Engine-Codes.com
Engine-Codes – GMC – P182F 2014 GMC Sierra

P182F 2014 GMC Sierra Code - Internal Mode Switch 'C' Circuit High Voltage

Quick Answer

The P182F diagnostic trouble code (DTC) for a 2014 GMC Sierra indicates an issue with the Internal Mode Switch 'C' Circuit High Voltage. Common causes include Faulty Internal Mode Switch, Damaged wiring or connectors in the 'C' circuit, Issues with the vehicle's control module. 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
P182F 2014 GMC Sierra indicates Internal Mode Switch 'C' Circuit High Voltage.
Common causes
Common causes include Faulty Internal Mode Switch, Damaged wiring or connectors in the 'C' circuit, Issues with the vehicle's control module.
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 13, 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 P182F 2014 GMC Sierra Description

The P182F diagnostic trouble code (DTC) for a 2014 GMC Sierra indicates an issue with the Internal Mode Switch 'C' Circuit High Voltage. The Internal Mode Switch (IMS) is a component within the transmission that communicates the gear selection to the vehicle's control module. In this case, the 'C' circuit is reporting a high voltage, which can lead to various problems with the transmission's operation.

OBDII Code P182F 2014 GMC Sierra - Internal Mode Switch 'C' Circuit High Voltage
P182F 2014 GMC Sierra Code - Internal Mode Switch 'C' Circuit High Voltage

Common Causes of P182F 2014 GMC Sierra

  1. Faulty Internal Mode Switch
  2. Damaged wiring or connectors in the 'C' circuit
  3. Issues with the vehicle's control module
  4. Corrosion or moisture in the circuit
  5. Electrical issues within the transmission system

Symptoms of P182F 2014 GMC Sierra

  1. Harsh or delayed shifting
  2. Reduced acceleration
  3. Poor fuel efficiency
  4. Transmission going into failsafe mode
  5. Illumination of the check engine light

How to Fix P182F 2014 GMC Sierra

  1. Begin by conducting a thorough diagnostic scan to confirm the P182F code and identify the specific cause of the high voltage in the IMS 'C' circuit.
  2. Inspect the wiring and connectors in the circuit for any damage, corrosion, or loose connections. Repair or replace as necessary.
  3. Test the Internal Mode Switch to determine if it is functioning correctly. Replace the IMS if it is found to be faulty.
  4. Clear the DTC and reset the vehicle's control module to see if the issue has been resolved.
  5. Test drive the vehicle to ensure that the transmission is operating smoothly and that the code does not reappear.

Cost to Fix P182F 2014 GMC Sierra

The typical repair costs for addressing the P182F code on a 2014 GMC Sierra can vary depending on the specific cause of the issue. In general, the cost of parts for replacing the Internal Mode Switch or repairing wiring/connectors can range from $100 to $300. Labor costs at auto repair shops typically range from $80 to $150 per hour, with the total repair time varying based on the complexity of the issue. Therefore, the total cost for resolving this problem could range from $200 to $600 or more, depending on the extent of the repairs needed. It is recommended to obtain quotes from local auto repair shops to get a more accurate estimate based on your location and vehicle specifics.

Need more information about the P182F 2014 GMC Sierra code?

Need more information on how to fix the P182F 2014 GMC Sierra code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the P182F 2014 GMC Sierra 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 P182F 2014 GMC Sierra Code

1. What does the OBDII code P182F mean on a 2014 GMC Sierra?

P182F indicates an issue with the Internal Mode Switch (IMS) 'C' Circuit, specifically that it is detecting a high voltage condition.

2. What are the common symptoms of code P182F on a 2014 GMC Sierra?

Symptoms may include erratic shifting, the transmission stuck in one gear, illuminated check engine light, or reduced overall vehicle performance.

3. What causes the P182F code to appear on a GMC Sierra?

Common causes include damaged wiring or connectors in the IMS circuit, a faulty Internal Mode Switch, or issues with the transmission control module (TCM).

4. Can I still drive my 2014 GMC Sierra with code P182F?

While the vehicle may be drivable, continued operation can lead to further transmission damage or unsafe driving conditions. It’s best to address the issue promptly.

5. How do I diagnose the P182F code on a GMC Sierra?

Start by inspecting the wiring and connectors for damage, check for corrosion on the IMS circuit, and test the Internal Mode Switch for proper function using a multimeter or diagnostic tool.

6. What is the Internal Mode Switch (IMS) in a GMC Sierra?

The IMS monitors the gear selection and sends corresponding signals to the transmission control module (TCM) to facilitate proper shifting.

7. How can I fix the P182F code on my 2014 GMC Sierra?

Repairs may involve replacing damaged wiring, cleaning corroded connectors, replacing the Internal Mode Switch, or reprogramming the TCM if necessary.

8. How much does it cost to repair the P182F code on a GMC Sierra?

Repair costs can vary but typically range from $150 to $400, depending on whether the issue is with wiring, the IMS, or the TCM.

9. Can a bad battery cause the P182F code in a GMC Sierra?

A weak or failing battery can occasionally contribute to electrical faults, but it's not a common cause of this specific code. Checking the battery and charging system may still be helpful.

10. Do I need to clear the P182F code after repairs on my GMC Sierra?

Yes, after completing repairs, use an OBDII scanner to clear the code and verify that it does not return during a test drive.

Discuss the causes and fixes for P182F 2014 GMC Sierra OBDII Code

Submit a New Comment

Code P182F 2014 GMC Sierra comments

No comments found for this page.