Modulator 3rd Axle Left
- Check wiring and the relating electric connectors of the left Modulator Valve of the intermediate axle ( IV/OV short circuit to UB? IV/OV Shorted coil? ). Replace as required. - Replace the ABS-ECU module, if the wiring of the left Modulator Valve of the intermediate axle is faultless (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
voltage above normal or shorted high
ABS Modulator IV-Valve Short Circuit to UB Detection (AA left) ABS Modulator Valve Power Driver Break Down Detection (AA left) ABS Modulator OV-Valve Short Circuit to UB Detection (AA left) ABS Modulator IV-Valve Short Circuited Coil Detection (AA left) ABS Modulator OV-Valve Short Circuited Coil Detection (AA left)