AutoCodes – GMC – P0AAD GMC

P0AAD GMC Code - Hybrid/EV Battery Pack Air Temperature Sensor 1 Performance

Quick Answer

The Battery Energy Control Module monitors an inlet air temperature sensor that is located at the inlet of the Hybrid/EV Battery Pack. Common causes include Faulty Hybrid/EV Battery Section 1 and Hybrid/EV Battery Section 2, Hybrid/EV Battery Section 1 and Hybrid/EV Battery Section 2 harness is open or shorted, Hybrid/EV Battery Section 1 and Hybrid/EV Battery Section 2 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: P0AAD GMC indicates Hybrid/EV Battery Pack Air Temperature Sensor 1 Performance.
Common causes: Common causes include Faulty Hybrid/EV Battery Section 1 and Hybrid/EV Battery Section 2, Hybrid/EV Battery Section 1 and Hybrid/EV Battery Section 2 harness is open or shorted, Hybrid/EV Battery Section 1 and Hybrid/EV Battery Section 2 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 843

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 Nov 20, 2019

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code P0AAD GMC Description

The Battery Energy Control Module monitors an inlet air temperature sensor that is located at the inlet of the Hybrid/EV Battery Pack. This temperature sensor is a variable resistor that measures the air temperature of the incoming air which is used to heat and cool the Hybrid/EV Battery Sections and the internal electronics of the Starter/Generator Control Module. The Battery Energy Control Module supplies 5 V to the signal circuit and a ground for the low reference circuit. The inlet air temperature sensor resistance changes with temperature of the incoming inlet air. As the temperature decreases, the sensor resistance increases. As the temperature increases, the sensor resistance decreases. The Starter/Generator Control Module will control the Hybrid/EV Battery Pack Cooling Fan based on the inlet air temperature and hybrid/EV battery temperature sensors.
The Starter/Generator Control Module performs a rationality diagnostic that compares the air Inlet temperature sensor output signal to the average battery temperature of the six battery cell temperature sensors. This diagnostic gets one chance to run during a drive cycle after a specific vehicle off time.

OBDII Code P0AAD GMC - Hybrid/EV Battery Pack Air Temperature Sensor 1 Performance - AutoCodes.com — P0AAD GMC Code - Hybrid/EV Battery Pack Air Temperature Sensor 1 Performance

What does this mean?

What are the Possible Causes of the DTC P0AAD GMC?

Faulty Hybrid/EV Battery Section 1 and Hybrid/EV Battery Section 2
Hybrid/EV Battery Section 1 and Hybrid/EV Battery Section 2 harness is open or shorted
Hybrid/EV Battery Section 1 and Hybrid/EV Battery Section 2 circuit poor electrical connection
Faulty Battery Energy Control Module

How to Fix the DTC P0AAD GMC?

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 P0AAD GMC 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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Need Help with the Code?

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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 P0AAD GMC Code

1. What are the common symptoms of OBDII code P0AAD in a GMC related to the Hybrid/EV Battery Pack Air Temperature Sensor 1 Performance issue?

The common symptoms include decreased fuel efficiency, reduced power output, and potential illumination of the check engine light.

2. What are the possible causes of OBDII code P0AAD in a GMC, indicating an issue with the Hybrid/EV Battery Pack Air Temperature Sensor 1 Performance?

Possible causes may include a faulty temperature sensor, issues with the sensor wiring or connections, or problems with the hybrid/EV battery pack itself.

3. How can I diagnose the OBDII code P0AAD in a GMC related to the Hybrid/EV Battery Pack Air Temperature Sensor 1 Performance problem?

Diagnosis typically involves using an OBDII scanner to retrieve the specific trouble code, inspecting the sensor and its connections for damage, and testing the sensor's functionality.

4. Can I continue driving my GMC with the OBDII code P0AAD indicating an issue with the Hybrid/EV Battery Pack Air Temperature Sensor 1 Performance?

It is not recommended to continue driving with this code present, as it can lead to further damage to the hybrid/EV system and potentially reduce the vehicle's performance.

5. How can I repair OBDII code P0AAD in a GMC related to the Hybrid/EV Battery Pack Air Temperature Sensor 1 Performance issue?

Repair options may include replacing the temperature sensor, repairing any damaged wiring or connections, or seeking assistance from a professional mechanic with experience in hybrid/EV systems.

6. Are there any specific maintenance tips to prevent OBDII code P0AAD from appearing in a GMC with a Hybrid/EV Battery Pack Air Temperature Sensor 1 Performance problem?

Regularly inspecting the sensor and its connections for any signs of wear or damage, as well as following the manufacturer's recommended maintenance schedule for the hybrid/EV system, can help prevent this issue.

7. Will resetting the OBDII code P0AAD in a GMC solve the Hybrid/EV Battery Pack Air Temperature Sensor 1 Performance problem?

Resetting the code may temporarily clear the check engine light, but if the underlying issue with the sensor or battery pack is not addressed, the code is likely to reappear.

8. Can a DIY enthusiast with basic mechanical skills repair OBDII code P0AAD in a GMC related to the Hybrid/EV Battery Pack Air Temperature Sensor 1 Performance issue?

While some aspects of the repair may be within reach of a DIY enthusiast, due to the complexity of hybrid/EV systems, it is recommended to seek professional help for accurate diagnosis and repair.

9. How can I ensure the OBDII code P0AAD related to the Hybrid/EV Battery Pack Air Temperature Sensor 1 Performance issue does not return after repair?

After repair, it is essential to clear the trouble code, conduct a thorough test drive to ensure proper sensor functionality, and monitor the vehicle for any recurring symptoms that may indicate further issues.

10. Is OBDII code P0AAD in a GMC indicating a problem with the Hybrid/EV Battery Pack Air Temperature Sensor 1 Performance covered under warranty?

Depending on the vehicle's warranty status and specific coverage terms, the repair for this issue may be covered by the manufacturer's warranty. It is advisable to check with the dealership or warranty provider for more information.