Chrysler 300M 2002 Service Manual page 2613

DRIVEABILITY - NGC
Symptom:
P0452-NVLD PRESSURE SWITCH SENSE CIRCUIT LOW
When Monitored and Set Condition:
P0452-NVLD PRESSURE SWITCH SENSE CIRCUIT LOW
When Monitored: Immediately after engine start up.
Set Condition: The PCM activates the NLVD Solenoid. If PCM does not see NVLD switch
open and error is detected. One Trip Fault.
INTERMITTENT CONDITION
NVLD ASSEMBLY
EVAP PURGE SOLENOID CONTROL CIRCUIT SHORTED TO GROUND
NVLD SENSE CIRCUIT SHORTED TO GROUND
EVAP PURGE SOLENOID LEAKS/STUCK 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 8
No
2 Turn the ignition off.
Disconnect the EVAP Purge Solenoid harness connector.
Ignition on, engine not running.
Using a 12-volt test light, jumper across the EVAP Purge Solenoid harness connector.
With the DRBIII , actuate the EVAP Purge Solenoid.
Does the test light flash on and off?
Yes → Go To 3
→ Go To 7
No
POSSIBLE CAUSES
ACTION
184
APPLICABILITY
All
All