Engine-CodesDodge – P0999 Dodge

P0999 Dodge Code - Shift Solenoid 'F' Control Circuit High

Quick Answer

The P0999 diagnostic trouble code for Dodge vehicles indicates a problem with the Shift Solenoid 'F' control circuit being detected as high by the Engine Control Module (ECM). Common causes include Faulty shift solenoid 'F', Wiring or connector issues in the control circuit, ECM malfunction. 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
P0999 Dodge indicates Shift Solenoid 'F' Control Circuit High.
Common causes
Common causes include Faulty shift solenoid 'F', Wiring or connector issues in the control circuit, ECM malfunction.
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.
Table of contents Created and updated by William Orellana on Sep 08, 2024
💬 Need more help? Ask Auto Expert for instant answers — it's free!
AutoCodes App

Fix Your Car Smarter

Try the New AutoCodes App!

Get complete OBDII diagnostics, repair solutions, and cost estimates, plus AI chat support on demand.

AutoCodes App on Google Play

Code P0999 Dodge Description

The P0999 diagnostic trouble code for Dodge vehicles indicates a problem with the Shift Solenoid 'F' control circuit being detected as high by the Engine Control Module (ECM). The shift solenoid is a critical component of the transmission system responsible for controlling the flow of transmission fluid to engage specific gears. In this case, a high voltage signal is being sent to the ECM from the shift solenoid 'F', indicating an issue with the circuit.

OBDII Code P0999 Dodge - Shift Solenoid 'F' Control Circuit High
P0999 Dodge Code - Shift Solenoid 'F' Control Circuit High

Common Causes of P0999 Dodge

  1. Faulty shift solenoid 'F'
  2. Wiring or connector issues in the control circuit
  3. ECM malfunction
  4. Low transmission fluid levels
  5. Contaminated or degraded transmission fluid

Symptoms of P0999 Dodge

  1. Harsh or delayed shifting
  2. Erratic shifting patterns
  3. Transmission slipping
  4. Transmission overheating
  5. Illuminated Check Engine Light

How to Fix P0999 Dodge

  1. Perform a comprehensive diagnostic scan to confirm the P0999 code and identify the specific cause of the issue.
  2. Inspect the wiring and connectors in the shift solenoid 'F' control circuit for any signs of damage or corrosion. Repair or replace as needed.
  3. Test the shift solenoid 'F' to determine if it is functioning properly. Replace the solenoid if it is found to be faulty.
  4. Check the transmission fluid level and condition. Top up or replace the fluid if necessary.
  5. Clear the trouble code from the ECM and test drive the vehicle to ensure the issue has been resolved.

Cost to Fix P0999 Dodge

The typical repair costs for addressing a Shift Solenoid 'F' Control Circuit High code can range from $200 to $500, including parts and labor. However, the specific diagnosis time and labor rates at auto repair shops can vary based on factors such as location, vehicle make and model, and engine type. It is recommended to inquire with local auto repair shops to obtain a more accurate estimate based on your specific circumstances. Keep in mind that rates may be higher at dealerships or in metropolitan areas, while independent shops may offer more competitive pricing.

Need more information about the P0999 Dodge code?

Need more information on how to fix the P0999 Dodge code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the P0999 Dodge code diagnosed by a professional: Find a repair shop in your area

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 P0999 Dodge Code

No Frequently Asked Questions about P0999 Dodge Code found.

Discuss the causes and fixes for P0999 Dodge OBDII Code

Code P0999 Dodge comments

No comments found for this page.