P1389 No ASD Relay Output Voltage At PCM

SYMPTOM
P-1389 NO ASD RELAY OUTPUT VOLTAGE AT PCM

WHEN MONITORED
With the Ignition Key On, Battery voltage greater than 10.4 volts and RPM greater than 40.

SET CONDITION
No voltage sensed at the Powertrain Control Module when the Auto Shutdown Relay is energized.

POSSIBLE CAUSES
- Fused B(+) circuit open
- Auto shutdown relay defective
- ASD relay output circuit open (engine started)
- ASD relay output ckt open (engine did not start)
- ASD relay output ckt wiring harness observable def
- ASD rly output ckt wiring harness intermittent def
- PCM def (engine did not start)
- PCM def (engine started)