P0657 VOLKSWAGEN Actuator Supply Voltage A Circuit Open

Possible causes
– Faulty Engine Control Module (ECM)
– ECM harness is open or shorted
– ECM circuit poor electrical connection
– ECM Programming
When is the obd code mean?
The Engine Control Module (ECM) has detected an interruption to the transmission control solenoids.
Symptoms
– Engine Light ON (or Service Engine Soon Warning Light)