AutoCodes – Buick – P16D6 Buick

P16D6 Buick Code - Battery Monitor Module Current Low

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: P16D6 Buick indicates Battery Monitor Module Current Low.
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 967

How popular is this code, among other codes? Low

Repair Importance Level

Urgent (Diagnose now) (3 / 3)

Repair Difficulty Level

Advanced (Pro) (3 / 3)

What is this?

Table of contents Created and updated by William Orellana on Jan 12, 2020

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code P16D6 Buick 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 P16D6 Buick - Battery Monitor Module Current Low - AutoCodes.com — P16D6 Buick Code - Battery Monitor Module Current Low

What does this mean?

What are the Possible Causes of the DTC P16D6 Buick?

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

How to Fix the DTC P16D6 Buick?

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 P16D6 Buick 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 P16D6 Buick 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 P16D6 Buick Code

1. What does the OBDII code P16D6 mean on a Buick?

P16D6 indicates that the Battery Monitor Module (BMM) has detected a current level that is lower than expected, suggesting an issue with battery monitoring or wiring.

2. What are the common symptoms of the P16D6 code on a Buick?

Symptoms may include an illuminated check engine light, charging system warnings, inconsistent battery voltage readings, or difficulty starting the vehicle.

3. What causes the P16D6 code to appear?

Common causes include a faulty Battery Monitor Module, damaged or corroded wiring, poor electrical connections, or a weak or failing battery.

4. How do I diagnose the P16D6 code on my Buick?

Start by checking the battery condition, inspecting the Battery Monitor Module wiring and connectors for damage, and using a scan tool to verify module performance.

5. Can a weak battery trigger the P16D6 code on a Buick?

Yes, a weak or failing battery can cause the BMM to detect low current levels and set the P16D6 code.

6. Is it safe to drive with the P16D6 code on a Buick?

Driving with this code may be possible, but it could lead to electrical system issues or battery failure, so timely diagnosis and repair are recommended.

7. How do I fix the P16D6 code on my Buick?

Repairs may involve replacing the Battery Monitor Module, repairing damaged wiring, cleaning corroded connectors, or replacing the battery if it is weak or failing.

8. Can a software update fix the P16D6 code on a Buick?

In some cases, a software update for the vehicleâ€™s control modules may resolve the issue if it is related to a programming error.

9. How much does it cost to repair the P16D6 code on a Buick?

Repair costs vary depending on the root cause but can range from $100 for wiring repairs to $300 or more for replacing the Battery Monitor Module.

10. Can I clear the P16D6 code without fixing the issue?

Clearing the code without addressing the underlying issue is not recommended, as the problem will likely return and could lead to further complications.