Diagnosing & Fixing P0850 Fault Code in a 2019 Dodge Challenger SXT

Introduction

Imagine this: You’re all set to take your 2019 Dodge Challenger SXT out for a drive, but something feels off. A quick diagnostic scan reveals a P0850 fault code. What does this mean, and how do you fix it? If you’re searching for answers, you’ve come to the right place.

Understanding the P0850 Fault Code

The P0850 code refers to an issue with the Park/Neutral Switch Input Circuit. This switch is responsible for detecting whether your vehicle is in Park, Neutral, Drive, or Reverse and sends the corresponding signal to the Engine Control Module (ECM). When the ECM receives an improper or missing signal, it triggers the P0850 code.

Common Symptoms of P0850 in a 2019 Dodge Challenger SXT:

• Check Engine Light illuminated on the dashboard
• Difficulty shifting gears
• Transmission may stay in limp mode
• Inconsistent starting behavior (especially in Park or Neutral)
• Delayed acceleration response

Step-by-Step Diagnosis of P0850

Step 1: Scan the ECM for Fault Codes

• Use an OBD-II scanner to confirm the presence of P0850.
• Check if any additional fault codes are present, as multiple codes can indicate related issues.

Step 2: Inspect the Transmission Shifter Assembly & Wiring

• Locate the Park/Neutral position switch near the shifter assembly.
• Check for loose, damaged, or corroded wiring connections.
• Inspect the 68205233AJ Transmission Shifter Assembly, as this component often fails in Dodge Challenger models from 2017-2019.

Step 3: Test the Park/Neutral Switch Signal

• Using a multimeter, check for continuity and proper voltage in the switch circuit.
• Ensure the switch sends the correct signal when shifting between gears.

Step 4: Reset the Code and Test Drive

• Clear the P0850 code using the OBD-II scanner.
• Start the vehicle and shift through all gears to check if the issue persists.
• If the code returns, proceed with part replacement.

Recommended Fix for P0850 in Dodge Challenger SXT

After diagnosing the issue, the most effective fix is to replace the transmission shifter assembly. Based on real-world cases, a faulty 68205233AJ Transmission Shifter Assembly is the most common culprit for this issue.

✅ Recommended Part Replacement: 68205233AJ Transmission Shifter Assembly

Replacement Procedure:

1. Disconnect the Battery to avoid electrical damage.
2. Remove the Center Console to access the shifter assembly.
3. Unplug the Electrical Connectors and shift linkage.
4. Remove the Old Transmission Shifter Assembly.
5. Install the New Assembly and reconnect all components securely.
6. Reassemble the Console and reconnect the battery.
7. Perform a System Reset using an OBD-II scanner.
8. Test Drive the Vehicle to ensure the problem is resolved.

Conclusion

The P0850 fault code in a 2019 Dodge Challenger SXT is often caused by a failing transmission shifter assembly. By following a structured diagnostic approach and replacing the necessary components, you can restore your vehicle’s performance efficiently.

If you’re experiencing this issue, consider replacing the 68205233AJ Transmission Shifter Assembly, which is available on AUTOTEK.

Need More Help?

If you have any questions or need further assistance, our team at AUTOTEK is here to help! Leave a comment below or contact us directly for expert advice via our WhatsApp +971 4 882 3311.