P056C 2017 GMC Sierra Code - Cruise Control Cancel 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
- P056C 2017 GMC Sierra indicates Cruise Control Cancel 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.
Code P056C 2017 GMC Sierra Description
What are the Possible Causes of the DTC P056C 2017 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 P056C 2017 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 P056C 2017 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.
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Frequently Asked Questions about P056C 2017 GMC Sierra Code
1. What does the OBDII code P056C mean on a 2017 GMC Sierra?
P056C indicates a problem with the Cruise Control Cancel Switch Circuit, which monitors the switch that deactivates cruise control when needed.
2. What are the symptoms of the P056C code on a 2017 GMC Sierra?
Common symptoms include the cruise control not functioning, the cruise control cancel feature not working, or the check engine light turning on.
3. What causes the P056C code on a 2017 GMC Sierra?
Potential causes include a faulty cruise control cancel switch, damaged wiring or connectors in the circuit, or a malfunctioning body control module (BCM).
4. Can I still drive my 2017 GMC Sierra with the P056C code?
Yes, but the cruise control system may not function properly, and ignoring the issue could lead to further electrical problems.
5. How do I diagnose the P056C code on a 2017 GMC Sierra?
Diagnosis involves checking for loose or damaged wiring, testing the cruise control cancel switch for proper operation, and using a scan tool to monitor circuit performance.
6. How do you fix the P056C code on a 2017 GMC Sierra?
Repairs may include replacing the cruise control cancel switch, repairing damaged wiring or connectors, or reprogramming the BCM if necessary.
7. How much does it cost to fix the P056C code on a 2017 GMC Sierra?
Repair costs vary but can range from $100 to $300, depending on whether just the switch or additional components need to be replaced.
8. Can a bad cruise control cancel switch trigger the P056C code?
Yes, a faulty or stuck cruise control cancel switch is a common cause of this code.
9. Will clearing the P056C code fix the problem on my 2017 GMC Sierra?
Clearing the code without addressing the underlying issue is only a temporary solution, and the code will likely return.
10. Is the P056C code common on the 2017 GMC Sierra?
While not extremely common, it can occur due to wear and tear on the cruise control system components or wiring issues.
Discuss the causes and fixes for P056C 2017 GMC Sierra OBDII Code
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