Symptom:
P0688-ASD RELAY SENSE CIRCUIT LOW
When Monitored and Set Condition:
P0688-ASD RELAY SENSE CIRCUIT LOW
When Monitored: With ignition key on. Battery voltage greater than 10 volts.
Set Condition: No voltage sensed at the PCM when the ASD relay is energized. One Trip
Fault.
POSSIBLE CAUSES
VERIFY ASD DTC
ASD RELAY
(A14) FUSED B+ CIRCUIT
(A142) ASD RELAY OUTPUT CIRCUIT OPEN
(A142) ASD RELAY OUTPUT CIRCUIT OPEN
PCM NO START
PCM START
TEST ACTION APPLICABILITY
1 NOTE: Diagnose P0685 - Auto Shutdown Relay Control Circuit first if set
along with this DTC.
With the DRBIIIt, erase the DTC.
Attempt to start the engine. If the engine will not start, crank the engine for at least
15 seconds. It may be necessary to repeat several times.
Does the DTC reset?
All
Yes → Go To 2
No → Refer to the INTERMITTENT CONDITION symptom in the
Driveability category.
Perform POWERTRAIN VERIFICATION TEST VER-5-NGC.
2 Attempt to start the engine.
Does the engine start.
All
Yes → Go To 3
No → Go To 5
240
DRIVEABILITY - NGC
To Next Page
Loading...
