AutoCodes – GMC – P1AE3 GMC

P1AE3 GMC Code - Battery Energy Control Module High Voltage System Interlock Circuit Low Voltage

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: P1AE3 GMC indicates Battery Energy Control Module High Voltage System Interlock Circuit Low Voltage.
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 1,092

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 P1AE3 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 P1AE3 GMC - Battery Energy Control Module High Voltage System Interlock Circuit Low Voltage - AutoCodes.com — P1AE3 GMC Code - Battery Energy Control Module High Voltage System Interlock Circuit Low Voltage

What does this mean?

What are the Possible Causes of the DTC P1AE3 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 P1AE3 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 P1AE3 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 P1AE3 GMC Code

1. What are common symptoms of OBDII code P1AE3 in a GMC vehicle?

- Common symptoms include warning lights such as the check engine light, reduced power mode, and potential issues with the vehicle's hybrid or electric propulsion system.

2. What could cause the Battery Energy Control Module High Voltage System Interlock Circuit Low Voltage code in a GMC vehicle?

- Possible causes include damaged wiring, faulty battery energy control module, issues with the high voltage system interlock circuit, or a malfunctioning high voltage battery.

3. How serious is the P1AE3 code in a GMC vehicle?

- This code typically indicates a problem with the high voltage system in a hybrid or electric vehicle. It is important to address the issue promptly to prevent further damage and ensure the vehicle's safety.

4. Can I continue driving my GMC vehicle with the Battery Energy Control Module High Voltage System Interlock Circuit Low Voltage code?

- It is not recommended to continue driving the vehicle when this code is present, as it could lead to potential safety hazards or further damage to the high voltage system.

5. How can I diagnose and repair OBDII code P1AE3 in my GMC vehicle?

- Diagnosis typically involves inspecting the high voltage system components, checking wiring connections, and using a diagnostic scan tool to pinpoint the exact cause. Repairs may involve replacing damaged components or addressing wiring issues.

6. Is it possible to reset the P1AE3 code in a GMC vehicle without fixing the underlying issue?

- While clearing the code may temporarily turn off the warning light, it is important to address the root cause of the problem to prevent it from reoccurring and potentially causing more severe issues.

7. Are there any safety precautions to keep in mind when working on the high voltage system related to code P1AE3 in a GMC vehicle?

- It is crucial to follow manufacturer guidelines and safety procedures when working on the high voltage system to prevent electric shock or other hazards. Consult a professional if you are unsure about handling these components.

8. Can extreme weather conditions affect the occurrence of the Battery Energy Control Module High Voltage System Interlock Circuit Low Voltage code in a GMC vehicle?

- Yes, extreme temperatures or weather conditions can potentially impact the performance of the high voltage system components, leading to the triggering of this OBDII code.

9. How long does it typically take to repair the P1AE3 code in a GMC vehicle?

- The repair time can vary depending on the exact cause of the code and the extent of the repairs needed. It is recommended to consult a professional mechanic for an accurate assessment and repair timeline.

10. Will fixing the Battery Energy Control Module High Voltage System Interlock Circuit Low Voltage code improve the overall performance of my GMC vehicle?

- Addressing this code and resolving any issues with the high voltage system can help restore the vehicle's performance and efficiency, ensuring safe and reliable operation.