AutoCodes – Chevrolet – P1AE3 Chevrolet

P1AE3 Chevrolet 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 Chevrolet 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 1,377

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

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 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 P1AE3 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 P1AE3 Chevrolet Code

What does the OBDII code P1AE3 mean for a Chevrolet vehicle?

P1AE3 indicates an issue with the Battery Energy Control Module, specifically a low voltage in the High Voltage System Interlock Circuit, which is part of the hybrid or electric system.

What are the common symptoms of code P1AE3 in a Chevrolet?

Symptoms may include the check engine light turning on, reduced hybrid or electric system performance, limited power mode activation, or the vehicle failing to start.

What causes the P1AE3 code to appear in a Chevrolet?

Common causes include a damaged or disconnected high-voltage interlock circuit, corroded or loose wiring, a faulty Battery Energy Control Module, or issues with the high-voltage connectors.

Can I continue driving my Chevrolet with the P1AE3 code?

It is not recommended to drive with this code, as it may lead to reduced performance or potential safety risks due to high-voltage system issues.

How do you diagnose the P1AE3 code in a Chevrolet?

Diagnosis typically involves scanning the vehicle with an OBDII tool, inspecting the high-voltage interlock circuit for damage or disconnections, checking for wiring issues, and testing the Battery Energy Control Module.

How is the P1AE3 code repaired in a Chevrolet?

Repairs may include reconnecting or replacing damaged high-voltage interlock circuit components, repairing wiring, cleaning corroded connectors, or replacing the Battery Energy Control Module if faulty.

Can a weak 12V battery cause the P1AE3 code in a Chevrolet?

While unlikely, a weak 12V battery can sometimes trigger related faults in hybrid or electric systems, so itâ€™s worth checking its health during diagnosis.

How much does it cost to fix the P1AE3 code in a Chevrolet?

Repair costs can range from $100 for wiring repairs to over $1,000 if the Battery Energy Control Module needs replacement, depending on labor and parts.

Is the P1AE3 code specific to Chevrolet hybrid or electric vehicles?

Yes, this code typically applies to Chevrolet hybrid and electric vehicles that utilize a high-voltage system, such as the Volt or Bolt.

Can clearing the P1AE3 code solve the problem?

Clearing the code without addressing the underlying issue may temporarily turn off the check engine light, but the problem will likely return until repairs are made.