P0353 - IGNITION COIL C PRIMARY/SECUNDARY CIRCUIT MALFUNTION

The ignition system COP (Coil in the plug) is very used in modern engines. This has an individual coil that corresponds to each cylinder and is controlled by the PCM (Powertrain Control Module). This is no longer necessary spark plug wires, since the coil is located above the spark plug. They are connected by 2 cables, one is power that comes from the battery, which, in general, is from the power distribution center. The other cable belongs to the coil excitation circuit of the Power Train Control Module (PCM).

The PCM ground and disconnects this circuit and thus activates and deactivates the coil. The exciter circuit of the coil is monitored by the PCM, in case a fault occurs. If a short circuit is detected in the driver circuit of coil number 3, the DTC code P0353 OBD2 is set.

Symptoms of the DTC code P0353 Generic

• Check Engine light turns on.
• Sporadically, when you start the engine you may have difficulties.

The problems that can lead to the establishment of code P0353 can be the following:

• There may be a short to ground or voltage in the circuit of the COP system controller.
• Maybe there is a loose connection in the coil.
• The coil connector may be defective.

To solve the P0353 OBDII diagnostic code you can do the following:

• If you do not see a fault in the motor, you can manipulate the wires from coil number 3 to the Powertrain Control Module (PCM). If when you move the cables, you notice faults in the motor, it is indicative that the problem is in the cables. So check all cables for wear or inconsistency. You can also check that there is a good connection in the connector of the coil. Repair or change any component as necessary.
• In the event that the motor is failing, you can do the following: Turn off the motor and disconnect the connector from the wires of coil number 3. Then using a voltmeter and place it on the AC Hertz scale and you should read between the 5 and 20 Hertz, if so, implies that the controller is functioning correctly. You can replace the ignition coil as it is most likely defective.
• If on the other hand there is no frequency signal from the Power Train Control Module (PCM), in the ignition coil controller circuit, which could indicate that the PCM is not grounded in the circuit, you can leave the coil disconnected and check that there is direct current in the controller circuit of the ignition coil. If you notice a significant voltage, it is due to a short circuit. That is why you must locate where the short is and proceed to make the corresponding repairs.
• If there is no voltage in the circuit, you can disconnect the connector that leads to the PCM and verify that there is continuity of the controller between the PCM and the coil. If there is no continuity, it is due to a short to ground. If there is continuity, check the resistance between the ground and the ignition coil connector. The resistance must be infinite.