P0342 OBD-II Trouble Code: Camshaft position sensor "A" circuit low

Description of DTC code P0342 Generic

The CMP (camshaft position sensor) is an electronic device used in engines to record the speed of the camshaft. This information is then sent to the ECM (Engine Control Module), which uses it to control fuel injection as well as ignition timing.

The camshaft retraction is detected by the CMP sensor and thus identifies a particular cylinder. The piston position is also determined by the CMP sensor. If there is a fault in this sensor, the ECM will not know when the valve is opening or closing.

OBDII diagnostic code P0342 refers to a low or insufficient CMP sensor signal.

Fault code P0342 Common symptoms

• Fault light is on.
• Difficulty starting the engine.
• Power loss.
• High fuel consumption.

Cause of OBD2 code P0342 Generic

When DTC code P0342 OBDII is established, it indicates one or more of the following faults.

• The camshaft position sensor (CMP) lead or connector may be damaged, resulting in a short circuit.
• The CMP sensor is faulty.
• The cable to the starter motor may be worn or defective.
• Bad starter motor
• Battery may be bad.

Possible solutions for DTC code P0342 Generic

The steps to correctly correct fault code P0342 OBD2 are

• Check the TBS (Technical Service Bulletin). The manufacturer may know the solution to your problem.
• A low battery charge can set a code, so check the charge level.
• Check the wiring system leading to the starter. Look for corroded or defective cables. Make any necessary repairs or changes.
• Check the condition of the cables associated with the CMP sensor. Also check the connector, as it may be corroded. If there are bad cables, replace them or replace the sensor.
• Check that the starter motor is not overdraining