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Home >> Chrysler >> 2007 >> PT Cruiser Base, 2D Convertible, Standard >> Repair and Diagnosis >> Engine Performance >> System >> DTCS P0340 To P050B >> P0453-NVLD Pressure Switch Stuck Open >> Possible Causes

Possible Causes

Possible Causes 
(K107) NVLD SWITCH SIGNAL CIRCUIT SHORTED TO BATTERY VOLTAGE
(K107) NVLD SWITCH SIGNAL CIRCUIT OPEN
(K107) NVLD SWITCH SIGNAL CIRCUIT SHORTED TO (K106) NVLD SOLENOID CONTROL CIRCUIT
(Z904) GROUND CIRCUIT OPEN
NVLD ASSEMBLY
PCM

Always perform the Pre-Diagnostic Troubleshooting procedure before proceeding. Refer to PRE-DIAGNOSTIC TROUBLESHOOTING PROCEDURE .