P1389

Tests 1 - 3:

Tests 4 - 9:

Test 10:

SYMPTOM
P1389 - 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
- DTC not equal freeze frame DTC
- ASD relay output circuit open
- Fused B(+) circuit open
- Wiring harness intermittent defect
- Wiring harness observable defect
- Auto Shutdown Relay
- Powertrain Control Module