v+ when you press on the brake pedal. TAC module looks for brake light bulb resistance, if using LED brake lights, it won't work. This is a light blue wire that goes to the TAC module.
You also MUST have the TCC brake switch signal to the PCM. If this signal is not received by the PCM, cruise will not function. TCC Brake Switch Signal is 12v+ when brakes are NOT pressed, and the switch OPENS when you hit the brakes. This signal wire is at PCM connector C1-Blue: Pin #33; Purple wire.
