P155C 2018 Chevrolet Silverado Code - Cruise Control Resume/Acceleration Switch 2 Circuit
Quick Answer
The P155C diagnostic trouble code (DTC) for a 2018 Chevrolet Silverado refers to an issue with the Cruise Control Resume/Acceleration Switch 2 Circuit. Common causes include Faulty cruise control resume/acceleration switch, Wiring issues in the cruise control system, 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 2018 Chevrolet Silverado indicates Cruise Control Resume/Acceleration Switch 2 Circuit.
- Common causes
- Common causes include Faulty cruise control resume/acceleration switch, Wiring issues in the cruise control system, 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 2018 Chevrolet Silverado Description
The P155C diagnostic trouble code (DTC) for a 2018 Chevrolet Silverado refers to an issue with the Cruise Control Resume/Acceleration Switch 2 Circuit. This code indicates that there is a problem with 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 keep their foot on the accelerator pedal. When this code is triggered, it can lead to issues with the cruise control system's ability to resume or accelerate the vehicle's speed as intended.
Common Causes of P155C 2018 Chevrolet Silverado
- Faulty cruise control resume/acceleration switch
- Wiring issues in the cruise control system
- Defective cruise control module
- ECM communication problems
- Electrical issues such as blown fuses or loose connections
Symptoms of P155C 2018 Chevrolet Silverado
- Inoperative cruise control system
- Inability to resume or accelerate speed using cruise control
- Illumination of the check engine light
- Erratic behavior of the cruise control system
- Decreased fuel efficiency on highway drives
How to Fix P155C 2018 Chevrolet Silverado
- Begin by diagnosing the specific cause of the P155C code using a diagnostic scanner to pinpoint the exact issue within the cruise control system.
- Inspect the cruise control resume/acceleration switch 2 circuit for any visible damage or corrosion. Replace the switch if necessary.
- Check the wiring harness for any frayed wires or loose connections. Repair or replace damaged wiring as needed.
- Test the cruise control module and ECM for proper functioning. Replace any faulty components.
- Clear the DTC and test the cruise control system to ensure that the issue has been resolved.
Cost to Fix P155C 2018 Chevrolet Silverado
The typical repair costs for addressing a P155C code on a 2018 Chevrolet Silverado can vary depending on the specific cause of the issue. In general, the cost of parts such as a cruise control switch or module can range from $50 to $200, while labor costs can add an additional $100 to $300 to the total repair bill. Overall, the total cost of repairing a cruise control resume/acceleration switch 2 circuit issue is estimated to be between $150 and $500. It's important to note that these costs are approximate and can vary based on factors such as location, vehicle make and model, and labor rates at auto repair shops. It's recommended to consult with a professional mechanic for a more accurate cost estimate based on your specific situation.
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Frequently Asked Questions about P155C 2018 Chevrolet Silverado Code
What does the OBDII code P155C mean on a 2018 Chevrolet Silverado?
The P155C code indicates a problem with the Cruise Control Resume/Acceleration Switch 2 Circuit, typically related to the cruise control system's electrical components.
What are the common symptoms of code P155C in a 2018 Chevrolet Silverado?
Symptoms may include the cruise control failing to engage or resume, an illuminated check engine light, and potential loss of certain cruise control functions.
What causes the P155C code to trigger?
Common causes include a faulty cruise control switch, wiring or connector issues in the switch circuit, or a malfunctioning clock spring in the steering wheel.
Can I still drive my 2018 Chevrolet Silverado with the P155C code active?
Yes, you can still drive the vehicle, but cruise control functionality may be compromised. It’s recommended to address the issue to restore full functionality.
How do I diagnose the P155C code on a Chevrolet Silverado?
Start by checking for loose or damaged wiring in the cruise control circuit, inspect the switch for proper operation, and use a diagnostic scan tool to confirm the circuit's performance.
What tools are needed to repair the P155C code?
You may need a multimeter to test the circuit, a scan tool for diagnostics, and basic hand tools to access and potentially replace the cruise control switch.
Is the P155C code likely to clear itself?
No, the code will not clear itself. The underlying issue must be repaired, and the code may need to be cleared with a scan tool after the repair.
How much does it cost to fix the P155C code on a 2018 Chevrolet Silverado?
Repair costs vary but may range from $50 to $200, depending on whether the issue is wiring-related or requires a new cruise control switch.
Could a faulty clock spring cause the P155C code?
Yes, a defective clock spring in the steering wheel can disrupt cruise control switch signals and potentially trigger this code.
Can a dead battery trigger the P155C code?
A dead or low battery is unlikely to cause this code directly, but electrical issues following a battery replacement might affect the cruise control circuit.
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