CAN signal ExternalMotorLatch does not match the ECU's MPU Enable I/O output
Check wiring - On ECU (E112) - On MPU (M53) Check CAN-signal RTDB_MPU_ENABLE_FEEDBACK_E - CID 0xF443 - using SDP3
What you'll see
No driver-visible symptom recorded.
System reaction
Red Steer tag axle fault warn EST in released mode
Diagnostic depth
The CAN signal ExternalMotorLatch (MPU Enable) does not have a value that matches the actual ECU MPU Enable digital output pin (E112::A27).
Possible causes are: Defect wiring - open cicruit on ground (pin A25) - open circuit on out signal (pin A27) Defect connectors - On ECU (E112) pin A25 (GND) or A27 - On MPU (M53) pin C6 or C5 (GND) Error in CAN communication - RTDB_MPU_ENABLE_FEEDBACK_E manipulated INFO: Pinne EST A27 och A25 (GND) till MPU pinne C6 och C5. Komponent M53 (Motor, Pump Unit)