AudiForYou's 2.7T

Our 2001 Allroad has about 60k miles on it.
The other day the air suspension light came on and the suspension is not inop. It is stuck at the lowest setting, and the rear seems to be a bit higher than the front. The adjustment buttons on the dash are not working.

Scanning the Level Ctrl module revealed the following codes:

00776 - Level Control System Sensor: Left Front (G78) 57-10 - Electric Circuit Failure - Intermittent
01771 - Control Module for Headlight Range (J431) 79-10 - Please Check Fault Codes - Intermittent
01780 - Sensor for Vehicle Level 04-10 - Mechanical Malfunction - Intermittent
65535 - No Errors OR Control Module Malfunction (ambiguous: sorry!) 00-00 - -

I tried resetting these codes, and they all got cleared except the last one (65535).

I had a similar code on an airbag control module, and I ended up needing a whole new control module.

Help me pinpoint the problem here, I'm sure a lot of people know quite a bit about suspension issues on Allroads.

Thanks!

paulroad

Pushing both buttons together for a few seconds.
This sometimes causes a reset.

If not... its off to the dealer. Hopefully you are still in warranty.

AudiForYou's 2.7T

Will try. Warranty is long gone. If it wasn't, I would never bother hooking up the VAG-COM

Link20vt

Try to run the self leveling output test. This might give you some insight.

2FST4U

what is the "self leveling output test?" Could this be a result of the 402 mod??

AudiForYou's 2.7T

Yes, what is that test and how do I run it please?

AudiForYou's 2.7T

I fixed it. It needed a new control module. $500.