P0368 Camshaft Position Sensor Circuit High (Sensor B, Bank 1)

P0368 – OBD-II Trouble Code Technical Description

Trouble code P0368 indicates that the engine control module (PCM) has detected too high voltage in the camshaft position sensor “B” circuit (bank 1).

What does the fault code mean P0368?

Trouble code P0368 indicates a signal or voltage problem with the camshaft position sensor “B” (bank 1) circuit. This means that the engine control module (PCM) has detected an anomaly in the signal from the camshaft position sensor.

Possible reasons

Some possible reasons for the P0368 trouble code:

• Faulty camshaft position (CMP) sensor: The sensor itself may be damaged or fail due to normal wear and tear or other reasons.
• Problems with wiring or connections: Opens, shorts, or oxidation in the wiring, connections, or connectors connecting the sensor to the engine control module (ECM or PCM) can cause P0368.
• Incorrect sensor position: The sensor may be incorrectly installed or misaligned, which may result in an incorrect signal reading.
• Problems with the rotor or steering wheel: The CMP sensor can interface with the rotor or steering wheel. Problems with these components, such as wear, damage, or contamination, can affect the proper functioning of the sensor.
• Problems with the engine control module (ECM or PCM): In rare cases, the cause may be related to the engine control unit itself, which does not correctly process the signals from the sensor.

These are just some of the possible causes of the P0368 code, and to determine the exact cause, it is recommended that you conduct a detailed diagnosis of the vehicle using specialized equipment or contact a qualified mechanic.

What are the symptoms of a fault code? P0368?

Symptoms for a P0368 trouble code can vary depending on the specific cause of the code and the nature of the problem, but some common symptoms that may be experienced include:

• Check Engine: The appearance of the “Check Engine” light on the instrument panel is one of the most common symptoms of a P0368 code.
• Unstable engine operation: A problem with the camshaft position sensor can cause the engine to run erratically, such as shaking, rough running, jerking or even stalling.
• Loss of power: Incorrect reading of the signal from the CMP sensor may result in loss of engine power, especially when accelerating or under load.
• Ignition misfires: A faulty sensor can cause misfire, which manifests itself as jerking during acceleration or a floating idle.
• Deterioration in fuel efficiency: Improper operation of the camshaft position sensor may result in increased fuel consumption due to improper fuel/air mixture or improper fuel injection timing.
• Deterioration of engine dynamics: There may be a general deterioration in engine dynamics, including increased acceleration time or throttle response.

It is important to remember that these symptoms can occur to varying degrees and depend on the specific cause of the P0368 code and other factors. If you notice any of these symptoms, it is recommended that you contact a qualified mechanic to diagnose and repair the problem.

How to diagnose a fault code P0368?

To diagnose DTC P0368, we recommend following these steps:

1. Checking Error Codes: Use a diagnostic scan tool to read all trouble codes including P0368. This will help identify other problems that may be related to the P0368 code.
2. Visual inspection of the CMP sensor: Check the camshaft position (CMP) sensor for damage, contamination or oil leaks. Make sure it is properly secured and connected.
3. Checking wiring and connectors: Inspect the wiring connecting the CMP sensor to the engine control module (ECM or PCM) for opens, shorts, or corrosion. Check the connectors for damage and make sure there is good contact.
4. Sensor resistance measurement: Use a multimeter to measure the resistance of the CMP sensor according to the manufacturer's specifications. Incorrect resistance may indicate a faulty sensor.
5. Checking the sensor signal: Using an oscilloscope or diagnostic scanner, check the signal from the CMP sensor to the ECM or PCM. Make sure the signal is stable and within expected values.
6. Checking the power system and ground: Make sure the CMP sensor is receiving proper power and has a good ground connection.
7. Additional tests and diagnostics: If necessary, perform additional tests such as checking the ignition system, fuel injection system and other engine management system components.
8. Replacing the sensor or repairing the wiring: If the CMP sensor or wiring is found to be faulty, replace the sensor or repair the wiring according to the diagnostic results.

After completing these steps, it is recommended to take a test drive to verify that the problem has been successfully resolved. If the P0368 error code appears again, you may need more in-depth diagnosis or professional help.

