AutoCodesGMC – P0AC6 2015 GMC Sierra

P0AC6 2015 GMC Sierra Code - Hybrid/EV Battery Temperature Sensor 2 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
P0AC6 2015 GMC Sierra indicates Hybrid/EV Battery Temperature Sensor 2 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 159
How popular is this code, among other codes? Low
Table of contents Created and updated by William Orellana on Mar 22, 2024
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Code P0AC6 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 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 P0AC6 2015 GMC Sierra - Hybrid/EV Battery Temperature Sensor 2 Performance - AutoCodes.com
P0AC6 2015 GMC Sierra Code - Hybrid/EV Battery Temperature Sensor 2 Performance

What are the Possible Causes of the DTC P0AC6 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 P0AC6 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 P0AC6 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 P0AC6 2015 GMC Sierra 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 P0AC6 2015 GMC Sierra Code

1. What does the OBDII code P0AC6 mean on a 2015 GMC Sierra?

The P0AC6 code indicates an issue with the performance of Hybrid/EV Battery Temperature Sensor 2, which monitors the temperature of the vehicle's hybrid battery.

2. What are the symptoms of the P0AC6 code in a 2015 GMC Sierra?

Common symptoms include warning lights on the dashboard (e.g., hybrid system warning), reduced fuel efficiency, and possible limitations in EV mode operation.

3. What causes the P0AC6 code to appear on a GMC Sierra?

Possible causes include a faulty battery temperature sensor, wiring issues such as corrosion or damage, or a malfunction in the hybrid battery control module.

4. Can I continue driving with the P0AC6 code in my GMC Sierra?

While the truck may still be drivable, ignoring the code can lead to further damage to the hybrid battery system or reduced performance. Prompt diagnosis and repair are recommended.

5. How is the P0AC6 code diagnosed?

A technician will use a scan tool to confirm the code, inspect wiring and connectors for damage, and test the battery temperature sensor for proper functionality.

6. How do you fix the P0AC6 code on a 2015 GMC Sierra?

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

7. How much does it cost to fix the P0AC6 code on a GMC Sierra?

Repair costs vary depending on the issue but typically range from $150 to $500, depending on whether the sensor or related components need replacement.

8. Can a weak hybrid battery cause the P0AC6 code to trigger?

Yes, a degraded or overheating hybrid battery may cause abnormal temperature readings, triggering the code.

9. Is the P0AC6 code specific to the GMC Sierra?

No, the P0AC6 code can appear in other hybrid or EV vehicles with similar battery temperature monitoring systems, but the specifics of the repair may vary.

10. Is it possible for a software issue to cause the P0AC6 code?

Yes, outdated or malfunctioning hybrid battery control module software can sometimes cause false readings and trigger this code.

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