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P0453-NVLD PRESSURE SWITCH STUCK OPEN (CONTINUED) 2. NVLD ASSEMBLY Turn the ignition off. Disconnect the NVLD electrical harness connector. Ignition on, engine not running. Monitor the NVLD Switch state on the scan tool. Connect a jumper wire between the (K107) NVLD Switch Signal circuit Does the Switch change from OPEN to CLOSED with the Yes >> Replace the NVLD Assembly. Perform the POWERTRAIN VERIFICATION TEST. (Refer No >> Go To 3 NOTE: Remove the jumper wire before continuing. 3. (K107) NVLD SWITCH SIGNAL CIRCUIT SHORTED TO BATTERY VOLTAGE Turn the ignition off. Disconnect the C3 PCM harness connector. Ignition on, engine not running. Measure the voltage on the (K107) NVLD Switch Signal circuit in the Is the voltage above 0 volts? Yes >> Repair the short to battery voltage in the (K107) NVLD Switch Signal circuit. Perform the POWERTRAIN VERIFICATION TEST. (Refer No >> Go To 4 9 - 494 ENGINE - ELECTRICAL DIAGNOSTICS - 3.7L/4.7L/5.7L DR/DH |