AutoCodesGMC – P16E3 GMC

P16E3 GMC Code - Battery Monitor Module Data Incompatible Diagnostic

Quick Answer

The vehicle control module monitors the system voltage, current, and internal temperature to verify they are within the normal operating range. Common causes include Faulty Battery Monitor Module, Battery Monitor Module harness is open or shorted, Battery Monitor 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
P16E3 GMC indicates Battery Monitor Module Data Incompatible Diagnostic.
Common causes
Common causes include Faulty Battery Monitor Module, Battery Monitor Module harness is open or shorted, Battery Monitor 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.
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Code Popularity 2,137
How popular is this code, among other codes? Low
Table of contents Created and updated by William Orellana on Jan 12, 2020
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Code P16E3 GMC Description

The vehicle control module monitors the system voltage, current, and internal temperature to verify they are within the normal operating range. It also monitors ROM or RAM memory faults, and performs other internal diagnostics.
OBDII Code P16E3 GMC - Battery Monitor Module Data Incompatible Diagnostic - AutoCodes.com
P16E3 GMC Code - Battery Monitor Module Data Incompatible Diagnostic

What are the Possible Causes of the DTC P16E3 GMC?

  • Faulty Battery Monitor Module
  • Battery Monitor Module harness is open or shorted
  • Battery Monitor Module circuit poor electrical connection

How to Fix the DTC P16E3 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 P16E3 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 P16E3 GMC code?

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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 P16E3 GMC Code

1. What does the OBDII code P16E3 mean on a GMC vehicle?

The P16E3 code indicates that the Battery Monitor Module (BMM) has detected data it considers incompatible or invalid, potentially affecting the vehicle’s battery monitoring system.

2. What are the common symptoms of a P16E3 code?

Symptoms may include a check engine light, issues with battery charging, fluctuating electrical performance, or the vehicle failing to enter certain modes like start-stop.

3. What causes the P16E3 code to appear?

The code can be triggered by a faulty Battery Monitor Module, software issues, damaged wiring or connectors, or communication errors between modules.

4. Can a weak or failing battery cause the P16E3 code?

Yes, a weak or failing battery can result in data inconsistencies that may trigger this code.

5. How can I diagnose the P16E3 code on my GMC?

Diagnostics typically involve scanning for codes, inspecting the Battery Monitor Module and wiring for damage, and verifying the battery's health and charge level.

6. Can driving with a P16E3 code cause damage to my vehicle?

Driving with this code may lead to improper battery monitoring, which could impact charging performance or battery life, but immediate damage is unlikely.

7. How do you fix the P16E3 code on a GMC?

Repairs may include reprogramming the Battery Monitor Module, replacing faulty components like the module or battery, and repairing damaged wiring or connectors.

8. Is a software update needed to resolve the P16E3 code?

In some cases, a software update for the Battery Monitor Module or related systems may resolve the issue if it’s caused by programming errors.

9. How much does it cost to repair the P16E3 code on a GMC?

Costs can vary depending on the diagnosis, with repairs ranging from $100 for basic wiring fixes to $500 or more for module replacement or reprogramming.

10. Can I reset the P16E3 code without fixing the problem?

You can clear the code temporarily by using a scan tool, but the issue will likely return if the underlying problem isn’t resolved.

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