AutoCodes – GMC – P0568 GMC

P0568 GMC Code - Cruise Control Set Switch 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
P0568 GMC indicates Cruise Control Set Switch 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 1,646
How popular is this code, among other codes? Low
Table of contents Created and updated by William Orellana on Mar 25, 2024
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Code P0568 GMC 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. The BCM detects an invalid voltage signal on the cruise control switch signal circuit for greater than 2 seconds and sends a serial data message to the ECM. The ECM sets the Diagnostic Trouble Code (DTC) when the message is received.
OBDII Code P0568 GMC - Cruise Control Set Switch Circuit - AutoCodes.com
P0568 GMC Code - Cruise Control Set Switch Circuit

What are the Possible Causes of the DTC P0568 GMC?

  • 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 P0568 GMC?

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 P0568 GMC 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 P0568 GMC code?

Need more information on how to fix the P0568 GMC code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the P0568 GMC code diagnosed by a professional: Find a repair shop in your area

Information for Specific GMC Models

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 P0568 GMC Code

1. What are the common symptoms of OBDII code P0568 in a GMC vehicle?

- Common symptoms include the cruise control system not working properly, the cruise control light staying on, and the vehicle not being able to maintain a set speed.

2. What does the OBDII code P0568 GMC indicate?

- This code indicates a problem with the cruise control set switch circuit.

3. What are the possible causes of OBDII code P0568 in a GMC vehicle?

- Possible causes include a faulty cruise control set switch, damaged wiring or connectors in the cruise control circuit, or a problem with the cruise control module.

4. How can I diagnose the cause of OBDII code P0568 in my GMC vehicle?

- To diagnose this code, you can start by checking the cruise control set switch for proper operation, inspecting the wiring and connectors for any damage, and using a diagnostic scanner to read the code and check for any additional related codes.

5. Can I still drive my GMC vehicle with OBDII code P0568 present?

- It is generally safe to drive the vehicle with this code, but you may experience issues with the cruise control system. It is recommended to have the issue diagnosed and repaired as soon as possible.

6. How can I repair OBDII code P0568 in my GMC vehicle?

- Repairing this code may involve replacing the cruise control set switch, repairing any damaged wiring or connectors, or addressing any issues with the cruise control module. It is recommended to consult a professional mechanic for proper diagnosis and repair.

7. Is it possible to reset OBDII code P0568 in a GMC vehicle without repairing the issue?

- While you can clear the code with a diagnostic scanner, it is not recommended to do so without addressing the underlying problem. The code is likely to return if the issue is not fixed.

8. Can a DIY enthusiast fix OBDII code P0568 in a GMC vehicle?

- Depending on your experience and tools, you may be able to fix this issue yourself by inspecting the cruise control set switch, wiring, and connectors. However, for proper diagnosis and repair, it is best to seek assistance from a professional mechanic.

9. Will OBDII code P0568 GMC cause my vehicle to fail an emissions test?

- This code is not directly related to emissions, so it should not cause your vehicle to fail an emissions test. However, it is still important to address and repair the issue to ensure your vehicle is functioning properly.

10. How long does it typically take to repair OBDII code P0568 in a GMC vehicle?

- The repair time can vary depending on the specific cause of the code and the extent of the issue. Simple repairs like replacing the cruise control set switch may take less time, while more complex issues may require more time for diagnosis and repair.

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