Chrysler 300M 2002 Service Manual page 2692

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.
INTERMITTENT CONDITION
ASD RELAY
FUSED B+ CIRCUIT
ASD RELAY OUTPUT CIRCUIT OPEN
ASD RELAY OUTPUT CIRCUIT OPEN
PCM NO START
PCM START
TEST
1 NOTE: Diagnose P0685 - Auto Shutdown Relay Control Circuit first if set
along with this DTC.
With the DRBIII , 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?
Yes → Go To 2
→ Go To 9
No
2 Attempt to start the engine.
Does the engine start.
Yes → Go To 3
→ Go To 5
No
POSSIBLE CAUSES
ACTION
263
DRIVEABILITY - NGC
APPLICABILITY
All
All