AutoCodesGMC – P0AC6 2016 GMC Sierra

P0AC6 2016 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 2016 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 146
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 2016 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 2016 GMC Sierra - Hybrid/EV Battery Temperature Sensor 2 Performance - AutoCodes.com
P0AC6 2016 GMC Sierra Code - Hybrid/EV Battery Temperature Sensor 2 Performance

What are the Possible Causes of the DTC P0AC6 2016 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 2016 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 2016 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 2016 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 2016 GMC Sierra Code

1. What does the OBDII code P0AC6 mean on a 2016 GMC Sierra?

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

2. What are the symptoms of code P0AC6 in a 2016 GMC Sierra?

Symptoms may include an illuminated check engine light, reduced fuel efficiency, limited hybrid system performance, or the vehicle entering a fail-safe mode.

3. What causes the P0AC6 code to appear on a 2016 GMC Sierra?

Common causes include a faulty battery temperature sensor, damaged wiring or connectors, or issues with the hybrid battery control module.

4. How do I diagnose the P0AC6 code on my GMC Sierra?

Diagnosis involves scanning for additional codes, inspecting the wiring and connectors around Battery Temperature Sensor 2, and testing the sensor's resistance and output.

5. Can I drive my 2016 GMC Sierra with the P0AC6 code?

It’s not recommended, as the hybrid system may not function properly, potentially causing reduced performance or damage to the battery system.

6. How do I fix the P0AC6 code on a 2016 GMC Sierra?

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

7. How much does it cost to fix the P0AC6 code on a 2016 GMC Sierra?

Costs vary depending on the issue, with sensor replacement typically ranging from $100 to $300, while control module repairs or replacements can be significantly more expensive.

8. Is the P0AC6 code specific to GMC Sierra hybrid models?

Yes, this code is specific to hybrid or electric vehicle systems and will only appear on models equipped with hybrid drivetrains.

9. Can a dead or weak 12V battery cause the P0AC6 code?

A weak 12V battery is unlikely to directly cause the P0AC6 code but could lead to other hybrid system issues that might indirectly contribute to the problem.

10. Does the P0AC6 code require reprogramming the hybrid control module?

Reprogramming is only necessary if the control module itself is faulty or if a software update is required to resolve the issue.

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