P155C 2016 GMC Sierra Code - Cruise Control Resume/Acceleration Switch 2 Circuit
Quick Answer
The P155C diagnostic trouble code (DTC) for a 2016 GMC Sierra relates to the Cruise Control Resume/Acceleration Switch 2 Circuit. Common causes include Faulty cruise control switch, Damaged wiring or connectors in the cruise control circuit, Defective cruise 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
- P155C 2016 GMC Sierra indicates Cruise Control Resume/Acceleration Switch 2 Circuit.
- Common causes
- Common causes include Faulty cruise control switch, Damaged wiring or connectors in the cruise control circuit, Defective cruise 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.
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Code P155C 2016 GMC Sierra Description
The P155C diagnostic trouble code (DTC) for a 2016 GMC Sierra relates to the Cruise Control Resume/Acceleration Switch 2 Circuit. This code indicates that there is a malfunction in the circuit responsible for controlling the cruise control system's resume and acceleration functions. The cruise control system allows the driver to set a desired speed and maintain it without having to constantly press the accelerator pedal. When this circuit malfunctions, it can lead to issues with the cruise control system's ability to resume a previously set speed or accelerate as needed.
Common Causes of P155C 2016 GMC Sierra
- Faulty cruise control switch
- Damaged wiring or connectors in the cruise control circuit
- Defective cruise control module
- Corrosion or poor connections in the circuit
- Electrical issues such as a blown fuse related to the cruise control system
Symptoms of P155C 2016 GMC Sierra
- Inoperative cruise control system
- Inability to resume a previously set speed
- Difficulty accelerating using cruise control
- Illumination of the check engine light
How to Fix P155C 2016 GMC Sierra
- Begin by diagnosing the specific cause of the issue using a scan tool to read the DTC and pinpoint the fault.
- Inspect the cruise control switch, wiring, and connectors for any visible damage or corrosion. Replace any components that are faulty.
- Test the cruise control module to ensure it is functioning correctly. Replace if necessary.
- Clear the DTC from the vehicle's computer system and test the cruise control system to verify that the issue has been resolved.
- If the problem persists, consult a professional technician for further diagnosis and repair.
Cost to Fix P155C 2016 GMC Sierra
The typical repair costs for addressing a P155C code on a 2016 GMC Sierra can vary depending on the specific cause of the issue. In general, parts for repairing the cruise control system circuit can range from $50 to $200, while labor costs may add an additional $100 to $300. Overall, the total repair cost could fall within the range of $150 to $500. It is important to note that these estimates are approximate and actual costs may vary based on factors such as location, vehicle make and model, and labor rates at the repair facility. It is recommended to obtain quotes from local auto repair shops for a more accurate cost estimate.
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Frequently Asked Questions about P155C 2016 GMC Sierra Code
What does OBDII code P155C mean on a 2016 GMC Sierra?
Code P155C indicates an issue with the Cruise Control Resume/Acceleration Switch 2 Circuit, which is part of the cruise control system.
What are the common symptoms of code P155C in a 2016 GMC Sierra?
Symptoms may include the cruise control not working, the cruise control light not activating, or the system failing to maintain speed.
What causes the P155C code on a GMC Sierra?
Common causes include a faulty cruise control switch, damaged wiring or connectors in the switch circuit, or a malfunction in the vehicle's body control module (BCM).
Can I still drive my 2016 GMC Sierra with the P155C code?
Yes, the vehicle is typically safe to drive, but the cruise control system may be inoperative until the issue is resolved.
How do I diagnose the P155C code on my GMC Sierra?
Diagnosis involves checking the cruise control switch for proper operation, inspecting wiring and connectors for damage, and testing the circuit with a multimeter.
How can I fix the P155C code on my 2016 GMC Sierra?
Repairs may include replacing the cruise control switch, repairing damaged wiring or connectors, or reprogramming or replacing the body control module if necessary.
How much does it cost to fix the P155C code on a GMC Sierra?
Repair costs vary, but replacing the cruise control switch typically costs $100-$300, including parts and labor, depending on your location and repair facility.
Can a P155C code be triggered by a dead battery?
While unlikely, a low or dead battery can sometimes cause electrical issues that may indirectly contribute to the code. It’s best to confirm the root cause through diagnosis.
Does the P155C code require professional repair?
If you’re comfortable with basic electrical diagnostics, you can attempt the repair yourself. However, professional assistance is recommended if BCM reprogramming or advanced troubleshooting is needed.
Will clearing the P155C code with a scanner fix the problem?
Clearing the code may temporarily remove it, but if the underlying issue isn’t resolved, the code will likely return.
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