P0403

Tests 366 - 370:

Tests 371 - 373:

SYMPTOM
P-0403 EGR SOLENOID CIRCUIT

WHEN MONITORED
With the ignition key on and engine running and battery voltage > 10.4 volts.

SET CONDITION
The EGR solenoid control circuit is not in the expected state when requested to operate by the PCM.

POSSIBLE CAUSES
- ASD relay output circuit open
- EGR solenoid defective
- EGR solenoid circuit wiring harness inter defect
- EGR solenoid circuit wiring harness observable defect
- EGR solenoid control circuit open
- EGR solenoid control circuit short to gnd
- PCM defective