P003C Code- 'A' Camshaft Profile Control Performance/Stuck Off Bank 1

What Does Code P003C Mean

P003C OBD2 specifically refers to the camshaft (cam) timing. In this case, if the cam timing is over-retarded, the engine light will be illluminated and the code will be set.

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Possible symptoms

• Engine Light ON (or Service Engine Soon Warning Light)

Possible causes

• Faulty Camshaft Position Sensor
• Camshaft Position Sensor harness is open or shorted
• Camshaft Position Sensor circuit poor electrical connection

P003C OBDII Repair :

The sensors receive a 5 volt reference signal from the PCM. As pressure readings change, the sensor varies the voltage and the computer reads that to determine input. In the case of a broken wire, the sensor never sees the voltage and the computer assumes a major fault. So if you get this P003C code, first check to make sure you're getting a good 5 volt reference signal at the sensor.

Disconnected, dirty or fouled spark plugs are common causes for engines that won't start. Spark plugs typically need to be replaced every season or 25 hours of use. You should also check that the spark plug gap is set properly. If your spark plugs look good, problems with your ignition system can also preventing a spark. These can range from a faulty spark plug lead, shorted kill switch or flywheel key damage.