AutoCodesGeneric – P1EC2

P1EC2 Code - Battery Energy Control Module High-Voltage Energy Communication Bus Enable Circuit High Voltage

Quick Answer

The hybrid powertrain control module 2 activates the high-voltage energy management communication enable circuit when the vehicle is on. Common causes include Faulty Hybrid Powertrain Control Module 2, Hybrid Powertrain Control Module 2 harness is open or shorted, Hybrid Powertrain Control Module 2 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
P1EC2 indicates Battery Energy Control Module High-Voltage Energy Communication Bus Enable Circuit High Voltage .
Common causes
Common causes include Faulty Hybrid Powertrain Control Module 2, Hybrid Powertrain Control Module 2 harness is open or shorted, Hybrid Powertrain Control Module 2 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 2,059
How popular is this code, among other codes? Low
Table of contents Created and updated by William Orellana on Apr 25, 2020
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Code P1EC2 Description

The hybrid powertrain control module 2 activates the high-voltage energy management communication enable circuit when the vehicle is on. The high-voltage energy management communication enable circuit wakes up the battery energy control module for serial data communication.
The battery energy control module compares the high-voltage energy management communication enable hardwire signal with a hybrid powertrain control module 2 serial data message indicating that the high-voltage energy management communication enable signal is active.
OBDII Code P1EC2 - Battery Energy Control Module High-Voltage Energy Communication Bus Enable Circuit High Voltage  - AutoCodes.com
P1EC2 Code - Battery Energy Control Module High-Voltage Energy Communication Bus Enable Circuit High Voltage

What are the Possible Causes of the DTC P1EC2?

  • Faulty Hybrid Powertrain Control Module 2
  • Hybrid Powertrain Control Module 2 harness is open or shorted
  • Hybrid Powertrain Control Module 2 circuit poor electrical connection

How to Fix the DTC P1EC2?

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 P1EC2 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 P1EC2 code?

Need more information on how to fix the P1EC2 code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the P1EC2 code diagnosed by a professional: Find a repair shop in your area

Information for Specific Makes

  • P1EC2 Buick — Battery Energy Control Module High-Voltage Energy Communication Bus Enable Circuit High Voltage
  • P1EC2 Cadillac — Battery Energy Control Module High-Voltage Energy Communication Bus Enable Circuit High Voltage
  • P1EC2 Chevrolet — Battery Energy Control Module High-Voltage Energy Communication Bus Enable Circuit High Voltage
  • P1EC2 GMC — Battery Energy Control Module High-Voltage Energy Communication Bus Enable Circuit High Voltage
  • P1EC2 Saturn — Battery Energy Control Module High-Voltage Energy Communication Bus Enable Circuit High Voltage
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 P1EC2 Code

What does the OBDII code P1EC2 mean?

The OBDII code P1EC2 refers to a problem with the Battery Energy Control Module (BECM) regarding the high-voltage energy communication bus enable circuit, indicating a high voltage issue.

What symptoms might indicate a P1EC2 code?

Common symptoms include warning lights on the dashboard, reduced engine power, unexpected shutdowns, or issues with the hybrid or electric vehicle’s performance.

What can cause the P1EC2 code to trigger?

Causes may include a faulty Battery Energy Control Module, damaged wiring or connections, issues with the high-voltage battery, or problems in the communication bus.

How can I diagnose a P1EC2 code?

To diagnose the P1EC2 code, use an OBD-II scanner to confirm the code, inspect the wiring and connectors related to the BECM, and check the high-voltage battery condition.

What are some repair tips for fixing a P1EC2 code?

Repair tips include inspecting and repairing any damaged wiring, replacing a faulty Battery Energy Control Module, and ensuring all connections are secure and free of corrosion.

Can I drive my vehicle with a P1EC2 code?

It is not advisable to drive your vehicle with a P1EC2 code, as it can lead to reduced performance and safety issues, especially in hybrid or electric vehicles.

Will clearing the P1EC2 code solve the problem?

Clearing the code may temporarily turn off the warning light, but it does not fix the underlying issue, and the code will likely return if the problem persists.

How much does it typically cost to repair a P1EC2 code?

Repair costs can vary widely depending on the underlying issue; replacing a Battery Energy Control Module can range from $500 to $2,000 or more depending on the vehicle.

Is it safe to attempt repairs for a P1EC2 code myself?

If you have experience with automotive repairs and understand high-voltage systems, you may attempt repairs. However, if you are unsure, it’s best to consult a professional mechanic due to safety risks.

Discuss the causes and fixes for P1EC2 OBDII Code

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