Modulator 3rd Axle Left
â–¶ How to fix
- Check wiring and the relating electric connectors of the left Modulator Valve of the intermediate axle ( IV/OV interruption? ) - Check left Modulator Valve of the intermediate axle (internal interruption?). 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 wheel disabled DTC disabled ASR Diff. Brake disabled ESC/RSC disabled Hillhold Function disabled
Diagnostic depth
Detection
current below normal or open circuit
Possible cause
ABS Modulator IV-Valve Open Circuit, Interruption Detection (AA left) ABS Modulator OV-Valve Open Circuit, Interruption Detection (AA left)