P0688
Powertrain Codes
P0688 - MITSUBISHI - Auto Shutdown Relay Control Circuit Low
Symptoms
- Engine Light ON (or Service Engine Soon Warning Light)
Possible Causes
- ASD relay circuit is open or shorted - Failed Auto Shutdown relay - Failed ECM
Tech Notes
Check all the ECM fuses, if the fuses are OK try replacing the ASD relay.
Description
Short or open in Auto Shutdown (ASD) relay circuit