AutoCodes – Cadillac – P1AE6 Cadillac

P1AE6 Cadillac Code - Battery Energy Control Module Hybrid/EV Battery Voltage Isolation Sensor Circuit

Quick Answer

The Battery Energy Control Module will diagnose its own systems and determine when a fault condition is present. Common causes include Faulty Hybrid/EV Battery Pack, Hybrid/EV Battery Pack harness is open or shorted, Hybrid/EV Battery Pack 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: P1AE6 Cadillac indicates Battery Energy Control Module Hybrid/EV Battery Voltage Isolation Sensor Circuit.
Common causes: Common causes include Faulty Hybrid/EV Battery Pack, Hybrid/EV Battery Pack harness is open or shorted, Hybrid/EV Battery Pack 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 891

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 P1AE6 Cadillac Description

The Battery Energy Control Module will diagnose its own systems and determine when a fault condition is present. Diagnostics and system status is communicated from the battery energy control module to the vehicle control interface module through serial data. The vehicle control interface module is the host controller for Diagnostic Trouble Code (DTC) information.
The vehicle is equipped with a high voltage isolation monitor feature. The purpose of the high voltage isolation circuit is to test the resistance between the high voltage positive and negative direct current (DC) bus and chassis ground. The battery energy control module only runs this test when the ignition transitions from ON to OFF and the high voltage contactor relays have opened. The battery energy control module has an internal isolation sensor that measures the resistance between the high voltage DC positive and negative bus and chassis ground. The battery energy control module runs an internal self check of this sensor circuit. The battery energy control module sends an AC signal over the DC bus and monitors its amplitude. A low amplitude or collapsed return signal indicates a loss of resistance to chassis ground and a loss of isolation will be indicated by the hybrid powertrain control module 2. Because this diagnostic runs after system power down, the diagnostic status does not get reported until the next key cycle.

OBDII Code P1AE6 Cadillac - Battery Energy Control Module Hybrid/EV Battery Voltage Isolation Sensor Circuit - AutoCodes.com — P1AE6 Cadillac Code - Battery Energy Control Module Hybrid/EV Battery Voltage Isolation Sensor Circuit

What does this mean?

What are the Possible Causes of the DTC P1AE6 Cadillac?

Faulty Hybrid/EV Battery Pack
Hybrid/EV Battery Pack harness is open or shorted
Hybrid/EV Battery Pack circuit poor electrical connection

How to Fix the DTC P1AE6 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 P1AE6 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 P1AE6 Cadillac Code

1. What are common symptoms of OBDII code P1AE6 in a Cadillac related to the Battery Energy Control Module Hybrid/EV Battery Voltage Isolation Sensor Circuit?

- Common symptoms include hybrid or electric vehicle drivetrain issues, reduced fuel efficiency, and potential loss of power.

2. What can cause the OBDII code P1AE6 to trigger in a Cadillac?

- The code P1AE6 is typically triggered by a fault in the hybrid/EV battery voltage isolation sensor circuit, which may be caused by sensor malfunctions, wiring issues, or a faulty battery control module.

3. How can I diagnose the issue related to the Battery Energy Control Module Hybrid/EV Battery Voltage Isolation Sensor Circuit in my Cadillac?

- Diagnosing the issue may involve using a professional OBDII scanner to read the fault code, checking the sensor and wiring connections for any visible damage, and performing a thorough inspection of the battery energy control module.

4. What are the potential risks of driving with the OBDII code P1AE6 present in a Cadillac?

- Driving with the P1AE6 code can lead to further damage to the hybrid or electric vehicle components, reduced performance, and potential safety hazards related to the drivetrain.

5. Can I repair the OBDII code P1AE6 issue in a Cadillac by myself, or do I need professional assistance?

- Repairing the P1AE6 code related to the Battery Energy Control Module Hybrid/EV Battery Voltage Isolation Sensor Circuit may require specialized knowledge and tools, so it is recommended to seek professional assistance for proper diagnosis and repair.

6. How much does it typically cost to repair the Battery Energy Control Module Hybrid/EV Battery Voltage Isolation Sensor Circuit issue in a Cadillac?

- The cost of repair can vary depending on the extent of the damage and the specific components that need to be replaced, but it can range from a few hundred to over a thousand dollars.

7. Are there any preventive maintenance tips to avoid encountering the OBDII code P1AE6 in a Cadillac?

- Regularly inspecting the hybrid/EV battery components, keeping the vehicle well-maintained, and addressing any warning signs or issues promptly can help prevent the occurrence of the P1AE6 code.

8. Can the OBDII code P1AE6 in a Cadillac be related to other underlying issues apart from the Battery Energy Control Module Hybrid/EV Battery Voltage Isolation Sensor Circuit?

- While the P1AE6 code is specifically related to the battery energy control module and voltage isolation sensor circuit, it is possible for other related issues within the hybrid or electric vehicle system to trigger similar fault codes.

9. Will resetting the OBDII code P1AE6 in a Cadillac make the issue go away permanently?

- Simply resetting the code may temporarily clear the warning light, but the underlying issue causing the P1AE6 code will likely persist and may need to be properly diagnosed and repaired to prevent further problems.

10. How long does it take to repair the Battery Energy Control Module Hybrid/EV Battery Voltage Isolation Sensor Circuit issue in a Cadillac?

- The repair time can vary depending on the complexity of the issue, availability of parts, and the expertise of the technician, but it may take several hours to a day for a complete diagnosis and repair.