Engine-CodesGMC – P0AEB 2017 GMC Sierra

P0AEB 2017 GMC Sierra Code - Hybrid/EV Battery Temperature Sensor 4 Circuit High Voltage

Quick Answer

The diagnostic trouble code P0AEB for a 2017 GMC Sierra indicates an issue with the Hybrid/EV Battery Temperature Sensor 4 Circuit High Voltage. Common causes include Faulty Temperature Sensor: A malfunctioning temperature sensor can trigger this code by providing inaccurate readings, Wiring Issues: Damaged or corroded wiring connecting the sensor to the vehicle's computer can cause communication errors and trigger the code, Battery Pack Problems: Issues with the battery pack itself, such as overheating or internal damage, can lead to high voltage readings. 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 2017 GMC Sierra indicates Hybrid/EV Battery Temperature Sensor 4 Circuit High Voltage.
Common causes
Common causes include Faulty Temperature Sensor: A malfunctioning temperature sensor can trigger this code by providing inaccurate readings, Wiring Issues: Damaged or corroded wiring connecting the sensor to the vehicle's computer can cause communication errors and trigger the code, Battery Pack Problems: Issues with the battery pack itself, such as overheating or internal damage, can lead to high voltage readings.
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.
Table of contents Created and updated by William Orellana on Sep 17, 2024
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Code P0AEB 2017 GMC Sierra Description

The diagnostic trouble code P0AEB for a 2017 GMC Sierra indicates an issue with the Hybrid/EV Battery Temperature Sensor 4 Circuit High Voltage. This sensor is responsible for monitoring the temperature of the hybrid or electric vehicle battery pack. When the sensor detects a high voltage reading in circuit 4, it triggers this code.

OBDII Code P0AEB 2017 GMC Sierra - Hybrid/EV Battery Temperature Sensor 4 Circuit High Voltage
P0AEB 2017 GMC Sierra Code - Hybrid/EV Battery Temperature Sensor 4 Circuit High Voltage

Common Causes of P0AEB 2017 GMC Sierra

  1. Faulty Temperature Sensor: A malfunctioning temperature sensor can trigger this code by providing inaccurate readings.
  2. Wiring Issues: Damaged or corroded wiring connecting the sensor to the vehicle's computer can cause communication errors and trigger the code.
  3. Battery Pack Problems: Issues with the battery pack itself, such as overheating or internal damage, can lead to high voltage readings.
  4. Software Glitch: Occasionally, a software glitch in the vehicle's computer system can cause erroneous readings from the temperature sensor.

Symptoms of P0AEB 2017 GMC Sierra

  1. Check Engine Light: The most common symptom associated with this code is the illumination of the check engine light on the vehicle's dashboard.
  2. Reduced Fuel Efficiency: The vehicle may experience decreased fuel efficiency due to the improper functioning of the battery temperature sensor.
  3. Battery Overheating: In severe cases, the battery pack may overheat, leading to potential safety hazards.
  4. Inconsistent Battery Performance: The vehicle's hybrid or electric system may exhibit erratic behavior or performance issues.

How to Fix P0AEB 2017 GMC Sierra

  1. Diagnostic Testing: Begin by using a diagnostic scanner to read and clear the trouble code. This will help identify the specific issue triggering the code.
  2. Check Sensor and Wiring: Inspect the temperature sensor and its wiring for any signs of damage or corrosion. Replace any faulty components.
  3. Test Battery Pack: Verify the condition of the battery pack to ensure it is functioning properly and not causing the high voltage readings.
  4. Reset System: After making any necessary repairs or replacements, reset the vehicle's computer system to clear the code and monitor for any recurring issues.

Cost to Fix P0AEB 2017 GMC Sierra

The cost of repairing a Hybrid/EV Battery Temperature Sensor 4 Circuit High Voltage issue can vary depending on the specific cause of the problem and the extent of the repairs needed. In general, the cost of parts for this repair can range from $100 to $300, while labor costs can add an additional $100 to $200. Therefore, the total repair cost may fall between $200 and $500. It is important to note that labor rates at auto repair shops can vary, so it is advisable to check with local shops for a more accurate estimate based on your location and vehicle.

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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 P0AEB 2017 GMC Sierra Code

1. What does the OBDII code P0AEB mean on a 2017 GMC Sierra?

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

2. What are the symptoms of the P0AEB code on a GMC Sierra?

Symptoms may include the hybrid system warning light, decreased fuel efficiency, reduced hybrid battery performance, or the vehicle entering limp mode.

3. What causes the P0AEB code to appear?

Common causes include a faulty battery temperature sensor, damaged wiring or connectors in the sensor circuit, or a malfunction in the hybrid battery control module.

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

Driving with this code is not recommended as it may lead to further damage to the hybrid system or reduced vehicle performance.

5. How is the P0AEB code diagnosed?

A technician will use a diagnostic scanner to confirm the code, inspect the battery temperature sensor and wiring, and perform voltage tests to identify the root cause.

6. How do I fix the P0AEB code on my 2017 GMC Sierra?

Repairs may involve replacing the faulty temperature sensor, repairing or replacing damaged wiring, or reprogramming the hybrid battery control module.

7. Is the P0AEB code specific to sensor 4?

Yes, this code specifically refers to a high voltage issue in the circuit for Hybrid/EV Battery Temperature Sensor 4.

8. How much does it cost to fix the P0AEB code on a GMC Sierra?

Repair costs can vary but typically range from $150 to $500, depending on whether the sensor, wiring, or control module needs replacement.

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

While a failing hybrid battery is not a direct cause, issues with the battery or its control system can contribute to triggering this code.

10. Can I reset the P0AEB code without repairs?

The code can be cleared temporarily with an OBDII scanner, but if the underlying issue is not fixed, it will likely reappear.

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