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P167F 2017 GMC Sierra Code - Battery Voltage Signal Message Counter Incorrect

Quick Answer

The P167F diagnostic trouble code (DTC) indicates that the battery voltage signal message counter is incorrect within the vehicle's electronic control unit (ECU) communication network. Common causes include Faulty Battery: A weak or failing battery may not provide accurate voltage readings, Corroded Connections: Corrosion at battery terminals or wiring harness connections can disrupt voltage signals, Defective Voltage Regulator: A malfunctioning voltage regulator may cause erratic voltage output. 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
P167F 2017 GMC Sierra indicates Battery Voltage Signal Message Counter Incorrect.
Common causes
Common causes include Faulty Battery: A weak or failing battery may not provide accurate voltage readings, Corroded Connections: Corrosion at battery terminals or wiring harness connections can disrupt voltage signals, Defective Voltage Regulator: A malfunctioning voltage regulator may cause erratic voltage output.
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.
What is this?
Table of contents Created and updated by William Orellana on Oct 03, 2024
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Code P167F 2017 GMC Sierra Description

The P167F diagnostic trouble code (DTC) indicates that the battery voltage signal message counter is incorrect within the vehicle's electronic control unit (ECU) communication network. This code typically arises when the ECU detects an inconsistency or discrepancy in the battery voltage readings being communicated between various modules, such as the Engine Control Module (ECM), Transmission Control Module (TCM), and other body control modules.

OBDII Code P167F 2017 GMC Sierra - Battery Voltage Signal Message Counter Incorrect
P167F 2017 GMC Sierra Code - Battery Voltage Signal Message Counter Incorrect

Common Causes of P167F 2017 GMC Sierra

  1. Faulty Battery: A weak or failing battery may not provide accurate voltage readings.
  2. Corroded Connections: Corrosion at battery terminals or wiring harness connections can disrupt voltage signals.
  3. Defective Voltage Regulator: A malfunctioning voltage regulator may cause erratic voltage output.
  4. Faulty Sensors: Malfunctioning battery voltage sensors can send incorrect readings to the ECU.
  5. Wiring Issues: Damaged or frayed wiring in the electrical system can lead to signal inconsistencies.

Symptoms of P167F 2017 GMC Sierra

  1. Erratic Electrical Behavior: Flickering dashboard lights or inconsistent operation of electrical accessories.
  2. Starting Issues: Difficulty starting the vehicle or a slow cranking sound when turning the ignition.
  3. Warning Lights: Activation of warning lights on the dashboard, particularly the battery or check engine light.
  4. Reduced Performance: Noticeable decrease in engine power or responsiveness during acceleration.
  5. Battery Drain: Unexplained battery drain or frequent need for jump-starts.

How to Fix P167F 2017 GMC Sierra

  1. Inspect Battery and Connections: Begin by checking the battery condition and ensuring all terminals are clean and securely connected.
  2. Test Voltage Output: Use a multimeter to measure the battery voltage and ensure it is within the manufacturer's specifications.
  3. Examine Wiring: Inspect the wiring harness for any signs of damage, fraying, or corrosion that could affect signal transmission.
  4. Replace Faulty Components: If any components, such as the battery, voltage regulator, or sensors, are found to be defective, replace them as necessary.
  5. Clear Codes and Test Drive: After repairs, clear the DTCs using a diagnostic scanner and perform a test drive to ensure the issue is resolved and the code does not reappear.

Cost to Fix P167F 2017 GMC Sierra

The typical repair costs for addressing the P167F code can vary widely based on the specific diagnosis and repairs needed. A rough estimate for parts and labor may range from $150 to $600. For example, replacing a battery might cost around $100 to $200, while more extensive electrical repairs could exceed $500.

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About the author: William Orellana is a Master Mechanic and Mechanical Engineer with over 30 years of experience diagnosing and repairing vehicles. Learn more about his background.

Frequently Asked Questions about P167F 2017 GMC Sierra Code

1. What does the OBDII code P167F mean on a 2017 GMC Sierra?

P167F indicates that the Battery Voltage Signal Message Counter is incorrect, meaning there’s an issue with the communication or monitoring of the battery voltage by the vehicle's control module.

2. What are the symptoms of code P167F on a 2017 GMC Sierra?

Common symptoms include a check engine light, erratic charging system behavior, potential battery drain, or difficulty starting the vehicle.

3. What causes the P167F code to appear on a GMC Sierra?

The most common causes include a faulty battery sensor, poor electrical connections, wiring issues, or a malfunctioning body control module (BCM).

4. Can a weak or failing battery cause P167F?

Yes, a weak or failing battery can cause voltage monitoring irregularities, potentially triggering the P167F code.

5. How can I diagnose the P167F code on my GMC Sierra?

Start by inspecting the battery terminals and wiring for corrosion or damage. Use a scan tool to monitor the battery voltage signal and check for anomalies in the communication between the BCM and other modules.

6. Can a bad alternator trigger the P167F code?

While not the most common cause, a failing alternator could affect the battery voltage signal and potentially contribute to the P167F code.

7. How do you fix the P167F code on a 2017 GMC Sierra?

Fixes may include cleaning or repairing battery connections, replacing a faulty battery sensor, repairing damaged wiring, or, in some cases, reprogramming or replacing the BCM.

8. Is it safe to drive with the P167F code active?

Driving with the P167F code is not recommended, as it could lead to battery drainage or charging system failure, potentially leaving you stranded.

9. Can a software update resolve the P167F code?

In some cases, a software update to the BCM or related control modules may resolve the issue if it’s caused by a communication glitch.

10. How much does it cost to repair the P167F code on a GMC Sierra?

Repair costs can vary depending on the cause, ranging from $50 for cleaning battery terminals to $500 or more for BCM replacement and programming.

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