ABS Modulator IV-Valve Open Circuit, Interruption Detection (FA left)
- Check wiring and electric connectors of the relevant ABS-valve (interruption ?) - Check relevant ABS-valve (internal interruption ?). - Replace the ABS-ECU module, if the wiring and the relevant ABS-valve is faultless
What you'll see
No driver-visible symptom recorded.
System reaction
ABS function at relevant wheel is switched off ABS function at other wheels is still available ATC brake and engine control is still available HSA is deactivated EBL is not deactivated Drag Torque Control is not deactivated
Diagnostic depth
An interruption of the inlet valve line on the left front ABS Modulator was detected.
- wiring or electric connectors of the relevant ABS-valve are interrupted - relevant ABS-valve has internal interruption - ABS-ECU defective