AutoCodes – GMC – P16D4 GMC

P16D4 GMC Code - Battery Monitor Module Circuit Low Voltage

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: P16D4 GMC indicates Battery Monitor Module Circuit Low Voltage.
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 1,213

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 P16D4 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 P16D4 GMC - Battery Monitor Module Circuit Low Voltage - AutoCodes.com — P16D4 GMC Code - Battery Monitor Module Circuit Low Voltage

What does this mean?

What are the Possible Causes of the DTC P16D4 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 P16D4 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 P16D4 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 P16D4 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 P16D4 GMC Code

1. What are common symptoms of OBDII code P16D4 GMC (Battery Monitor Module Circuit Low Voltage)?

- Common symptoms include a check engine light, reduced fuel efficiency, difficulty starting the vehicle, and possible electrical issues.

2. What can cause the OBDII code P16D4 GMC to trigger?

- The code may trigger due to a faulty battery monitor module, low battery voltage, poor electrical connections, or a failing battery.

3. How serious is the OBDII code P16D4 GMC?

- While the code may not cause immediate drivability issues, it is important to address it promptly to prevent potential battery and electrical system problems.

4. How can I diagnose the cause of OBDII code P16D4 GMC?

- Diagnosis typically involves checking the battery voltage, inspecting the battery monitor module and related wiring, and performing a thorough electrical system test.

5. What are some repair tips for OBDII code P16D4 GMC?

- Repair tips may include replacing the battery monitor module, addressing any battery issues, ensuring proper electrical connections, and clearing the trouble code.

6. Can I drive with the OBDII code P16D4 GMC active?

- It is generally safe to drive with the code active, but it is advisable to address the underlying issue as soon as possible to prevent further problems.

7. How much does it cost to repair OBDII code P16D4 GMC?

- Repair costs can vary depending on the exact cause of the code, but they may range from a few hundred dollars for simpler fixes to more expensive repairs for complex issues.

8. Can a DIY enthusiast fix OBDII code P16D4 GMC?

- Depending on the individual's skill level and access to tools, some DIY enthusiasts may be able to address the code by following repair guides or seeking assistance from automotive forums.

9. Will OBDII code P16D4 GMC reset on its own?

- The code may reset on its own if the underlying issue is resolved, but it is recommended to use an OBDII scanner to clear the code after making repairs.

10. How can I prevent OBDII code P16D4 GMC from reoccurring?

- To prevent the code from reoccurring, regular maintenance of the battery and electrical system is essential, along with addressing any issues promptly to avoid further complications.