AutoCodes – Generic – P16E2

P16E2 Code - Battery Monitor Module Read Only Memory

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
P16E2 indicates Battery Monitor Module Read Only Memory.
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 15,973
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 P16E2 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 P16E2 - Battery Monitor Module Read Only Memory - AutoCodes.com
P16E2 Code - Battery Monitor Module Read Only Memory

What are the Possible Causes of the DTC P16E2?

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

How to Fix the DTC P16E2?

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 P16E2 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 P16E2 code?

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Information for Specific Makes

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 P16E2 Code

1. What are the common symptoms associated with OBDII code P16E2 (Battery Monitor Module Read Only Memory)?

The common symptoms include issues with starting the vehicle, dimming or flickering lights, and a warning light on the dashboard indicating a problem with the battery or charging system.

2. What are the possible causes of OBDII code P16E2?

Possible causes of this code include a faulty Battery Monitor Module, a damaged or corrupted Read Only Memory (ROM) in the module, wiring issues, or a failing battery.

3. How can I diagnose the source of OBDII code P16E2?

Diagnostic steps may include checking the battery voltage, inspecting the Battery Monitor Module for physical damage, testing the connections and wiring related to the module, and using a diagnostic scanner to retrieve specific error codes.

4. Is it safe to continue driving with OBDII code P16E2 present?

It is not recommended to continue driving with this code present, as it can lead to potential issues with the vehicle's electrical system and may cause further damage or leave you stranded due to a dead battery.

5. How can I repair OBDII code P16E2 on my own?

DIY repair tips may include checking and tightening battery connections, inspecting the Battery Monitor Module for visible damage, and clearing the code with an OBDII scanner to see if it returns.

6. Can a failing battery cause OBDII code P16E2 to appear?

Yes, a failing battery can cause this code to appear, as the Battery Monitor Module relies on accurate voltage readings to function properly. If the battery is not providing sufficient power, it can trigger the P16E2 code.

7. Is it necessary to replace the Battery Monitor Module to fix OBDII code P16E2?

In some cases, replacing the Battery Monitor Module may be necessary to resolve the P16E2 code. However, it is recommended to diagnose the issue thoroughly before replacing any components to avoid unnecessary costs.

8. How much does it typically cost to repair OBDII code P16E2 at a mechanic?

The cost of repairing this code can vary depending on the underlying cause and the labor rates of the mechanic. It is advisable to get multiple quotes from different repair shops to ensure a fair price.

9. Can I prevent OBDII code P16E2 from reoccurring in the future?

Regular maintenance of the battery, charging system, and electrical components can help prevent the recurrence of this code. Keeping the connections clean and secure can also contribute to avoiding issues with the Battery Monitor Module.

10. Will resetting the OBDII code P16E2 make it go away permanently?

Resetting the code may temporarily clear the warning light, but if the underlying issue that triggered the code is not addressed, it is likely to reappear. It is important to diagnose and repair the root cause of the problem to prevent future occurrences of P16E2.

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