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P0855 Dodge Code - Drive Switch Input Circuit High

Quick Answer

The P0855 code for Dodge vehicles indicates a problem with the drive switch input circuit being too high. Common causes include Faulty drive switch on the transmission, Wiring issues or shorts in the drive switch circuit, Corrosion or poor connections in the circuit. 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
P0855 Dodge indicates Drive Switch Input Circuit High.
Common causes
Common causes include Faulty drive switch on the transmission, Wiring issues or shorts in the drive switch circuit, Corrosion or poor connections in the circuit.
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.
What is this?
Table of contents Created and updated by William Orellana on Sep 07, 2024
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Code P0855 Dodge Description

The P0855 code for Dodge vehicles indicates a problem with the drive switch input circuit being too high. This code typically points to an issue with the drive switch on the transmission or the wiring associated with it. The drive switch is responsible for selecting the vehicle's drive mode (such as park, reverse, neutral, drive, etc.), and if there is a high input signal detected, it can lead to various issues with the vehicle's performance.

OBDII Code P0855 Dodge - Drive Switch Input Circuit High
P0855 Dodge Code - Drive Switch Input Circuit High

Common Causes of P0855 Dodge

  1. Faulty drive switch on the transmission
  2. Wiring issues or shorts in the drive switch circuit
  3. Corrosion or poor connections in the circuit
  4. Faulty transmission control module (TCM)
  5. Software glitches or programming issues

Symptoms of P0855 Dodge

  1. Harsh shifting or delayed shifting
  2. Transmission not shifting into the correct gear
  3. Vehicle going into "limp mode"
  4. Decreased fuel efficiency
  5. Check Engine Light illuminated

How to Fix P0855 Dodge

  1. Begin by diagnosing the specific cause of the high input circuit issue using a professional diagnostic scanner to pinpoint the exact source of the problem.
  2. Inspect the drive switch on the transmission for any visible damage or signs of malfunction. Replace the switch if necessary.
  3. Check the wiring harness associated with the drive switch for any damage, corrosion, or loose connections. Repair or replace the wiring as needed.
  4. Test the transmission control module (TCM) to ensure it is functioning correctly. Replace the TCM if it is found to be faulty.
  5. Clear the diagnostic trouble codes, reset the system, and test drive the vehicle to ensure the issue has been resolved.

Cost to Fix P0855 Dodge

The cost of repairing a P0855 code can vary depending on the specific cause of the issue and the labor rates in your area. On average, you can expect to pay between $150 to $500 for parts and labor. Keep in mind that diagnostic time and labor rates at auto repair shops can vary, so it's advisable to check with your local shop for a more accurate estimate. Additionally, the cost may be higher if the issue requires more extensive repairs or component replacements.

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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 P0855 Dodge Code

1. What are the common symptoms of OBDII code P0855 in a Dodge vehicle?

- Common symptoms include the illumination of the check engine light, difficulty shifting gears, and potential loss of cruise control function.

2. What does the OBDII code P0855 Drive Switch Input Circuit High mean for a Dodge?

- This code indicates that there is a high voltage condition in the drive switch input circuit, which may affect the vehicle's transmission control module.

3. What are the possible causes of OBDII code P0855 in a Dodge?

- Possible causes include a faulty drive switch, damaged wiring or connectors in the circuit, a malfunctioning transmission control module, or a software issue.

4. How can I diagnose the OBDII code P0855 Drive Switch Input Circuit High in my Dodge?

- Diagnosis typically involves using a scan tool to read the code, checking the drive switch and its wiring for damage, and testing the transmission control module for proper function.

5. Can I still drive my Dodge with the OBDII code P0855 present?

- It is recommended to address the issue promptly to prevent potential transmission problems. While you may be able to drive the vehicle, it is best to have it inspected and repaired.

6. How can I repair OBDII code P0855 in my Dodge?

- Repair options may include replacing the drive switch, repairing or replacing damaged wiring or connectors, resetting the transmission control module, or updating software as needed.

7. Is it possible to reset the OBDII code P0855 Drive Switch Input Circuit High in a Dodge?

- Resetting the code may temporarily turn off the check engine light, but if the underlying issue is not addressed, the code is likely to reappear during driving.

8. Can a DIY enthusiast fix the OBDII code P0855 issue in a Dodge?

- Depending on the individual's skill level and access to tools, some DIY enthusiasts may be able to address simpler causes like damaged wiring. However, more complex issues may require professional assistance.

9. Will fixing OBDII code P0855 improve the performance of my Dodge vehicle?

- Resolving this code can help restore proper transmission function, prevent potential damage, and ensure smoother operation of the vehicle.

10. How long does it typically take to repair OBDII code P0855 in a Dodge?

- The repair time can vary depending on the exact cause of the issue. Simple fixes like replacing a drive switch may take less time, while diagnosing and repairing wiring or module issues could be more time-consuming.

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