ABS 5.7

Fault code 4276

Valves voltage supply
The voltage supply of the valves is evaluated and displays implausible values at several valves

Diagnostic conditions
- Ignition on

Possible cause of fault
- Fuse E9 faulty
- Short circuit or open circuit in the B+/ground supply to the control unit
- Hydraulic power unit faulty

Affected pins
Pin 6

Diagnosis/troubleshooting