Thread update for future users.
Tried swapping the Red/Black feed to the Black/Red connected to BCM in boot with no avail, which is also what PF Jones suggested over the phone,
performed a brake switch test using VCDS and confirmed that brake switch was working by viewing live data.
Removed...
Hi all, hoping you can help.
I have fitted a PF Jones 13 pin wiring kit to my A4, (no red towing plug in boot, so had to solder into CAN system and brake light signal to fit plug for trailer module) I followed the instructions to a tee and thought I had done a cracking job.
Problem is, my...
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