Chrysler 300M 2002 Service Manual page 2586

P0404 - EGR POSITION SENSOR PERFORMANCE —
TEST
3 Turn the ignition off.
Disconnect the EGR Solenoid harness connector.
Disconnect the PCM harness connector.
CAUTION: DO NOT PROBE THE PCM HARNESS CONNECTORS. PROBING
THE PCM HARNESS CONNECTORS WILL DAMAGE THE PCM TERMI-
NALS RESULTING IN POOR TERMINAL TO PIN CONNECTION. INSTALL
MILLER SPECIAL TOOL #8815 TO PERFORM DIAGNOSIS.
Measure the resistance of the 5 volt supply circuit from the EGR Solenoid harness
connector to the appropriate terminal of special tool #8815.
Is the resistance below 5.0 ohms?
Yes → Repair the high resistance in the 5 Volt Supply circuit.
→ Go To 4
No
4 Turn the ignition off.
Disconnect the EGR Solenoid harness connector.
Disconnect the PCM harness connector.
Measure the resistance of the EGR Sensor Signal circuit in the EGR Solenoid
harness connector to ground.
Is the resistance below 5.0 ohms?
Yes → Repair the short to ground in the EGR Sensor Signal circuit.
→ Replace the EGR Assembly.
No
5 Turn the ignition on.
With the DRBIII , actuate the EGR Solenoid.
Allow the EGR Solenoid to actuate for least 15 seconds.
Feel the EGR solenoid for operation.
Stop actuation.
Does EGR Solenoid operate during actuation test and than turn off when actuation
test was stop?
Yes → Go To 11
→ Refer to the Driveability category and perform P0403 - EGR
No
6 Turn the ignition off.
Disconnect the EGR Solenoid harness connector.
Turn the ignition on.
Measure the voltage of the EGR Sensor Signal circuit at the EGR Solenoid harness
connector.
Is the voltage above 4.30 volts?
Yes → Go To 7
→ Go To 8
No
ACTION
Perform POWERTRAIN VERIFICATION TEST VER - 5.
Perform POWERTRAIN VERIFICATION TEST VER - 5.
Perform POWERTRAIN VERIFICATION TEST VER - 5.
Solenoid Circuit.
Perform POWERTRAIN VERIFICATION TEST VER - 5.
DRIVEABILITY - NGC
157
Continued
APPLICABILITY
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