Chrysler 300M 2002 Service Manual page 2585

DRIVEABILITY - NGC
Symptom:
P0404 - EGR POSITION SENSOR PERFORMANCE
When Monitored and Set Condition:
P0404 - EGR POSITION SENSOR PERFORMANCE
When Monitored:
Set Condition: The EGR flow or valve movement is not what is expected.
HIGH RESISTANCE IN 5 VOLT SUPPLY
EGR SENSOR SIGNAL CIRCUIT OPEN
EGR ASSEMBLY
EGR SOLENOID CONTROL CKT
INTERMITTENT CONDITION
EGR SENSOR SIGNAL CIRCUIT OPEN
EGR SENSOR SIGNAL CIRCUIT SHORTED TO GROUND
SENSOR GROUND CIRCUIT OPEN
EGR ASSEMBLY (GROUND)
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 11
No
2 NOTE: Diagnose all other EGR DTC(s) first before continuing.
Start the engine.
With the DRBIII , read the EGR Position Sensor voltage.
Choose a conclusion that best matches the EGR voltage reading.
Below 3.5 volts
Between 3.5 volts to 4.3 volts
Above 4.3 volts
Engine Running and battery voltage above 10 volts.
POSSIBLE CAUSES
ACTION
Go To 3
Go To 5
Go To 6
156
APPLICABILITY
All
All