P0685

Test 1 - Test 3:

Test 4 - Test 6:

SYMPTOM
P0685-ASD RELAY CONTROL CIRCUIT

WHEN MONITORED
With ignition on. Battery voltage above 10 volts.

SET CONDITION
An open or shorted condition is detected in the ASD relay control circuit for more than 2.7 seconds. ASD Relay state does not equal the desired state. P0688 will set along with P0685.

POSSIBLE CAUSES
- ASD relay operation
- (A209) Fused B+ circuits
- ASD relay
- (K342) ASD relay control circuit open
- (K342) ASD relay control circuit shorted to ground
- PCM