AutoCodes – Chevrolet – P16DD Chevrolet

P16DD Chevrolet Code - Battery Monitor Module Current High

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: P16DD Chevrolet indicates Battery Monitor Module Current High.
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 1,935

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 P16DD Chevrolet 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 P16DD Chevrolet - Battery Monitor Module Current High - AutoCodes.com — P16DD Chevrolet Code - Battery Monitor Module Current High

What does this mean?

What are the Possible Causes of the DTC P16DD Chevrolet?

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

How to Fix the DTC P16DD Chevrolet?

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 P16DD Chevrolet 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.

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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 P16DD Chevrolet Code

1. What does the OBDII code P16DD mean on a Chevrolet?

P16DD indicates that the Battery Monitor Module (BMM) has detected a high current condition, which may point to an issue with the electrical system or battery monitoring circuit.

2. What are the common symptoms of a P16DD code in a Chevrolet?

Symptoms may include poor battery performance, difficulty starting the engine, dim or flickering lights, and the illumination of the check engine light.

3. What causes the P16DD code to appear in a Chevrolet?

Common causes include a faulty Battery Monitor Module, damaged or corroded battery cables, electrical wiring issues, or a failing car battery.

4. Can a weak or old car battery trigger the P16DD code?

Yes, a weak or failing battery that cannot maintain proper voltage or current can trigger the P16DD code.

5. How do you diagnose a P16DD code on a Chevrolet?

Diagnosis typically involves inspecting the battery and charging system, checking for damaged or corroded wiring, and testing the Battery Monitor Module for proper operation.

6. Can I drive my Chevrolet with a P16DD code?

Driving with a P16DD code is possible, but it is not recommended as it may lead to further electrical issues or a drained battery.

7. How is the P16DD code fixed in a Chevrolet?

Repairs may include replacing the Battery Monitor Module, cleaning or replacing corroded battery cables, repairing damaged wiring, or replacing the car battery.

8. How much does it cost to fix a P16DD code on a Chevrolet?

Repair costs can vary, but replacing the Battery Monitor Module typically ranges from $200 to $400, excluding additional costs if the battery or wiring needs repair.

9. Can a software update resolve the P16DD code in some Chevrolet models?

In some cases, a software update to the vehicle’s control module may address the issue if it’s related to a software glitch in the charging system.

10. Does the P16DD code always require parts replacement?

Not always. Sometimes the code can be resolved by cleaning corroded connections, repairing wiring, or resetting the system after verifying the components are functioning properly.