MPU electric motor inactive without reason
â–¶ How to fix
• Check electric motor (M53) in the MPU for hardware faults
What you'll see
No driver-visible symptom recorded.
System reaction
Red Steer tag axle fault warn ESTA in released mode
Diagnostic depth
Detection
MPU do not respond to speed request, but no explicit error reason is given (this scenario should never occur).
Possible cause
MPU hardware failure