P0382 Intake Air Heater Relay #2 Control Circuit

SYMPTOM
P-0382 INTAKE AIR HEATER RELAY #2 CONTROL CIRCUIT

WHEN MONITORED
First 1 second of ignition on.

SET CONDITION
EDM does not sense intake air heater relay turned on.

POSSIBLE CAUSES
- Battery voltage drop at least 0.5 volt
- DTC not equal to freeze frame DTC
- IAT relay ground circuit open
- IAT heater relay #2 control circuit open
- IAT heater relay #2 control ckt short to ground
- Engine control module defective
- Intake air heater relay #2 defective