AutoCodes – GMC – P155C 2014 GMC Sierra

P155C 2014 GMC Sierra Code - Cruise Control Resume/Acceleration Switch 2 Circuit

Quick Answer

The Cruise Control Switch is an input to the Body Control Module (BCM). Common causes include Faulty Cruise Control Switch, Cruise Control Switch harness is open or shorted, Cruise Control Switch circuit poor electrical connection. 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: P155C 2014 GMC Sierra indicates Cruise Control Resume/Acceleration Switch 2 Circuit.
Common causes: Common causes include Faulty Cruise Control Switch, Cruise Control Switch harness is open or shorted, Cruise Control Switch circuit poor electrical connection.
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.

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Code Popularity 168

How popular is this code, among other codes? Low

Repair Importance Level

Urgent (Diagnose now) (3 / 3)

Repair Difficulty Level

Advanced (Pro) (3 / 3)

What is this?

Table of contents Created and updated by William Orellana on Mar 25, 2024

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code P155C 2014 GMC Sierra Description

The Cruise Control Switch is an input to the Body Control Module (BCM). The BCM monitors the cruise control on/off, set/coast, resume/accelerate and cancel switches via the cruise control switch signal circuit in order to detect when the driver has requested to perform a cruise control function. The BCM detects a specific voltage signal on the cruise control switch signal circuit when a switch is applied. The Engine Control Module (ECM) receives the requested cruise control switch function from the BCM via a serial data message. The BCM monitors the cruise control switch. The BCM sets the OBDII code when the cruise control switch is not to factory specifications.

OBDII Code P155C 2014 GMC Sierra - Cruise Control Resume/Acceleration Switch 2 Circuit - AutoCodes.com — P155C 2014 GMC Sierra Code - Cruise Control Resume/Acceleration Switch 2 Circuit

What does this mean?

What are the Possible Causes of the DTC P155C 2014 GMC Sierra?

Faulty Cruise Control Switch
Cruise Control Switch harness is open or shorted
Cruise Control Switch circuit poor electrical connection
Faulty Body Control Module (BCM)

How to Fix the DTC P155C 2014 GMC Sierra?

Review the 'Possible Causes' above and visually examine the corresponding wiring harness and connectors. Check for damaged components and inspect connector pins for signs of being broken, bent, pushed out, or corroded.

What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the P155C 2014 GMC Sierra code, it typically requires 1.0 hour of labor. Rates vary by location, vehicle, and shop. Many shops charge between $80–$150 per hour; dealerships and metro areas may be higher, independents may be lower.

Need more information about the P155C 2014 GMC Sierra code?

Need more information on how to fix the P155C 2014 GMC Sierra code? Get Access to Factory Service Manuals

Need Help with the Code?

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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 P155C 2014 GMC Sierra Code

1. What does OBDII code P155C on a 2014 GMC Sierra mean?

- This code indicates a problem with the Cruise Control Resume/Acceleration Switch 2 Circuit.

2. What are the common symptoms of OBDII code P155C in a 2014 GMC Sierra?

- Common symptoms may include cruise control not working, inability to resume or accelerate using cruise control, and possibly an illuminated check engine light.

3. What are the possible causes of OBDII code P155C in a 2014 GMC Sierra?

- The code P155C can be triggered by issues such as a faulty cruise control switch, damaged wiring in the cruise control system, or a malfunctioning cruise control module.

4. How can I diagnose the Cruise Control Resume/Acceleration Switch 2 Circuit issue in my 2014 GMC Sierra?

- To diagnose the problem, you may need to perform a thorough inspection of the cruise control system components, check for damaged wiring, and use a diagnostic scanner to retrieve the specific fault codes.

5. Can I still drive my 2014 GMC Sierra with OBDII code P155C present?

- It is generally safe to drive the vehicle with this code, but you may experience issues with the cruise control function. It is recommended to address the problem as soon as possible.

6. How can I repair OBDII code P155C in my 2014 GMC Sierra?

- Repairing this code may involve replacing the faulty cruise control switch, repairing damaged wiring, or addressing any other underlying issues identified during diagnosis.

7. Is it possible to reset the OBDII code P155C in a 2014 GMC Sierra without repairs?

- While clearing the code may temporarily turn off the check engine light, it is crucial to address the root cause of the issue to prevent it from reoccurring.

8. Can a DIY enthusiast fix OBDII code P155C in a 2014 GMC Sierra?

- Depending on your skills and experience, you may be able to diagnose and repair simple issues related to this code. However, complex electrical problems may require professional assistance.

9. How much does it cost to repair OBDII code P155C in a 2014 GMC Sierra?

- The cost of repair can vary based on the specific cause of the issue, the required parts, and labor costs. It is advisable to obtain quotes from reputable mechanics or dealerships.

10. Will fixing OBDII code P155C improve the overall performance of my 2014 GMC Sierra?

- Resolving the Cruise Control Resume/Acceleration Switch 2 Circuit issue should restore the proper functioning of the cruise control system, enhancing convenience and potentially improving driving experience.