P0403

Tests 1 - 2:

Tests 3 - 7:

Test 8:

SYMPTOM
P0403 - EGR SOLENOID CIRCUIT

WHEN MONITORED
With the ignition ON, and the engine running and the battery voltage greater than 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
- EGR solenoid assembly
- Wiring harness intermittent problem
- ASD relay output circuit open
- EGR solenoid control circuit open
- EGR solenoid control circuit short to ground
- EGR solenoid control circuit shorted to sensor ground
- PCM