Guide To P0352 OBD Error Code Solutions

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The P0352 fault code can be defined as Ignition Coil “B” Primary/Secondary Circuit Malfunction. The last digit to this fault code would indicate that there is a problem which is detected within the ignition process of cylinder number 2. The coil is a transformer which would revamp the lower voltage supplied by the battery into the higher voltage that spark plugs need to ignite the fuel for a successful combustion process. On an average 70,000 to 100,000 volts are produced by a coil pack on average.

A coil pack can be called as a coil on plug or an ignition coil which is used to convert the standard battery voltage into the higher voltage which is needed for the internal combustion process of a car engine. The P0352 fault code can be set if the engine control module would detect an issue with the ignition process of the coil pack. Now in this case, the coil pack which is found malfunctioning is situated above the cylinder number 2.

This fault code would start indicating that the powertrain control module has detected a defect in the primary or secondary circuit of one or more ignition coils. A lot of OBD equipped vehicles utilize a “coil on plug” system to provide ignition spark. Now in this system, an ignition coil is secured to the engine in a way which would allow for the use of a small spark plug wire. Every ignition coil is controlled electronically by the powertrain control module.

What causes this problem with the Ignition Coil “B” Primary/Secondary Circuit Malfunction?

• Defects in the ignition coil
• There can be some faults in the spark plug
• Issue of damage or corrosion of the wires which are connecting the second cylinder coil pack to the engine control module
• There can be open or short in the wiring of the electrical circuit of the second cylinder coil pack
• Faults in the engine control module
• The coil pack might be flawed
• There can be short to voltage or ground on COP driver circuit
• Loose connection at coil or broken connector locks
• The powertrain control module might be defective
• Flaws in the idle air control valve or electronic body
• Carbon build up can cause blockage in the throttle body air passages
• Intake manifold vacuum might start leaking

1. Ignition Coil - A faulty Ignition Coil can be troublesome. You can always rely on us as we have best auto parts for our customers.
2. Powertrain Control Module - If everything is alright with Ignition Coil, then there is surely some defect in Powertrain Control Module. Get it replaced before the situation gets worse.
3. Engine Control Module - P0352 code can display due to some faults in the Engine Control Module. So, it is very important to replace the auto leaks with us at equitable prices.
4. Fuel Ignition System - Do you remember when was the last time you got your car Fuel Ignition System checked up? A faulty Fuel Ignition System can cause a lot of issues like displaying P0352 code.
5. Engine Wiring Connector - Poor Engine Wiring Connector can cause a lot of difficulties, so why not get it replaced at time?
6. Spark Plug - Are there some faults in your Spark Plug? Don’t waste time and get them replaced or else P0352 code can turn up.
7. Electronic Control Unit - OBD Code P0352 can appear because of faulty Electronic Control Unit.
8. Throttle Body - Everything is fine with Engine Wiring Connector and still P0352 code triggering? Then you must get your Throttle Body checked.

There could be countless symptoms which that would accompany with this fault code. Willing to know some common symptoms of OBD Trouble Code P0352? Your wish is our demand. Have a look at them below:

Common Symptoms

• Car engine may idle roughly
• Engine might misfire on acceleration
• The malfunction indicator lamp can start appearing
• There can be lack of power in the engine, especially under heavy load
• Issue of engine hesitation
• There can be hard to start condition of the engine
• Abnormal vibrations may be felt at idle or while driving

Looking out for some ways with the help of which you can correct this fault code? Then you have arrived at the correct place. We are here to help you out, so you must check out the steps mentioned below as follows:

• Make sure that you replace the spark plugs and spark plug wiring
• If you find out that there are some faults in the wiring in the coil pack, then it should be repaired or replaced as per the need
• Carefully repair the vacuum leaks such as leaks in the cracked vacuum line or intake manifold gasket
• The defective ignition coil should be replaced
• Faulty PCM should be replaced as per the requirement

Don’t get tensed if you are still facing any of these issues as we care for our customers and that’s why we offer a good range of fusion, wiring diagram, battery connectors, fuse and a lot more. We are sure that now all your issues would be resolved.

It is essential to diagnose this fault code. Here are some steps which a mechanic should follow for diagnosing the problem that triggered a P0352 code to be stored:

• First of all, you must perform a resistance test on the suspected coil pack
• The condition of the spark plug electrodes should be inspected
• Measure the voltage present at the coil pack
• Then you should inspect the wires connecting to the coil packs for fraying, corrosion and at times melting
• The coil pack circuit for a proper ground supply should be inspected properly
• The intake manifold for vacuum leaks should be checked
• Use a multimeter to measure the Hertz signal sent to a coil pack which would help verify whether the ECM is sending the proper signal to the coil pack

Common Mistakes When Diagnosing The P0352 Code

Most of the people might overlook the fact that a vacuum leak can be a reason why P0352 fault code is triggering. Also, some may neglect to measure the hertz signal that should be sent by the ECM to the coil pack. Measuring the Hertz signal will help you determine if the Engine Control Module is faulty, or if there is an interruption in the coil pack circuit, such as corrosion build up or damaged wiring.

Have a look at some common mistakes which are made when diagnosing the P0352 fault code:

• Most of the people replace the ignition coil when cause of the malfunction was a vacuum leak
• A lot of people might replace the Spark Plugs when in reality the issue can be leakage in the vacuum