P162B 2016 GMC Sierra Code - Remote Vehicle Speed Limiting Signal Message Counter Incorrect
Quick Answer
The P162B diagnostic trouble code (DTC) for a 2016 GMC Sierra indicates that the remote vehicle speed limiting signal message counter is incorrect. Common causes include Faulty speed limiting device, Wiring issues between the speed limiting device and control module, Malfunctioning 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
- P162B 2016 GMC Sierra indicates Remote Vehicle Speed Limiting Signal Message Counter Incorrect.
- Common causes
- Common causes include Faulty speed limiting device, Wiring issues between the speed limiting device and control module, Malfunctioning 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 P162B 2016 GMC Sierra Description
The P162B diagnostic trouble code (DTC) for a 2016 GMC Sierra indicates that the remote vehicle speed limiting signal message counter is incorrect. This code typically means that there is a discrepancy between the expected number of speed limiting signal messages being sent and the actual number being received by the vehicle's control module. The remote vehicle speed limiting system is designed to send signals to the vehicle's control module to limit the vehicle's speed under certain conditions, such as when a vehicle is being operated by a valet or a teen driver.
Common Causes of P162B 2016 GMC Sierra
- Faulty speed limiting device
- Wiring issues between the speed limiting device and control module
- Malfunctioning control module
- Software glitches in the vehicle's system
- Electrical interference affecting signal transmission
Symptoms of P162B 2016 GMC Sierra
- Vehicle speed limited unexpectedly
- Inconsistent response to speed limiting signals
- Warning lights on the dashboard related to speed limiting
- Loss of control over speed limiting settings
- Reduced engine power
How to Fix P162B 2016 GMC Sierra
- Diagnose the issue by checking the speed limiting device, wiring, and control module for any faults.
- Repair or replace any faulty components, such as sensors or wiring.
- Reset the control module and reprogram any necessary settings related to speed limiting.
- Test the vehicle to ensure that the speed limiting system is functioning correctly.
- Clear the DTC and verify that the code does not return.
Cost to Fix P162B 2016 GMC Sierra
The typical repair costs for addressing a P162B code on a 2016 GMC Sierra can vary depending on the specific cause of the issue and the extent of the repairs needed. In general, the cost of parts and labor for this type of repair could range from $200 to $500. However, it's important to note that diagnosis time and labor rates at auto repair shops can vary based on factors such as location, vehicle make and model, and engine type. It's advisable to check with local auto repair shops for a more accurate estimate of the repair costs.
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Frequently Asked Questions about P162B 2016 GMC Sierra Code
1. What does the OBDII code P162B mean on a 2016 GMC Sierra?
P162B indicates an issue with the Remote Vehicle Speed Limiting Signal Message Counter being incorrect, meaning the vehicle’s computer is detecting a mismatch or error in the signal related to speed limiting functions.
2. What are the common symptoms of the P162B code?
Symptoms may include the check engine light turning on, reduced engine performance, activation of a speed limiter, or issues with cruise control functionality.
3. What causes the P162B code to appear on a 2016 GMC Sierra?
The code is typically caused by faulty communication between the modules, a malfunctioning speed limiter control system, damaged wiring or connectors, or software issues in the control module.
4. Can a faulty vehicle speed sensor cause the P162B code?
While the speed sensor itself is not directly related, issues with the vehicle speed sensor could contribute to communication errors that trigger this code.
5. Is the P162B code serious?
Yes, it can be serious if it affects vehicle performance or safety systems. It should be diagnosed and repaired promptly to avoid further issues.
6. How is the P162B code diagnosed?
A technician will use a scan tool to check for related codes, inspect wiring and connectors for damage, and perform tests on the communication signals between the control modules.
7. How can I fix the P162B code on my 2016 GMC Sierra?
Repairs may involve updating module software, repairing or replacing damaged wiring, addressing faulty connectors, or replacing a malfunctioning control module.
8. Can the P162B code be triggered by a low battery?
Yes, a weak or low battery can cause communication issues between modules, potentially triggering this code.
9. Will clearing the code with a scanner fix the issue?
Clearing the code may temporarily turn off the check engine light, but the root cause must be addressed to prevent the code from returning.
10. How much does it cost to repair a P162B code on a 2016 GMC Sierra?
The cost varies depending on the root cause, but typical repairs can range from $150 to $500, including diagnostics, wiring repairs, or module updates.
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