P158A GMC Code - Cruise Control Calibration Incorrect
Quick Answer
The type of cruise control system the vehicle has is programmed into the Body Control Module (BCM) and the Engine Control Module (ECM). Common causes include Reprogram Body Control Module (BCM), Reprogram Engine Control Module (ECM). 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
- P158A GMC indicates Cruise Control Calibration Incorrect.
- Common causes
- Common causes include Reprogram Body Control Module (BCM), Reprogram Engine Control Module (ECM).
- 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 P158A GMC Description
What are the Possible Causes of the DTC P158A GMC?
- Reprogram Body Control Module (BCM)
- Reprogram Engine Control Module (ECM)
How to Fix the DTC P158A GMC?
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 P158A GMC 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 P158A GMC code?
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Need Help with the Code?
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Information for Specific GMC Models
- P158A 2014 GMC Sierra — Cruise Control Calibration Incorrect
- P158A 2015 GMC Sierra — Cruise Control Calibration Incorrect
- P158A 2016 GMC Sierra — Cruise Control Calibration Incorrect
- P158A 2017 GMC Sierra — Cruise Control Calibration Incorrect
- P158A 2018 GMC Sierra — Cruise Control Calibration Incorrect
Frequently Asked Questions about P158A GMC Code
1. What are the common symptoms of OBDII code P158A GMC (Cruise Control Calibration Incorrect)?
The common symptoms include the cruise control not functioning properly, the vehicle not maintaining a set speed, and a dashboard warning light indicating an issue.
2. What are the potential causes of OBDII code P158A GMC?
Possible causes of this code include a malfunctioning cruise control module, faulty speed sensors, issues with the throttle position sensor, or a wiring problem in the cruise control system.
3. How can I diagnose the cause of OBDII code P158A GMC?
Diagnosing this code typically involves conducting a thorough inspection of the cruise control system components, checking for loose or damaged wiring, testing the speed sensors, and using a diagnostic scanner to retrieve specific error codes.
4. What are some repair tips for addressing OBDII code P158A GMC?
Repair tips may include resetting the cruise control module, checking and replacing any faulty speed sensors, ensuring proper calibration of the throttle position sensor, and repairing or replacing damaged wiring in the cruise control system.
5. Can OBDII code P158A GMC be fixed without professional help?
Some basic troubleshooting steps, such as checking for loose connections or resetting the cruise control module, can be attempted without professional help. However, if the issue persists, it is recommended to consult a qualified mechanic for a thorough diagnosis and repair.
6. Is it safe to continue driving with OBDII code P158A GMC triggered?
While the vehicle may still be drivable with this code triggered, it is not advisable to rely on the cruise control function until the issue is addressed. Driving without functioning cruise control should not pose a safety risk, but it may affect driver comfort and convenience.
7. How much does it typically cost to repair OBDII code P158A GMC?
The cost of repairing this code can vary depending on the underlying cause of the issue, the extent of repairs needed, and labor rates in your area. Simple fixes like resetting the module may be inexpensive, while replacing components or addressing wiring problems can be more costly.
8. Can a DIY enthusiast fix OBDII code P158A GMC at home?
DIY enthusiasts with automotive repair experience and the necessary tools may be able to address this code at home. However, troubleshooting complex electrical issues or calibrating sensors may require specialized equipment and expertise, so professional help is recommended if needed.
9. How long does it take to repair OBDII code P158A GMC?
The repair time for this code can vary depending on the exact cause of the issue and the complexity of the repairs needed. Simple fixes may take a few hours, while more extensive diagnostics and repairs could require a day or more to complete.
10. Will fixing OBDII code P158A GMC improve fuel efficiency?
While addressing this specific code may not directly impact fuel efficiency, ensuring that the cruise control system is functioning properly can help maintain consistent speeds and optimize fuel consumption during highway driving.
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