ECA - Watchdog Timeout
â–¶ How to fix
1) Reflash ECA with newer SW (if applicable) 2) Renew ECA
What you'll see
ECA short circuits their motor and vehicle needs key off/on to reset the error
System reaction
If vehicle is standing still, neutral position will be engaged. If driving, locked gear. Neutral position will be engaged when braking to stop. After this the vehicle will not be able to drive off.
Diagnostic depth
Detection
Any one of ECA internal watchdog timers is overrun
Possible cause
1) SW bug - supervisor 2) Supervisor heartbeat lost 3) ADC reading heartbeat lost 4) SW bug for CAN 5) ECA motor control timeout