P155B 2016 GMC Sierra Code - Cruise Control Set/Coast Switch 2 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
- P155B 2016 GMC Sierra indicates Cruise Control Set/Coast Switch 2 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 P155B 2016 GMC Sierra Description
What are the Possible Causes of the DTC P155B 2016 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 P155B 2016 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 P155B 2016 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 P155B 2016 GMC Sierra Code
1. What does the OBDII code P155B mean on a 2016 GMC Sierra?
The P155B code indicates an issue with the Cruise Control Set/Coast Switch 2 Circuit, which is part of the cruise control system.
2. What are the common symptoms of the P155B code in a GMC Sierra?
Symptoms may include the cruise control not engaging, the cruise control shutting off unexpectedly, or the cruise control light not functioning.
3. What causes the P155B code to appear in a 2016 GMC Sierra?
Potential causes include a faulty Set/Coast switch, damaged wiring or connectors in the circuit, or a malfunctioning cruise control module.
4. Can I still drive my GMC Sierra with the P155B code?
Yes, you can drive the vehicle, but the cruise control system may not work properly, which could affect driving convenience.
5. How is the P155B code diagnosed?
A technician will use a scan tool to confirm the code, inspect the Cruise Control Set/Coast Switch 2 Circuit wiring and connectors, and test the functionality of the switch.
6. How do I fix the P155B code on my GMC Sierra?
Repairs may include replacing the Cruise Control Set/Coast switch, repairing damaged wiring or connectors, or reprogramming or replacing the cruise control module.
7. How much does it cost to repair the P155B code on a 2016 GMC Sierra?
Repair costs can vary but typically range from $100 to $300 depending on the exact issue and labor rates.
8. Can a P155B code be caused by a blown fuse?
While uncommon, a blown fuse affecting the cruise control circuit could potentially contribute to this code.
9. Can I clear the P155B code without fixing the issue?
You can clear the code with an OBDII scanner, but it will likely return if the underlying issue is not resolved.
10. Is the P155B code related to other cruise control issues?
Yes, the P155B code specifically relates to the Set/Coast switch circuit, but other cruise control problems might trigger related codes.
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