[SOLVED] Dodge P0390 Code: Quick Fix For Camshaft Position Sensor

The OBD code P0390 for Dodge indicates a problem with the Camshaft Position Sensor B Circuit.

Symptoms include the engine light being on, lack of power, and engine stalling.

Causes can range from low engine oil to a faulty sensor or wiring issues.

This issue should be addressed promptly to prevent further damage.

A possible fix involves inspecting and repairing any damaged components or wiring connections related to the Camshaft Position Sensor circuit.

Repair Importance Level	10.0 (Out of 10)
Estimated Repair Time	Approximately 1.0 hour
Repair Difficulty Level	10.0 (Out of 10)

Symptoms of the Dodge p0390 OBD Code

The vehicle may experience issues related to the camshaft position sensor circuit malfunction (Dodge code P0390).

With Dodge OBD code P0390, the Engine Light will be ON.
Lack of power may be experienced while driving.
The engine might stall unexpectedly.

Causes of the Dodge p0390 OBD Code

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Possible reasons for fault code P0390 on a Dodge include issues with the camshaft position sensor circuit.

P0390 can be caused by 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.

Fixing Dodge Error Code p0390 Step By Step

Replace the camshaft position sensor on the Dodge vehicle to address fault code P0390.

To fix the Dodge OBDII code P0390, start by reviewing the possible causes mentioned above and visually examining the corresponding wiring harness and connectors.
Check for any damaged components and inspect the connector pins for signs of being broken, bent, pushed out, or corroded.
If the wiring and connectors appear to be in good condition, proceed to test the camshaft position sensor for proper operation.
Replace the camshaft position sensor if it is found to be faulty.
Clear the fault codes from the vehicle’s computer using a scan tool.
Test drive the vehicle to ensure the code does not return.

Cost Of Fixing Dodge p0390 Fault Code

The repair for Dodge fault code P0390 typically involves replacing the camshaft position sensor.

The cost to diagnose and fix the Dodge OBD code P0390 is typically based on an estimated repair time of 1. 0 hour.

Labor rates range from $75 to $150 per hour, so the cost can vary depending on shop rates and the complexity of the repair.

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Details of the Dodge p0390 OBD Code

Dodge fault code P0390 relates to a camshaft position sensor ‘B’ circuit malfunction.

Dodge OBD code P0390 means that a camshaft position sensor B circuit signal is detected.

This code is triggered by the Engine Control Module (ECM) when it detects an incorrect signal from the camshaft position sensor B circuit.

The camshaft position sensor B is responsible for monitoring the position of the camshaft in relation to the crankshaft.

When the ECM receives an abnormal signal from this sensor, it triggers the P0390 fault code.

This code is specific to Dodge vehicles and can indicate issues with the camshaft position sensor itself, the wiring connected to it, or the ECM.

Mechanic’s Tech Notes

Detailed information on diagnosing and repairing fault code P0390 in Dodge vehicles.

To diagnose and fix OBDII code P0390 in a Dodge, start by checking the Transmission Control Module (TCM) power and ground using a multimeter.

Verify TCM communication over the Controller Area Network (CAN) using a scan tool.

If the TCM does not respond, reprogramming or reflashing may be necessary.

Visually inspect the wiring harness and connectors for any damage, and check connector pins for signs of being broken, bent, pushed out, or corroded.

This thorough inspection can help identify and address potential issues causing the P0390 fault code.

FAQ

1. What are the common symptoms associated with OBD code P0390 in a Dodge vehicle?

Common symptoms of OBD code P0390 in a Dodge vehicle include Engine Light ON, lack of power, engine stall. Causes may include faulty CMP sensor, wiring issues. Fix: Inspect and repair as needed.

2. What is the typical cause of OBD code P0390 in a Dodge vehicle?

The typical cause of OBD code P0390 in a Dodge vehicle is a faulty Camshaft Position (CMP) Sensor or issues with the sensor circuit or wiring harness.

3. How can I diagnose and repair OBD code P0390 in my Dodge vehicle?

Diagnose P0390 in Dodge: Check engine oil level, inspect CMP sensor and wiring, test PCM, ensure camshaft tone wheel alignment, and examine battery and connectors.

Wrap Up

If your Dodge is displaying OBD code P0390 and experiencing rough idling or stalling, it may be caused by a faulty camshaft position sensor, damaged wiring in the camshaft position sensor circuit, or a problem with the camshaft phaser.

To address Dodge OBD code P0390, inspect the camshaft position sensor and its wiring harness for any signs of damage or corrosion.

Test the sensor’s electrical connectors for proper connection and continuity.

Consider replacing the camshaft position sensor if necessary to resolve the issue.