Exhaust Gas Recirculation Solenoid Malfunction

Code Number
General scan tool P0403
Scan tool -

Description
Exhaust gas recirculation solenoid malfunction

Probable Cause
- EGR solenoid failed.
- Open or shorted EGR solenoid circuit, or loose connector.
- Engine control module failed.

Background
- The engine control module checks current flows in the EGR solenoid drive circuit' when the solenoid is on and off.

Set Conditions
- The surge voltage is not detected when the solenoid turns on to off.





Diagnosis