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P1AE3 Cadillac 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 Cadillac 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 875

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

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 Cadillac?

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 Cadillac 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 Cadillac Code

1. What are the common symptoms of OBDII code P1AE3 in a Cadillac related to the Battery Energy Control Module High Voltage System Interlock Circuit Low Voltage issue?

- Common symptoms include reduced vehicle performance, decreased fuel efficiency, and possible illumination of the Check Engine Light.

2. What can cause OBDII code P1AE3 in a Cadillac related to the Battery Energy Control Module High Voltage System Interlock Circuit Low Voltage issue?

- This code can be triggered by a faulty battery energy control module, damaged wiring, or a malfunction in the high voltage system interlock circuit.

3. How can I diagnose the OBDII code P1AE3 in a Cadillac related to the Battery Energy Control Module High Voltage System Interlock Circuit Low Voltage issue?

- Diagnosis typically involves using an OBDII scanner to read the code, conducting a visual inspection of wiring connections, and testing the battery energy control module.

4. What are some repair tips for fixing OBDII code P1AE3 in a Cadillac related to the Battery Energy Control Module High Voltage System Interlock Circuit Low Voltage issue?

- Repairs may involve replacing the battery energy control module, repairing or replacing damaged wiring, and ensuring proper connections in the high voltage system interlock circuit.

5. Can I drive my Cadillac with OBDII code P1AE3 related to the Battery Energy Control Module High Voltage System Interlock Circuit Low Voltage issue?

- It is recommended to address the issue promptly to avoid potential damage to other components. It is advisable to limit driving until the problem is diagnosed and repaired.

6. Is it safe to continue driving my Cadillac if the Check Engine Light is on due to OBDII code P1AE3 related to the Battery Energy Control Module High Voltage System Interlock Circuit Low Voltage issue?

- While the vehicle may still be operable, it is advisable to have the issue addressed by a professional to prevent further damage to the high voltage system or other components.

7. How much does it typically cost to repair OBDII code P1AE3 in a Cadillac related to the Battery Energy Control Module High Voltage System Interlock Circuit Low Voltage issue?

- Repair costs can vary depending on the specific cause of the issue, but they may range from a few hundred to over a thousand dollars, including parts and labor.

8. Can a DIY enthusiast repair OBDII code P1AE3 in a Cadillac related to the Battery Energy Control Module High Voltage System Interlock Circuit Low Voltage issue?

- While some basic troubleshooting and repairs may be possible for experienced DIYers, addressing this specific issue often requires specialized knowledge and tools best handled by a professional mechanic.

9. What steps should I take if OBDII code P1AE3 reappears after repairs related to the Battery Energy Control Module High Voltage System Interlock Circuit Low Voltage issue in my Cadillac?

- If the code reappears, it may indicate that the root cause of the problem was not fully addressed. Return to the repair facility to have the issue re-evaluated and repaired as needed.

10. How long does it typically take to repair OBDII code P1AE3 in a Cadillac related to the Battery Energy Control Module High Voltage System Interlock Circuit Low Voltage issue?

- The repair time can vary based on the extent of the issue and availability of parts. In general, it may take a few hours to a full day for a mechanic to diagnose and repair the problem.