Voltage supply clamp 30A, open circuit
â–¶ How to fix
- Check wiring of external voltage supply (first circuit) - Replace ABS ECU
What you'll see
No driver-visible symptom recorded.
System reaction
ABS function at all wheels is switched off ATC brake control is switched off ATC engine control is still available HSA is deactivated EBL is deactivated Drag Torque Control is not deactivated
Diagnostic depth
Detection
An interruption of the supply line for axles 1, 2 and Dif rear axle (clamp 30A) was detected. A low voltage (open circuit) was measured The open-circuit voltage level is 3V.
Possible cause
- wiring of external voltage supply faulty (first circuit) - ABS ECU defective