ECA unit
Disconnect the connectors connected to ECA and check if the pins are worn.If the pins are worn, renew the cable harness by the ECA and gearbox.If the fault persists, check the CAN cable harness between the ECA and OPC control unit.Check the supply voltage to the ECA.Renew the ECA if the fault persists.
What you'll see
No driver-visible symptom recorded.
System reaction
The vehicle cannot drive off when the neutral position is engaged when braking.
Diagnostic depth
Timeout on CAN message.This fault code is generated if any of the CAN messages from the ECA is missing more than 5 times.
If a message expected from the ECA unit disappears or is missing, this fault code is generated.This could be due to an open circuit in the CAN cable harness or open circuit in the supply voltage to the ECA.