Markc80Audi Posted September 5, 2023 Share Posted September 5, 2023 Hello everyone, I have a puzzling issue with my 2010 Audi A3 1.6 auto sport 8P. When I turn the ignition to the "on" position, most accessory systems like HVAC and lighting work fine. However, all four electric windows don't work, and the instrument cluster doesn't respond. I can only get a response from the cluster by pressing and holding the left button, which shows the time, date, and mileage, but no other info. At first, I thought the instrument cluster was faulty, so I sent it to ECU testing in Derbyshire and paid £180 for a check and rebuild, but the problem persists. The cluster remains unresponsive (no dashboard lights, etc.). When I try to start the car's engine, it briefly starts and then stops—seems like the immobilizer is preventing further operation. Another issue is that I can't communicate with most modules using OBDeleven VAG pro. An autoscan shows issues with 2 modules: Car: Audi A3 Year: 2010 Body type: Sportback Engine: BSE Engine Control Unit (01): Active faults: 6 U0164 - Lost Communication With HVAC Control Module U0146 - Lost Communication With Serial Data Gateway Module "A" U0155 - Lost Communication With Instrument Panel Cluster (IPC) Control Module U0447 - Invalid Data Received From Serial Data Gateway Module "A" P0513 - Incorrect Immobilizer Key P1652 - Read DTC memory of transmission CM Transmission Control Unit (02): Active faults: 8 P1867 - Databus drivetrain missing message of steering columns electron. P1880 - Data bus missing message from Diagnostic Interface CM P1862 - Databus drivetrain missing message from instrument cluster P1880 - Data bus missing message from Diagnostic Interface CM P1850 - Databus drivetrain Missing Message from Engine CM U0235 - Lost Communication With Cruise Control Front Distance Range Sensor P1852 - Databus drivetrain Implausible Message from Engine CM U0103 - Lost Communication with Gear Shift Module To troubleshoot, I'll try replacing the gateway with a second-hand unit with the same part and hardware numbers. If that doesn't work, I might have to send the engine ECU for a pricy check/rebuild at £240. I've checked wires, fuses, and relays, and everything seems fine. I'm reaching out to see if anyone has insights or suggestions. I'm especially interested in testing the CAN-bus network more comprehensively. Thanks for your help. Quote Link to comment Share on other sites More sharing options...
Steve Q Posted September 5, 2023 Share Posted September 5, 2023 Take a look at this thread. A fellow members had a similar issue 5 days ago. https://www.audiownersclub.com/forums/topic/24553-bench-test-dash-cluster/ Quote Link to comment Share on other sites More sharing options...
Markc80Audi Posted September 5, 2023 Author Share Posted September 5, 2023 thank You for your advice !!! Quote Link to comment Share on other sites More sharing options...
Steve Q Posted September 6, 2023 Share Posted September 6, 2023 No probs. Ide definitely advise you get the cluster bench tested orva diagnostic check to see if any fault codes flag up Quote Link to comment Share on other sites More sharing options...
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