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