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Home >> Jeep >> 2005 >> Wrangler Rubicon, Standard >> Repair and Diagnosis >> External Pages >> Different car >> Section 488 (Powertrain Diagnostic Procedures - Gas) >> Diagnostic Information And Procedures >> DRIVEABILITY - NGC - Diagnostic Tests >> P0453-NVLD Pressure Switch Stuck Open >> Possible Causes

Possible Causes

WARNING: This page is about a different car, the 2005 Jeep Liberty. However, it is still accessible from the selected car via links, so may be relevant.

NVLD SWITCH OPERATION

VEHICLE HISTORY AND SERVICE BULLETIN INVESTIGATION

NVLD ASSEMBLY

NVLD SWITCH SIGNAL CIRCUIT SHORTED TO BATTERY VOLTAGE

NVLD SWITCH SIGNAL CIRCUIT OPEN

NVLD SWITCH SIGNAL CIRCUIT SHORTED TO THE SOLENOID CONTROL CIRCUIT

GROUND CIRCUIT OPEN

PCM

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