2001 Z28 M6 to A4 Conversion - Wiring Questions
TECH Junkie
Joined: May 2012
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From: Poplarville, MS
Brown wire should go to Cruise Control Module. So, all you will need is switched voltage from PPL wire on brake light switch to Cruise Control Module via BRN wire for module to work. With brake pedal up you will have voltage to Cruise Control Module, depress brake pedal and switch opens taking away voltage to module, turning off the module.
Teching In
Joined: Feb 2023
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From: Ontario canada
Brown wire should go to Cruise Control Module. So, all you will need is switched voltage from PPL wire on brake light switch to Cruise Control Module via BRN wire for module to work. With brake pedal up you will have voltage to Cruise Control Module, depress brake pedal and switch opens taking away voltage to module, turning off the module.
*Update*
I jumped the clutch pink to the pink line in brake switch. It gave power to the purple wire and when I pressed the brake it had no power which is correct!. I volt metered the purple line in c220 and it has power now. Do you know where that purple line goes into the ecu?
Last edited by Mr_crazy_menace; Feb 19, 2023 at 12:50 PM.
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Help please Back-up light wires are in connector C220 behind the right front kick panel. Run the brown and light green wires from the connector behind the kick panel to the Park/ Neutral Switch. The brown wire goes to the C terminal and the light green wire goes to the D terminal on the Park/ Neutral Switch.
Dark Green and Purple/White wire from clutch pedal switch that is closed when the clutch pedal is down should be ran to Park/ Neutral Switch terminals E and F. I don’t think it matters which one goes to which terminal.
For the TCC and CC to work properly the Pink and Purple wires from the clutch pedal switch that is closed when the pedal is up should be run to and A4 bake light switch that opens when the brake pedal is down. These Pink and Purple wires also run to the C220 connector behind the right front kick panel.
Dark Green and Purple/White wire from clutch pedal switch that is closed when the clutch pedal is down should be ran to Park/ Neutral Switch terminals E and F. I don’t think it matters which one goes to which terminal.
For the TCC and CC to work properly the Pink and Purple wires from the clutch pedal switch that is closed when the pedal is up should be run to and A4 bake light switch that opens when the brake pedal is down. These Pink and Purple wires also run to the C220 connector behind the right front kick panel.
I am having no luck with this wiring for my a4 to m6 swap. I’ve followed directions on multiple threads nothing is working starter will not engage with key turned. My c220 connector I’ve noticed does not have a c or d wire going to the ecu (pink or purple) is this an issue?
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