AutoCodes – GMC – P0AEB 2015 GMC Sierra

P0AEB 2015 GMC Sierra Code - Hybrid/EV Battery Temperature Sensor 4 Circuit High Voltage

Quick Answer

Hybrid/EV Battery Temperature Sensors are used to monitor the battery temperature. Common causes include Faulty Hybrid/EV Battery Assembly, Hybrid/EV Battery Assembly harness is open or shorted, Hybrid/EV Battery Assembly 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: P0AEB 2015 GMC Sierra indicates Hybrid/EV Battery Temperature Sensor 4 Circuit High Voltage.
Common causes: Common causes include Faulty Hybrid/EV Battery Assembly, Hybrid/EV Battery Assembly harness is open or shorted, Hybrid/EV Battery Assembly 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.

Save to My Repairs My Repairs

AI answers can be wrong. Verify repairs with testing. Open full chat

Code Popularity 224

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 22, 2024

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
Add Comment

💬 Need more help? Ask Coddy for instant answers — it's free!

Code P0AEB 2015 GMC Sierra Description

Hybrid/EV Battery Temperature Sensors are used to monitor the battery temperature. The non-serviceable battery temperature sensors are located within the battery sections. Two temperature sensors are located in each battery section. The temperature sensor is a variable resistor that measures the temperature of the battery cell group. The hybrid/EV interface control module supplies 5 V to the signal circuit and is a ground for the low reference circuit. The battery temperature sensor resistance changes with battery temperature. As the temperature decreases, the sensor resistance increases. As the temperature increases, the sensor resistance decreases.
Each Hybrid/EV Battery Interface Control Module communicates the temperature sensor values to the Hybrid/EV Powertrain Control Module via serial data.
The Hybrid/EV Powertrain Control Module uses the battery temperature sensors to determine the Hybrid/EV Battery Module temperature in order to control the battery cooling system operation.
The Diagnostic Trouble Code (DTC) will be set when the hybrid battery temperature sensor is less than -69°C (-92°F).

OBDII Code P0AEB 2015 GMC Sierra - Hybrid/EV Battery Temperature Sensor 4 Circuit High Voltage - AutoCodes.com — P0AEB 2015 GMC Sierra Code - Hybrid/EV Battery Temperature Sensor 4 Circuit High Voltage

What does this mean?

What are the Possible Causes of the DTC P0AEB 2015 GMC Sierra?

Faulty Hybrid/EV Battery Assembly
Hybrid/EV Battery Assembly harness is open or shorted
Hybrid/EV Battery Assembly circuit poor electrical connection
Faulty Hybrid/EV Battery Interface Control Module

How to Fix the DTC P0AEB 2015 GMC Sierra?

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 P0AEB 2015 GMC Sierra 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.

Need more information about the P0AEB 2015 GMC Sierra code?

Need more information on how to fix the P0AEB 2015 GMC Sierra code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the P0AEB 2015 GMC Sierra code diagnosed by a professional: Find a repair shop in your area

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 P0AEB 2015 GMC Sierra Code

1. What does the OBDII code P0AEB mean on a 2015 GMC Sierra?

The P0AEB code indicates an issue with the Hybrid/EV Battery Temperature Sensor 4 Circuit, specifically detecting a high voltage condition.

2. What are the common symptoms of code P0AEB?

Symptoms may include an illuminated check engine light, reduced fuel economy, limited hybrid or EV functionality, and possible overheating of the battery system.

3. What causes the P0AEB code to appear?

This code can be caused by a faulty battery temperature sensor, damaged wiring or connectors in the sensor circuit, or issues with the hybrid battery control module.

4. Can I drive my 2015 GMC Sierra with the P0AEB code?

It is not recommended to drive for extended periods with this code, as it may lead to battery overheating or reduced hybrid system performance, potentially causing further damage.

5. How is the P0AEB code diagnosed?

A technician will use a scan tool to read freeze frame data, inspect the battery temperature sensor and its circuit for damage, and test the sensor's resistance and voltage readings.

6. How can I fix the P0AEB code?

Repairs may include replacing the faulty temperature sensor, repairing or replacing damaged wiring or connectors, or reprogramming/updating the hybrid battery control module.

7. Is the battery temperature sensor 4 specific to one area of the battery?

Yes, the "sensor 4" designation refers to a specific temperature sensor within the hybrid battery pack, which monitors a particular section of the battery for overheating.

8. Can a dead hybrid battery cause the P0AEB code?

A completely failed hybrid battery is unlikely to cause this code directly, but issues in the battery pack, such as overheating, may contribute to sensor or circuit problems.

9. How much does it cost to repair the P0AEB code on a 2015 GMC Sierra?

Repair costs can vary but typically range from $200 to $600, depending on whether the sensor, wiring, or control module needs replacement.

10. Will clearing the P0AEB code fix the problem?

Clearing the code may temporarily turn off the check engine light, but the issue will likely return unless the underlying problem with the sensor or circuit is resolved.