P162B 2017 GMC Sierra Code - Remote Vehicle Speed Limiting Signal Message Counter Incorrect
Quick Answer
When a remote slow-down request is sent from OnStar, the vehicle communication interface module sends a serial data message to the Engine Control Module (ECM) indicating that reduced vehicle speed has been requested. Common causes include Faulty Vehicle Communication Interface Module, Vehicle Communication Interface Module harness is open or shorted, Vehicle Communication Interface Module 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
- P162B 2017 GMC Sierra indicates Remote Vehicle Speed Limiting Signal Message Counter Incorrect.
- Common causes
- Common causes include Faulty Vehicle Communication Interface Module, Vehicle Communication Interface Module harness is open or shorted, Vehicle Communication Interface Module 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 P162B 2017 GMC Sierra Description
The Diagnostic Trouble Code (DTC) will be set when the VIN embedded in the slow-down request does not match the VIN stored in the ECM or the rolling code counter embedded in the slow-down request does not increment for ten consecutive messages.
What are the Possible Causes of the DTC P162B 2017 GMC Sierra?
- Faulty Vehicle Communication Interface Module
- Vehicle Communication Interface Module harness is open or shorted
- Vehicle Communication Interface Module circuit poor electrical connection
- Faulty Engine Control Module (ECM)
How to Fix the DTC P162B 2017 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 P162B 2017 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.
Need more information about the P162B 2017 GMC Sierra code?
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Frequently Asked Questions about P162B 2017 GMC Sierra Code
1. What are the common symptoms of OBDII code P162B in a 2017 GMC Sierra?
- Common symptoms include the check engine light coming on, reduced engine power, and potential issues with vehicle speed limiting features.
2. What does the OBDII code P162B "Remote Vehicle Speed Limiting Signal Message Counter Incorrect" mean for a 2017 GMC Sierra?
- This code indicates that the vehicle's computer has detected an incorrect signal message counter related to the remote vehicle speed limiting system.
3. What are the possible causes of OBDII code P162B in a 2017 GMC Sierra?
- Possible causes may include a faulty remote vehicle speed limiting module, wiring issues, communication errors, or software glitches within the vehicle's system.
4. How can I diagnose OBDII code P162B in my 2017 GMC Sierra?
- Diagnosing this code typically involves using a diagnostic scanner to retrieve the specific fault codes, checking the connections and wiring related to the remote vehicle speed limiting module, and performing a thorough system inspection.
5. Is it safe to continue driving with OBDII code P162B present in a 2017 GMC Sierra?
- It is not recommended to continue driving with this code present, as it may lead to performance issues and potentially affect the vehicle's speed limiting functionality.
6. Can I reset OBDII code P162B in my 2017 GMC Sierra without fixing the underlying issue?
- While you can clear the code with a diagnostic tool, it is crucial to address the root cause of the problem to prevent it from recurring and potentially causing further issues.
7. How can I repair OBDII code P162B in my 2017 GMC Sierra?
- Repairing this code may involve replacing the remote vehicle speed limiting module, addressing any wiring or connection issues, and ensuring proper communication between system components.
8. Are there any specific maintenance tips to prevent OBDII code P162B in a 2017 GMC Sierra?
- Regularly inspecting the vehicle's wiring, keeping the remote vehicle speed limiting system components clean and free of debris, and following the manufacturer's maintenance schedule can help prevent this code from appearing.
9. Can a DIY enthusiast fix OBDII code P162B in a 2017 GMC Sierra?
- Depending on your skill level and access to tools, some DIY enthusiasts may be able to address simpler causes of this code, such as checking and repairing wiring issues. However, more complex issues may require professional assistance.
10. How much can I expect to pay to repair OBDII code P162B in a 2017 GMC Sierra?
- Repair costs for this code can vary depending on the specific cause of the issue, but it is advisable to budget for diagnostic fees, parts replacement costs, and potential labor charges, which could range from a few hundred to over a thousand dollars.
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