MarkJ
Registered User
Help please! This has been an expensive year long saga. Thanks in advance for any assistance.
Background:
2008 A4 B7 Avant
I purchased and properly installed the dedicated wiring harness (Audi A4 Avant 7 Pin Electrics Dedicated Oct 04-08 19010506RC) for my removable towbar about a year ago. The code was entered into the computer and everything should work fine...but, it doesn't.
Issues:
I would prefer to leverage the car's built-in towing capabilities (trailer-connected sensing, Trailer-Stabilization-Program, etc.) which is why I did so much research and had everything flown over from the EU to begin with.
Here are my questions:
Mark
Background:
2008 A4 B7 Avant
I purchased and properly installed the dedicated wiring harness (Audi A4 Avant 7 Pin Electrics Dedicated Oct 04-08 19010506RC) for my removable towbar about a year ago. The code was entered into the computer and everything should work fine...but, it doesn't.
Issues:
- The brake lights on the trailer do not come on when the brakes are pressed.
- The turn indicator lights on the trailer are sporadic, blinking once every 2-3 seconds or twice and then nothing for 3-4 seconds.
- The running lights on the trailer all work perfectly. However, there is a warning light about a trailer light being out on the driver's display when the trailer is attached.
I would prefer to leverage the car's built-in towing capabilities (trailer-connected sensing, Trailer-Stabilization-Program, etc.) which is why I did so much research and had everything flown over from the EU to begin with.
Here are my questions:
- Has anyone run into these issues before and found a solution just using the dedicated wiring harness with N. American A4 B7 models?
- As the issues are really just 1) turn indicators to work properly on the trailer and, 2) the brake lights to respond on the trailer, could I just run leads directly from the car's break lights & turn indicators directly to the correct pins on the trailer plug (leaving everything else as is, no bypass relay installed)? Is there danger of short circuit or overload of power?
- If I have to use the bypass relay, can I only connect power/earth/R&L turn indicators/break lights AND keep the dedicated wiring harness in place so the car goes into tow mode when the trailer is attached?
Mark
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