AutoCodes – GMC – P0ACB 2017 GMC Sierra

P0ACB 2017 GMC Sierra Code - Hybrid/EV Battery Temperature Sensor 3 Performance

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: P0ACB 2017 GMC Sierra indicates Hybrid/EV Battery Temperature Sensor 3 Performance.
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.

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Code Popularity 210

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
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Code P0ACB 2017 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 difference between a single battery temperature sensor and an average of the other battery temperature sensors is greater than 25°C (45°F).

OBDII Code P0ACB 2017 GMC Sierra - Hybrid/EV Battery Temperature Sensor 3 Performance - AutoCodes.com — P0ACB 2017 GMC Sierra Code - Hybrid/EV Battery Temperature Sensor 3 Performance

What does this mean?

What are the Possible Causes of the DTC P0ACB 2017 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 P0ACB 2017 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 P0ACB 2017 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 P0ACB 2017 GMC Sierra code?

Need more information on how to fix the P0ACB 2017 GMC Sierra code? Get Access to Factory Service Manuals

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 P0ACB 2017 GMC Sierra Code

1. What does the OBDII code P0ACB mean on a 2017 GMC Sierra?

P0ACB indicates an issue with the performance of Hybrid/EV Battery Temperature Sensor 3, which monitors the temperature of the hybrid battery pack.

2. What are the symptoms of code P0ACB on a 2017 GMC Sierra?

Common symptoms include illumination of the check engine light, reduced fuel efficiency, limited hybrid system performance, or the vehicle entering a failsafe mode.

3. What causes the P0ACB code to appear?

Potential causes include a faulty temperature sensor, damaged wiring or connectors for the sensor, a software glitch in the hybrid control module, or battery overheating issues.

4. Can I drive my 2017 GMC Sierra with the P0ACB code active?

While the vehicle may still be drivable, itâ€™s not recommended as the hybrid systemâ€™s performance could be compromised, potentially leading to further damage.

5. How can I diagnose the P0ACB code on my GMC Sierra?

Start by using a scan tool to confirm the code, then inspect the wiring and connectors for the temperature sensor. Testing the sensor's resistance and checking for software updates in the hybrid control module may also be necessary.

6. How do I fix the P0ACB code on a 2017 GMC Sierra?

Repairs may include replacing the faulty temperature sensor, repairing damaged wiring, or reprogramming the hybrid control module if a software update is available.

7. What tools are needed to troubleshoot the P0ACB code?

Youâ€™ll need an OBDII scan tool, a digital multimeter to test sensor resistance, and possibly access to GMC-specific repair manuals or software.

8. How much does it cost to fix the P0ACB code on a GMC Sierra?

The cost can vary depending on the issue. Replacing a temperature sensor may cost $100-$300, while wiring repairs or control module reprogramming may add to the expense.

9. Can a software update resolve the P0ACB code?

In some cases, a software update to the hybrid control module may correct the issue if itâ€™s related to a programming error.

10. How can I prevent the P0ACB code from recurring?

Regular maintenance, keeping the hybrid system clean, and promptly addressing warning lights will help prevent future occurrences. Ensure the battery cooling system is functioning properly to avoid overheating.