P0403

Tests 1 - 2:

Tests 3 - 7:

Test 8:

SYMPTOM
P0403 - EGR SOLENOID CIRCUIT

WHEN MONITORED
With the ignition key on and engine running and battery voltage > 10 volts.

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

POSSIBLE CAUSES
- EGR solenoid defective
- Fused ignition switch output circuit open
- EGR solenoid circuit wiring harness intermittent defect
- EGR solenoid circuit wiring harness observable defect
- EGR solenoid control circuit open
- EGR solenoid control circuit short to ground
- PCM defective (EGR solenoid circuit)