Diagonal 1 and 2
â–¶ How to fix
- Restart the ABS-ECU with Ignition OFF/ON - Replace the ABS-ECU, if the fault is still active (this is the last thing to do !)
What you'll see
No driver-visible symptom recorded.
System reaction
ABS disabled ASR, ESC/RSC disabled DTC disabled Hillhold Function disabled
Diagnostic depth
Detection
mechanical system not responding properly or out of adjustment
Possible cause
Voltage supply 3rd axle + Aux., internal relay '2' does not open (not for ABS Basic system)