P056C 2014 GMC Sierra Code - Cruise Control Cancel Switch Circuit
Quick Answer
The diagnostic trouble code P056C for a 2014 GMC Sierra indicates a problem with the Cruise Control Cancel Switch Circuit. Common causes include Faulty cruise control cancel switch: The most common cause of this code is a malfunctioning cruise control cancel switch, Wiring issues: Damaged or corroded wiring in the cruise control cancel switch circuit can also trigger this code, Faulty PCM: A malfunctioning powertrain control module (PCM) can incorrectly detect issues with the cruise control cancel switch 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
- P056C 2014 GMC Sierra indicates Cruise Control Cancel Switch Circuit.
- Common causes
- Common causes include Faulty cruise control cancel switch: The most common cause of this code is a malfunctioning cruise control cancel switch, Wiring issues: Damaged or corroded wiring in the cruise control cancel switch circuit can also trigger this code, Faulty PCM: A malfunctioning powertrain control module (PCM) can incorrectly detect issues with the cruise control cancel switch 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.
Fix Your Car Smarter
Try the New AutoCodes App!
Get complete OBDII diagnostics, repair solutions, and cost estimates, plus AI chat support on demand.
Code P056C 2014 GMC Sierra Description
The diagnostic trouble code P056C for a 2014 GMC Sierra indicates a problem with the Cruise Control Cancel Switch Circuit. This code is set when the powertrain control module (PCM) detects a malfunction in the circuit that controls the cruise control cancel switch. The cruise control cancel switch is a crucial component that allows the driver to deactivate the cruise control system quickly. When this circuit malfunctions, it can lead to the cruise control system not being able to cancel properly, potentially causing safety concerns.
Common Causes of P056C 2014 GMC Sierra
- Faulty cruise control cancel switch: The most common cause of this code is a malfunctioning cruise control cancel switch.
- Wiring issues: Damaged or corroded wiring in the cruise control cancel switch circuit can also trigger this code.
- Faulty PCM: A malfunctioning powertrain control module (PCM) can incorrectly detect issues with the cruise control cancel switch circuit.
- Loose connections: Loose or poor connections in the circuit can disrupt the signal between the cancel switch and the PCM.
Symptoms of P056C 2014 GMC Sierra
- Inability to cancel cruise control: One of the most common symptoms associated with this code is the inability to cancel the cruise control system using the cancel switch.
- Cruise control system not engaging: The cruise control system may fail to engage at all, even when the switch is activated.
- Illuminated warning lights: The check engine light or cruise control warning light may illuminate on the dashboard.
- Erratic cruise control behavior: The cruise control system may behave erratically, such as accelerating or decelerating unexpectedly.
How to Fix P056C 2014 GMC Sierra
- Diagnose the issue: Use a diagnostic scanner to retrieve the trouble code and pinpoint the exact cause of the problem.
- Inspect the cruise control cancel switch: Check the condition of the cancel switch for any visible damage or malfunction.
- Check wiring and connections: Inspect the wiring harness and connections for any signs of damage, corrosion, or loose connections.
- Replace faulty components: Replace the faulty cruise control cancel switch or repair any damaged wiring as needed.
- Clear the trouble code: After completing the repair, clear the trouble code from the PCM memory to reset the system and ensure the issue has been resolved.
Cost to Fix P056C 2014 GMC Sierra
The cost of repairing the Cruise Control Cancel Switch Circuit issue can vary depending on the extent of the problem and the specific components that need to be replaced. In general, the cost of parts for this repair can range from $50 to $150, while labor costs can range from $100 to $200. Overall, the total repair cost for this issue is typically between $150 and $350. It's important to note that labor rates at auto repair shops can vary, so it's advisable to check with local shops for a more accurate estimate based on your location and vehicle.
Need more information about the P056C 2014 GMC Sierra code?
Need more information on how to fix the P056C 2014 GMC Sierra code? Get Access to Factory Service Manuals
Need Help with the Code?
Get the P056C 2014 GMC Sierra code diagnosed by a professional: Find a repair shop in your area
Frequently Asked Questions about P056C 2014 GMC Sierra Code
1. What does the OBDII code P056C mean on a 2014 GMC Sierra?
P056C indicates an issue in the Cruise Control Cancel Switch Circuit, which may affect the vehicle's cruise control functionality.
2. What are the common symptoms of code P056C in a 2014 GMC Sierra?
Symptoms may include the cruise control not working, the cruise control canceling unexpectedly, or the check engine light being illuminated.
3. What causes the P056C code to appear on a 2014 GMC Sierra?
Common causes include a faulty cruise control cancel switch, damaged wiring or connectors in the circuit, or a malfunctioning brake pedal position sensor.
4. Can I still drive my 2014 GMC Sierra with the P056C code?
Yes, you can typically drive the vehicle, but the cruise control system may not function properly, which could affect long-distance driving convenience.
5. How do I diagnose the P056C code on a 2014 GMC Sierra?
Diagnosis involves inspecting the cruise control cancel switch, checking the wiring and connectors for damage, and testing the circuit with a multimeter.
6. How can I fix the P056C code on my 2014 GMC Sierra?
Repairs may include replacing a faulty cruise control cancel switch, repairing or replacing damaged wiring, or recalibrating the brake pedal position sensor.
7. Is the P056C code related to the brake system on a 2014 GMC Sierra?
Yes, the cruise control cancel switch is often linked to the brake pedal, as pressing the brake cancels cruise control.
8. How much does it cost to fix the P056C code on a 2014 GMC Sierra?
Repair costs can vary but typically range from $100 to $300, depending on whether just the switch or additional wiring repairs are needed.
9. Can a faulty brake light switch cause the P056C code in a 2014 GMC Sierra?
Yes, a malfunctioning brake light switch can sometimes trigger this code, as it is part of the circuit that cancels cruise control.
10. Will resetting the check engine light fix the P056C code on a 2014 GMC Sierra?
Resetting the light may temporarily clear the code, but the underlying issue must be resolved to prevent the code from returning.
Discuss the causes and fixes for P056C 2014 GMC Sierra OBDII Code
Code P056C 2014 GMC Sierra comments
No comments found for this page.
Fix Your Car Smarter
Try the New AutoCodes App!
Get complete OBDII diagnostics, repair solutions, and cost estimates, plus AI chat support on demand.