P0ACC 2014 GMC Sierra Code - Hybrid/EV Battery Temperature Sensor 3 Circuit Low Voltage
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
- P0ACC 2014 GMC Sierra indicates Hybrid/EV Battery Temperature Sensor 3 Circuit Low Voltage.
- 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.
Code P0ACC 2014 GMC Sierra Description
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 hybrid battery temperature sensor is greater than 160°C (320°F).
What are the Possible Causes of the DTC P0ACC 2014 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 P0ACC 2014 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 P0ACC 2014 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.
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Frequently Asked Questions about P0ACC 2014 GMC Sierra Code
1. What does the OBDII code P0ACC mean on a 2014 GMC Sierra?
P0ACC indicates a low voltage issue in the Hybrid/EV Battery Temperature Sensor 3 Circuit, which monitors the temperature of the hybrid/EV battery pack.
2. What are the symptoms of a P0ACC code on a 2014 GMC Sierra?
Common symptoms include reduced fuel efficiency, limited hybrid or EV performance, warning lights on the dashboard, and possible failure to enter EV mode.
3. What causes the P0ACC code to appear?
Causes may include a faulty battery temperature sensor, damaged wiring or connectors in the sensor circuit, or an issue with the hybrid battery control module.
4. Can I drive my 2014 GMC Sierra with a P0ACC code?
Driving with this code is not recommended, as it could lead to improper battery temperature regulation and potential damage to the hybrid/EV battery pack.
5. How do I diagnose the P0ACC code?
Diagnosis involves using a scan tool to confirm the code, inspecting the battery temperature sensor and wiring for damage, and testing the sensor's functionality with a multimeter.
6. How do I fix the P0ACC code on my 2014 GMC Sierra?
Repairs may include replacing the faulty temperature sensor, repairing damaged wiring or connectors, or reprogramming or replacing the hybrid battery control module.
7. How much does it cost to repair the P0ACC code?
Repair costs vary but typically range from $150 to $500 depending on whether the sensor, wiring, or control module needs replacement.
8. Can a low hybrid battery voltage cause the P0ACC code?
No, the P0ACC code specifically refers to a low voltage issue in the temperature sensor circuit, not the overall battery voltage.
9. How do I prevent the P0ACC code from coming back?
Regular maintenance of the hybrid/EV system, including periodic inspection of sensors, wiring, and connectors, can help prevent recurrence.
10. Is the P0ACC code covered under warranty?
It may be covered under the hybrid/EV system warranty if the vehicle is still within the coverage period. Check with your GMC dealer for details.
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