P1404

Test 1 - Test 2:

Test 3 - Test 5:

SYMPTOM
P1404-EGR POSITION SENSOR RATIONALITY CLOSED

WHEN MONITORED
Engine running.

SET CONDITION
The EGR flow or valve movement is not what is expected. Two Trip Fault

POSSIBLE CAUSES
- Good trip equal to zero
- EGR solenoid assembly
- EGR position sensor signal circuit shorted to ground
- EGR solenoid control circuit short to ground
- EGR position internal failure
- PCM