AutoCodes – Dodge – P0390 Dodge

P0390 Dodge Code - Camshaft Position Sensor Circuit Bank 2 Sensor 2

Quick Answer

The circuits of the Camshaft Position (CMP) Sensor include a 5-Volt reference circuit supplied by the Powertrain Control Module (PCM), a low reference circuit, and an output signal circuit. Common causes include Low engine oil, Faulty Camshaft Position (CMP) Sensor, Camshaft Position Sensor harness is open or shorted. Severity is High - diagnose this code as soon as possible. Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.

What it means: P0390 Dodge indicates Camshaft Position Sensor Circuit Bank 2 Sensor 2.
Common causes: Common causes include Low engine oil, Faulty Camshaft Position (CMP) Sensor, Camshaft Position Sensor harness is open or shorted.
Severity: High - diagnose this code as soon as possible.
Can I drive?: Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.

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Code Popularity 724

How popular is this code, among other codes? Low

Repair Importance Level

Urgent (Diagnose now) (3 / 3)

Repair Difficulty Level

Advanced (Pro) (3 / 3)

What is this?

Table of contents Created and updated by William Orellana on Jun 15, 2023

Description
Possible Causes
How To Fix
Tech Notes
Cost to Diagnose
FAQs
Comments
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Code P0390 Dodge Description

The circuits of the Camshaft Position (CMP) Sensor include a 5-Volt reference circuit supplied by the Powertrain Control Module (PCM), a low reference circuit, and an output signal circuit. The CMP Sensor is a digital output integrated circuit sensing device that is internally magnetically biased. It detects changes in magnetic flux between the high and low points of a tone wheel connected to the camshaft. When each tooth on the tone wheel passes by the CMP Sensor, the sensor electronics use the resulting change in the magnetic field to generate a digital output pulse. The sensor produces a digital ON/OFF DC voltage pulse with a frequency that varies depending on the number of output pulses per revolution of the camshaft, corresponding to the pattern on the camshaft tone wheel. The speed of the camshaft determines the frequency of the CMP Sensor output. The PCM interprets the tooth pattern to determine the position of the camshaft. This information is then utilized to synchronize the engine's ignition timing and fuel injection events. Additionally, the PCM uses the CMP Sensor output data to ascertain the relative position of the camshaft to the Crankshaft, enabling control of the CMP Actuator if it is present.
The Diagnostic Trouble Code (DTC) will be set if, during cranking, at least 2.5 seconds have elapsed with a Crankshaft Position Sensor signal present but no Camshaft Position Sensor signal or with the engine running, the Camshaft Position Sensor signal is lost for at least 0.4 seconds with a Crankshaft Position Sensor signal present.

OBDII Code P0390 Dodge - Camshaft Position Sensor Circuit Bank 2 Sensor 2 - AutoCodes.com — P0390 Dodge Code - Camshaft Position Sensor Circuit Bank 2 Sensor 2

What does this mean?

What are the Possible Causes of the DTC P0390 Dodge?

Low engine oil
Faulty Camshaft Position (CMP) Sensor
Camshaft Position Sensor harness is open or shorted
Camshaft Position Sensor circuit poor electrical connection
Faulty Powertrain Control Module (PCM)
Camshaft Tone Wheel loose/damaged or misaligned
Dead (Weak) battery

How to Fix the DTC P0390 Dodge?

Review the 'Possible Causes' above and visually examine the corresponding wiring harness and connectors. Check for damaged components and inspect connector pins for signs of being broken, bent, pushed out, or corroded.

What does this mean?

Code Tech Notes

In the event of a failure in either the Crankshaft Position (CKP) Sensor or Camshaft Position (CMP) Sensor, the engine can still start. The Powertrain Control Module (PCM) is capable of determining the engine position and initiating startup based on one of these two inputs. However, there may be a small delay in starting as the PCM needs time to establish synchronization. If either the CKP or CMP Sensor signals are absent during engine cranking, a Diagnostic Trouble Code (DTC) is recorded, and the Malfunction Indicator Lamp (MIL) lights up.

What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the P0390 Dodge code, it typically requires 1.0 hour of labor. Rates vary by location, vehicle, and shop. Many shops charge between $80–$150 per hour; dealerships and metro areas may be higher, independents may be lower.

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About the author: William Orellana is a Master Mechanic and Mechanical Engineer with over 30 years of experience diagnosing and repairing vehicles. Learn more about his background.

Frequently Asked Questions about P0390 Dodge Code

1. What are the common symptoms of OBDII code P0390 in a Dodge related to the Camshaft Position Sensor Circuit Bank 2 Sensor 2?

- Common symptoms include engine stalling or hesitation, rough idling, decreased fuel efficiency, and difficulty starting the vehicle.

2. What are some possible causes of the OBDII code P0390 in a Dodge indicating an issue with the Camshaft Position Sensor Circuit Bank 2 Sensor 2?

- Possible causes may include a faulty camshaft position sensor, wiring issues in the sensor circuit, sensor connector problems, or issues with the engine control module (ECM).

3. How can I diagnose the OBDII code P0390 in a Dodge related to the Camshaft Position Sensor Circuit Bank 2 Sensor 2?

- Diagnosing the code typically involves using an OBDII scanner to retrieve the code, checking the sensor's wiring and connector for damage, and testing the sensor's operation using a multimeter.

4. Can I continue driving my Dodge with the OBDII code P0390 indicating a problem with the Camshaft Position Sensor Circuit Bank 2 Sensor 2?

- It is not recommended to drive the vehicle with this code present, as it can lead to further engine issues and potential safety hazards. It's best to address the problem promptly.

5. How can I repair the OBDII code P0390 in a Dodge associated with the Camshaft Position Sensor Circuit Bank 2 Sensor 2?

- Repairing the issue may involve replacing the faulty camshaft position sensor, repairing damaged wiring or connectors, and clearing the code using an OBDII scanner.

6. Are there any tips for preventing the OBDII code P0390 in a Dodge related to the Camshaft Position Sensor Circuit Bank 2 Sensor 2 from reoccurring?

- To prevent the code from reoccurring, ensure regular maintenance of the camshaft position sensor, check the sensor's wiring periodically for damage, and use high-quality replacement parts.

7. Can a DIY enthusiast fix the OBDII code P0390 in a Dodge concerning the Camshaft Position Sensor Circuit Bank 2 Sensor 2?

- Depending on your skill level and experience with automotive repairs, it may be possible to fix this issue yourself by following repair guides and using the necessary tools and equipment.

8. How long does it typically take to repair the OBDII code P0390 in a Dodge associated with the Camshaft Position Sensor Circuit Bank 2 Sensor 2?

- The repair time can vary depending on the exact cause of the issue and the individual's experience level, but it may take anywhere from 1 to 3 hours to complete the repair.

9. What are the potential risks of ignoring the OBDII code P0390 in a Dodge indicating a problem with the Camshaft Position Sensor Circuit Bank 2 Sensor 2?

- Ignoring this code can lead to engine performance issues, potential damage to other engine components, increased fuel consumption, and ultimately, more costly repairs down the line.

10. Is it necessary to reset the ECU after fixing the OBDII code P0390 in a Dodge related to the Camshaft Position Sensor Circuit Bank 2 Sensor 2?

- It is recommended to reset the Engine Control Unit (ECU) after fixing the issue to clear the fault code and ensure proper functioning of the system.