P0499 CHRYSLER – NVLD Vent Valve Solenoid Circuit High

P0499 CHRYSLER Possible Symptoms

Engine Light ON (or Service Engine Soon Warning Light)

P0499 CHRYSLER Possible Causes

Faulty NVLD Vent Solenoid,NVLD Vent Solenoid harness is open or shorted,NVLD Vent Solenoid circuit poor electrical connection

P0499 CHRYSLER Description

The Natural Vacuum Leak Detection (NVLD) system is the next generation evaporative leak detection system that will first be used on vehicles equipped with the Next Generation Controller (NGC). This new system replaces the leak detection pump as the method of evaporative system leak detection. This is to detect a leak equivalent to a 0.020 (0.5 mm) hole. This system has the capability to detect holes of this size very dependably.