P0379 Camshaft position sensor “B” malfunction is out of range.

P0379 – OBD-II Trouble Code Technical Description

Malfunction of camshaft position sensor “B” out of range

What does the fault code mean P0379?

Trouble code P0379 is associated with the Camshaft Position Sensor “B” and is part of the engine management system in vehicles equipped with the OBD-II system. This code indicates that the camshaft position sensor “B” is out of range. The Camshaft Position Sensor “B” plays an important role in timing the ignition and fuel injection into the engine's cylinders, which affects engine efficiency and performance.

When code P0379 appears, various engine performance problems may occur. This can include rough idling, loss of power, poor fuel economy, and even possible misfire. These symptoms can reduce vehicle performance and reliability and lead to increased emissions.

To diagnose and repair a P0379 code, you must inspect the camshaft position sensor “B” and its wiring and connections. If a malfunction is detected, the sensor may need to be replaced or repaired. This is important to ensure proper engine operation and compliance with environmental emission standards.

Possible reasons

Potential causes of a P0379 trouble code include:

1. Malfunction of camshaft position sensor “B”.
2. Damaged or broken wiring, connections or connectors associated with the sensor.
3. Problems with the engine control module (ECM), which receives signals from the sensor.
4. Inconsistency between sensor parameters and expected values, which may be caused by improper installation or calibration of the sensor.
5. Inoperative camshaft “B” or problems with its mechanisms, which may affect the operation of the sensor.

To accurately diagnose and eliminate this problem, it is recommended to check each of the above components.

What are the symptoms of a fault code? P0379?

Symptoms that may occur when trouble code P0379 is present include:

1. Unstable engine operation: The engine may become unstable, resulting in fluctuating idle speed and rougher operation.
2. Power Loss: The vehicle may experience a loss of power, affecting its acceleration and overall performance.
3. MIL (Check Engine) Light: The Check Engine light on the instrument panel will illuminate to indicate a problem.
4. Poor fuel economy: Fuel consumption may increase due to improper engine operation.
5. Other related error codes: P0379 can be associated with other trouble codes such as P0377 and P0378, which can complicate diagnosis.

It is important to note that symptoms may vary depending on the specific make and model of car. For accurate diagnosis and repair, it is recommended to contact a specialist or car service center.

How to diagnose a fault code P0379?

The following steps are recommended to diagnose and repair DTC P0379:

Diagnostics:

1. Check Malfunction Indicator Indicator (MIL): The first step if you have a P0379 code is to check the fault indicator light on your instrument panel. Make sure it actually lights up and make a note of other associated error codes if there are any.
2. Use an OBD-II scanner: An OBD-II scanner will help you read the P0379 code and get more information about it. It can also provide data about the sensors and components associated with this code.
3. Check electrical connections: Inspect electrical connections, including connectors and wires associated with sensors and sensors that monitor crankshaft position.
4. Check the crankshaft position sensor: Diagnose the crankshaft position sensor itself. Check its integrity and connections. If the sensor is faulty, it may require replacement.
5. Wiring diagnostics: Check the wiring associated with the crankshaft position sensor for breaks, corrosion, or other damage. Perform resistance tests to ensure wire integrity.

Repairs:

1. Sensor replacement: If the crankshaft position sensor is faulty, replace it with a new original or high-quality analogue.
2. Repair or replacement of wiring: If problems are identified in the wiring, repair or replace damaged areas. Ensure a reliable electrical connection.
3. Reset the error code: After repairs and troubleshooting, reset the error code using an OBD-II scanner.
4. Repeated diagnostics: After repair, reconnect the OBD-II scanner and check that the P0379 code is no longer active and the malfunction indicator is no longer illuminated.

It is important to remember that depending on the make and model of your vehicle, additional steps or specific recommendations from the manufacturer may be required. If you do not have the necessary skills or experience, it is better to contact a professional auto mechanic or service center for diagnosis and repair.

Diagnostic errors

The following errors or difficulties may occur when diagnosing DTC P0379:

1. Incorrect interpretation of data: The interpretation of the error code may be inaccurate or incomplete, which may lead to incorrect diagnosis and repair.
2. Confusion with other error codes: Sometimes the P0379 code can be accompanied by other error codes, and it is necessary to properly determine which component is causing the underlying problem.
3. OBD-II scanner errors: If the OBD-II scanner does not read the data correctly or has technical problems, it may cause the error code to be incorrectly detected.
4. Problems with electrical connections: It is not always easy to detect problems with wiring or connectors, and errors can occur if they are not properly diagnosed.
5. Malfunctions of internal components: If the crankshaft position sensor or other components are faulty, this can make diagnosis difficult and cause errors.
6. Insufficient diagnostic experience: Non-professional diagnosticians may make mistakes when determining the cause of the P0379 code.

For more accurate diagnosis and error elimination, it is recommended to use a high-quality OBD-II scanner and, if necessary, contact an experienced auto mechanic or service center.

How serious is the fault code? P0379?

Trouble code P0379 is not one of the most serious, but it does indicate potential problems with the ignition and fuel injection timing system. This may affect engine performance and efficiency. It is important to consider its severity in the context of other symptoms and problems that may arise. In any case, it is recommended to carry out diagnosis and repair as soon as possible to avoid further problems with the car.

What repair will help eliminate the code? P0379?

To resolve the P0379 code, the following steps are recommended:

1. Replace the distributor sensor.
2. Check the wiring and connectors associated with the distributor sensor for breaks or corrosion and correct any problems found.
3. Check the condition of the ignition system, including spark plugs and coils, and make necessary repairs or replace parts as necessary.
4. Check the fuel and injection control system and correct any faults found.
5. Reset the code and test drive the vehicle to ensure the problem is resolved.

It is recommended that diagnosis and repair be carried out by a qualified auto mechanic or authorized service center as this may require specialized equipment and experience.

What is P0379 Engine Code [Quick Guide]

P0379 – Brand-specific information

The P0379 code can have different meanings depending on the make and model of the vehicle. Here is a list of several car brands and their corresponding meanings for the P0379 code:

1. Ford – P0379: External ignition distributor sensor circuit open.
2. Chevrolet – P0379: Distributor sensor signal circuit open.
3. Toyota – P0379: Crankshaft position sensor “B” – open circuit.
4. Honda – P0379: Crankshaft position sensor “B” – open circuit.
5. Volkswagen – P0379: Diesel water level sensor – signal too low.

Refer to the documentation and service manual for your specific vehicle make and model for more detailed information about the meaning and diagnosis of the P0379 code for your vehicle.