P155B 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 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 Description
What are the Possible Causes of the DTC P155B?
- 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?
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 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.
Need more information about the P155B code?
Need more information on how to fix the P155B code? Get Access to Factory Service Manuals
Need Help with the Code?
Get the P155B code diagnosed by a professional: Find a repair shop in your area
Information for Specific Makes
- P155B Buick — Cruise Control Set/Coast Switch 2 Circuit
- P155B Cadillac — Cruise Control Set/Coast Switch 2 Circuit
- P155B Chevrolet — Cruise Control Set/Coast Switch 2 Circuit
- P155B GMC — Cruise Control Set/Coast Switch 2 Circuit
Frequently Asked Questions about P155B Code
1. What are the common symptoms of OBDII code P155B (Cruise Control Set/Coast Switch 2 Circuit)?
The common symptoms include inoperative cruise control, illuminated check engine light, and potential issues with the vehicle's speed control system.
2. What are the possible causes of OBDII code P155B?
Possible causes of code P155B include a faulty cruise control switch, damaged wiring or connectors in the cruise control system, or a malfunctioning cruise control module.
3. How can I diagnose the OBDII code P155B?
Diagnosing code P155B involves using a diagnostic scanner to retrieve the trouble codes, inspecting the cruise control system components for any visible damage, and testing the cruise control switch for proper functionality.
4. Can I still drive my vehicle with OBDII code P155B present?
It is generally safe to drive the vehicle with code P155B present, but you may experience issues with the cruise control system. It is advisable to have the issue diagnosed and repaired as soon as possible.
5. How do I repair OBDII code P155B?
Repairing code P155B may involve replacing the faulty cruise control switch, repairing damaged wiring or connectors, or reprogramming the cruise control module. It is recommended to follow the repair procedures outlined in the vehicle's service manual.
6. Can a DIY enthusiast fix OBDII code P155B at home?
Depending on their skill level and access to tools, a DIY enthusiast may be able to fix code P155B at home by following the diagnostic and repair procedures outlined in the service manual. However, some repairs may require professional assistance.
7. Are there any preventative maintenance tips to avoid OBDII code P155B?
Regularly inspecting the cruise control system components for damage, ensuring proper wiring connections, and addressing any cruise control issues promptly can help prevent code P155B from occurring.
8. Is OBDII code P155B specific to certain vehicle makes and models?
Code P155B may be specific to certain vehicle makes and models that are equipped with cruise control systems. It is important to consult the vehicle's service manual or a diagnostic tool to confirm the specific meaning of the code for a particular vehicle.
9. Can a malfunctioning cruise control system cause code P155B to appear?
Yes, a malfunctioning cruise control system, such as a faulty cruise control switch or module, can trigger OBDII code P155B. It is essential to address any cruise control system issues to prevent the code from reoccurring.
10. How long does it typically take to repair OBDII code P155B?
The repair time for code P155B can vary depending on the underlying cause and the complexity of the repair. Simple fixes like replacing a cruise control switch may take a few hours, while more involved repairs could take longer and may require professional assistance.
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