[SOLVED] Dodge P0839 Code: Fast Fix For 4Wd Switch High

The OBD code P0839 for Dodge refers to an issue with the Four Wheel Drive Switch Circuit.

Symptoms include the Engine Light being ON.

This code is typically caused by a faulty Four Wheel Drive Switch or related wiring issues.

It is important to address this problem promptly to avoid potential drivability issues.

A possible fix involves inspecting the switch, wiring harness, and connectors for any damage or poor connections.

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

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Symptoms of the Dodge p0839 OBD Code

The Dodge P0839 fault code typically triggers when there is an issue with the clutch pedal switch circuit.

Symptoms: Service Engine Soon Warning Light may illuminate.
Difficulty shifting gears.
Vehicle may not start.

Causes of the Dodge p0839 OBD Code

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P0839 in Dodge vehicles typically indicates an issue with the clutch pedal position sensor circuit.

P0839 can be caused by a faulty Four Wheel Drive Switch.
A Four Wheel Drive Switch harness that is open or shorted.
A Four Wheel Drive Switch circuit with poor electrical connection.

Fixing Dodge Error Code p0839 Step By Step

Replace the clutch start switch circuit in a Dodge vehicle showing fault code P0839.

To fix Dodge OBDII code P0839, first, review the ‘Possible Causes’ mentioned above and visually examine the corresponding wiring harness and connectors.
Ensure to check for any damaged components and inspect the connector pins for signs of being broken, bent, pushed out, or corroded.
If no visible issues are found, proceed to test the transmission fluid pressure switch circuit for proper operation.
Replace the transmission fluid pressure switch if it is faulty.
Clear the fault codes from the vehicle’s computer using a scan tool.
Test drive the vehicle to verify that the P0839 code does not return.

Cost Of Fixing Dodge p0839 Fault Code

The repair for Dodge fault code P0839 involves diagnosing and fixing an issue with the clutch pedal switch circuit.

The cost to diagnose and fix a Dodge OBD code P0839 typically ranges from $75 to $150, based on an estimated repair time of 1. 0 hour.

Factors like shop rates and complexity of the repair can influence the final cost.

Details of the Dodge p0839 OBD Code

Dodge fault code P0839 relates to the 4WD switch circuit range/performance issue.

Dodge OBD code P0839 means Four Wheel Drive (4WD) Switch Circuit High.

This code is triggered when the Powertrain Control Module (PCM) detects a high voltage signal from the 4WD switch circuit.

The 4WD switch is typically located on the dashboard or center console and allows the driver to select different 4WD modes.

When the PCM receives a high voltage signal from this switch circuit, it sets code P0839. This code is specific to an issue with the 4WD switch circuit and does not necessarily indicate a problem with the 4WD system itself.

Mechanic’s Tech Notes

This section provides detailed information on diagnosing and fixing Dodge code P0839.

To diagnose and fix OBDII code P0839 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.

Additionally, 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 will help identify and address any issues causing the P0839 code.

FAQ

1. What are the common symptoms associated with OBD code P0839 in a Dodge vehicle?

Common symptoms of OBD code P0839 in a Dodge vehicle include the Engine Light ON and possible issues with the Four Wheel Drive Switch system.

2. What is the typical cause of OBD code P0839 in a Dodge vehicle?

OBD code P0839 in a Dodge is typically caused by a faulty Four Wheel Drive Switch, open/shorted harness, or poor electrical connection. Inspect and repair as needed.

3. How can I diagnose and repair OBD code P0839 in my Dodge vehicle?

Diagnose and repair OBD code P0839 in Dodge: Symptoms Engine Light ON. Causes Faulty 4WD Switch, harness issues. Fix Inspect wiring, connectors for damage, corrosion.

Wrap Up

If your Dodge is displaying OBD code P0839 and experiencing shifting issues or the transmission not engaging properly, it could be caused by a faulty clutch position sensor circuit.

This code typically indicates a problem with the clutch position sensor or its wiring.

To address Dodge OBD code P0839, start by inspecting the wiring harness and connectors related to the clutch position sensor.

Check for any damaged wires, loose connections, or corrosion.

If no issues are found, consider testing or replacing the clutch position sensor itself to resolve the problem.