ESP tyre light parking aid come on when car hit boost

Jul 29, 2025
2
0
Darby
Hi my cars ESP light tyre light parking aid come on when car hit boost when I scan it i get code brakes : U112100 databus missing message (Intermittent) and code on engine: U112300 databus error value received (Intermittent) not sure if it abs related need pointing in the right direction if anyone has any information did live data on abs sensor they seem to be working but on all 4 it says error on air gap not sure if thats normal
 

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mty12345

Active Member
Jun 17, 2011
4,123
683
bristol
Weird one tbh. Some sort of loose connection or corrosion on the connector to the ABS module would be my best guess. Maybe under hard acceleration it's moving the connector slightly. I'd unplug it and look for any green crusty stuff in the connector, if that's good try moving the wiring around that area and see if it sets the code.

The other thing I'd say is that it may be worth scanning with VCDS or similar, as OBD11 etc are known for sometimes giving false codes.
 
Jul 29, 2025
2
0
Darby
Think thats what im gonna do use a multimeter gonna though every wheel speed sensor and abs model hopefully my friend come with vcds today is a strange one only done it when you hard accelerate
 
Lecatona HPFP (High-pressure Fuel Pump Upgrades)