Chrysler 300M 2002 Service Manual page 2616

Symptom:
P0453-NVLD PRESSURE SWITCH SENSE CIRCUIT HIGH
When Monitored and Set Condition:
P0453-NVLD PRESSURE SWITCH SENSE CIRCUIT HIGH
When Monitored: Engine Running.
Set Condition: If the PCM does not see the NVLD swtich close during test an error is
detected. One Trip Fault.
INTERMITTENT CONDITION
NVLD SWITCH SENSE CIRCUIT SHORTED TO BATTERY VOLTAGE
NVLD SENSE CIRCUIT SHORTED TO NVLD SOLENOID CONTROL CIRCUIT
NVLD ASSEMBLY
GROUND CIRCUIT OPEN
NVLD SENSE CIRCUIT OPEN
PCM
TEST
1 Start the engine.
Allow the engine to idle.
Using the DRBIII , perform the NVLD FORCED MONITOR TEST.
Monitor the NVLD Switch state.
NOTE: As the test runs, the NVLD Switch should go from an OPEN state to
a CLOSED state and then return to OPEN when the test is complete.
Did the NVLD Switch operate as described above?
Yes → Go To 2
→ Go To 3
No
POSSIBLE CAUSES
ACTION
187
DRIVEABILITY - NGC
APPLICABILITY
All