Diagnostic errors

When diagnosing DTC P0368, the following errors may occur:

• Misinterpretation of data: Incorrect understanding or interpretation of data received from the CMP sensor or other systems may lead to incorrect conclusion about the causes of the P0368 code.
• Missing diagnostics: Skipping certain diagnostic steps or not paying enough attention to detail may result in missing factors that may be related to the problem.
• Insufficient equipment or experience: Some tests, such as measuring resistance or analyzing a signal using an oscilloscope, require specialized equipment and experience to correctly interpret the results.
• Problems with wiring or connectors: Failure to inspect wiring or connectors may result in missing opens, shorts, or other problems in the circuit.
• Wrong solution to the problem: Selecting the wrong method to repair or replace components may result in additional problems or incomplete results.
• Hardware or software malfunctions: Errors may occur due to faulty or incorrectly calibrated hardware or software used.

It is important to be aware of these possible errors and contact qualified technicians or service centers with sufficient experience and equipment to accurately and effectively diagnose and correct the problem.

How serious is the fault code? P0368?

Trouble code P0368 is quite serious because it indicates a problem with the camshaft position (CMP) sensor. Incorrect operation of this sensor can result in engine roughness, loss of power, increased fuel consumption, and other serious problems with engine performance and efficiency.

It is important to resolve the cause of the P0368 code as soon as possible to avoid further damage and ensure normal engine operation. Problems with the camshaft position sensor can lead to serious consequences, including loss of vehicle control and even accidents in some cases.

However, it is important to remember that the severity of the problem may vary depending on the specific cause of the error and the nature of the problem. In some cases, the problem can be fixed fairly easily, while in other cases, more extensive repairs or replacement of engine components may be required.

If you encounter a P0368 trouble code, it is recommended that you contact a qualified mechanic or service center to diagnose and repair the problem. Only an experienced specialist will be able to correctly determine the cause and fix the problem, ensuring the safety and reliability of your car.

What repair will help eliminate the code? P0368?

Troubleshooting DTC P0368 may require several steps depending on the specific cause of the error:

1. Replacing the Camshaft Position (CMP) Sensor: If the CMP sensor is identified as the source of the problem during diagnosis, it should be replaced with a new one that matches the original sample.
2. Checking and replacing wiring and connectors: Check the wiring and connectors connecting the CMP sensor to the engine control module (ECM or PCM). If necessary, replace damaged wires or connectors.
3. Checking and servicing the rotor and steering wheel: Check the condition of the rotor and steering wheel that the CMP sensor interacts with. Make sure they are in good condition and not damaged or dirty.
4. Checking the engine control module (ECM or PCM): In rare cases, the problem may be with the engine control unit itself. Check it for any malfunctions or damage.
5. Additional diagnostics and maintenance: In some cases, the cause of the P0368 code may be more complex and require additional diagnostics or service to other engine components such as the ignition system, fuel injection system, and others.

After completing repairs, it is recommended to conduct a test drive to verify that the problem has been successfully resolved. If DTC P0368 no longer appears, the problem has been successfully resolved. If the problem persists, it is recommended that you contact a professional mechanic or service center for further diagnosis and repair.

How to Fix P0368 Engine Code in 3 Minutes [2 DIY Methods / Only $9.86]

P0368 – Brand-specific information

Trouble code P0368 can have different meanings depending on the specific brand of vehicle. Here are some examples with their transcripts:

1. Chevrolet: P0368 – Camshaft Position (CMP) Sensor – Signal Voltage High.
2. Ford: P0368 – Camshaft Position (CMP) Sensor – Signal Voltage High.
3. Toyota: P0368 – Camshaft sensor “B” – voltage too low.
4. Honda (Honda): P0368 – Camshaft Position Sensor “B” – Voltage High.
5. Nissan (Nissan): P0368 – Camshaft position sensor “B” – voltage too high.
6. BMW: P0368 – Camshaft Position Sensor “B” – Signal Voltage Low.

Each manufacturer may have its own definitions of trouble codes, so it is recommended that you consult the manufacturer's documentation or a qualified service center for accurate information about your specific vehicle brand.