Modulator Front Left
- Check wiring and the relating electric connectors of the left front Modulator Valve ( IV/OV short circuit to UB? IV/OV Shorted coil? ). Replace as required. - Replace the ABS-ECU module, if the wiring of the left front Modulator Valve is faultless (this is the last thing to do !)
What you'll see
No driver-visible symptom recorded.
System reaction
ABS disabled DTC disabled ASR, ESC/RSC disabled Hillhold Function disabled
Diagnostic depth
voltage above normal or shorted high
ABS Modulator IV-Valve Short Circuit to UB Detection (FA left) ABS Modulator Valve Power Driver Break Down Detection (FA left) ABS Modulator OV-Valve Short Circuit to UB Detection (FA left) ABS Modulator IV-Valve Short Circuited Coil Detection (FA left) ABS Modulator OV-Valve Short Circuited Coil Detection (FA left)