ECA unit
â–¶ How to fix
Check the CAN connection between the OPC control unit and ECA control unit. Also check connectors and cable harnesses.Renew the OPC if the fault persists.Renew the ECA if the fault persists after renewing the OPC.
What you'll see
No driver-visible symptom recorded.
System reaction
The vehicle cannot drive off when the neutral position is engaged when braking to a stop.
Diagnostic depth
Detection
The ECA does not receive CAN messages from OPC.
Possible cause
Incorrect communication from OPC to ECA.