Chrysler 300M 2002 Service Manual page 2582

Symptom:
P0403 - EGR CONTROL CIRCUIT
When Monitored and Set Condition:
P0403 - EGR CONTROL CIRCUIT
When Monitored: Engine running. Battery voltage greater than 10 volts.
Set Condition: The EGR solenoid control circuit is not in the expected state when
requested to operate by the PCM. One Trip Fault.
INTERMITTENT CONDITION
EGR SOLENOID ASSEMBLY
EGR SOLENOID GROUND CIRCUIT OPEN
EGR SOLENOID CONTROL CIRCUIT SHORTED TO VOLTAGE
EGR SOLENOID CONTROL CIRCUIT SHORT TO GND
EGR SOLENOID CONTROL CIRCUIT SHORTED TO SENSOR GROUND CIRCUIT
EGR SOLENOID CONTROL CIRCUIT OPEN
PCM
TEST
1 Ignition on, engine not running.
With the DRBIII , read DTCs and record the related Freeze Frame data.
Is the Good Trip Counter displayed and equal to zero?
Yes → Go To 2
→ Go To 9
No
2 Turn the ignition off.
Disconnect the EGR Solenoid harness connector.
Turn the ignition on.
Turn all accessories off.
Using a 12 volt Test Light connected to the EGR Solenoid ground circuit, probe the
EGR Solenoid Control circuit.
With the DRB, actuate the EGR solenoid.
Does the 12-volt test light flash on and off?
Yes → Replace the EGR Solenoid Assembly.
→ Go To 3
No
POSSIBLE CAUSES
ACTION
Perform POWERTRAIN VERIFICATION TEST VER - 5.
DRIVEABILITY - NGC
153
APPLICABILITY
All
All