AutoCodes – GMC – P1AE2 GMC

P1AE2 GMC Code - Battery Energy Control Module High Voltage System Interlock Circuit

Quick Answer

The high voltage interlock circuit is utilized to verify high voltage component integrity. Common causes include Faulty Drive Motor Generator Power Inverter Module, Drive Motor Generator Power Inverter Module harness is open or shorted, Drive Motor Generator Power Inverter 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: P1AE2 GMC indicates Battery Energy Control Module High Voltage System Interlock Circuit.
Common causes: Common causes include Faulty Drive Motor Generator Power Inverter Module, Drive Motor Generator Power Inverter Module harness is open or shorted, Drive Motor Generator Power Inverter 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 1,500

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 Mar 01, 2020

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code P1AE2 GMC Description

The high voltage interlock circuit is utilized to verify high voltage component integrity. High voltage interlock circuit is a circuit loop that passes through certain high voltage components. High voltage interlock circuit is used to determine if access to high voltage components is being attempted. The opening of these high voltage components causes the high voltage interlock circuit to open. The battery energy control module sources about 12 mA of current on the 5V high voltage interlock circuit loop. The battery energy control module monitors both the high voltage interlock source current circuit and the high voltage interlock return current circuit in order to detect circuit faults. Both motor control modules monitor the circuit for current in order to detect an open condition. When the battery energy control module and/or the motor control modules sense conditions such as a loss of high voltage interlock circuit current, the high voltage contactor relays are commanded open by the hybrid powertrain control module.

OBDII Code P1AE2 GMC - Battery Energy Control Module High Voltage System Interlock Circuit - AutoCodes.com — P1AE2 GMC Code - Battery Energy Control Module High Voltage System Interlock Circuit

What does this mean?

What are the Possible Causes of the DTC P1AE2 GMC?

Faulty Drive Motor Generator Power Inverter Module
Drive Motor Generator Power Inverter Module harness is open or shorted
Drive Motor Generator Power Inverter Module circuit poor electrical connection

How to Fix the DTC P1AE2 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 P1AE2 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.

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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 P1AE2 GMC Code

1. What are the common symptoms of OBDII code P1AE2 GMC?

- Common symptoms include reduced engine power, illuminated check engine light, and potential issues with the hybrid or electric vehicle system.

2. What causes the OBDII code P1AE2 GMC to trigger?

- This code typically triggers due to a malfunction in the Battery Energy Control Module High Voltage System Interlock Circuit, which may be caused by wiring issues, a faulty module, or a communication error.

3. How serious is the OBDII code P1AE2 GMC?

- This code should be addressed promptly as it can affect the performance and safety of the vehicle, especially in hybrid or electric models where the high voltage system is crucial.

4. Can I drive my vehicle with the OBDII code P1AE2 GMC present?

- It is not recommended to drive the vehicle with this code present, as it can lead to further damage or safety hazards. It's best to have the issue diagnosed and repaired by a qualified technician.

5. How is the OBDII code P1AE2 GMC diagnosed?

- Diagnosis typically involves using a scan tool to retrieve the fault codes, followed by a thorough inspection of the Battery Energy Control Module, wiring, and related components to pinpoint the exact cause of the issue.

6. Are there any DIY repair tips for the OBDII code P1AE2 GMC?

- DIY repair for this code is not recommended due to the complexity of the high voltage system involved. It's best to seek professional help to accurately diagnose and repair the issue.

7. How much does it cost to fix the OBDII code P1AE2 GMC?

- The cost of repair can vary depending on the exact cause of the issue, parts needed, and labor rates. It's advisable to get a diagnostic and repair estimate from a trusted mechanic.

8. Can a faulty Battery Energy Control Module be repaired, or does it need to be replaced?

- In some cases, the Battery Energy Control Module may be repairable, but replacement is often recommended for reliability and safety reasons. A professional technician can advise on the best course of action.

9. Will resetting the fault codes make the OBDII code P1AE2 GMC go away?

- Resetting the fault codes may temporarily clear the check engine light, but the underlying issue causing the code will persist. It's crucial to address the root cause of the problem to prevent further issues.

10. Is the OBDII code P1AE2 GMC specific to GMC vehicles only?

- While this specific code is associated with GMC vehicles, similar codes related to the Battery Energy Control Module High Voltage System Interlock Circuit may apply to other manufacturers' hybrid or electric models as well.