P0ACC 2017 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 2017 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 2017 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 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 P0ACC 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 P0ACC 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.
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Frequently Asked Questions about P0ACC 2017 GMC Sierra Code
1. What does the OBDII code P0ACC mean on a 2017 GMC Sierra?
P0ACC indicates a "Hybrid/EV Battery Temperature Sensor 3 Circuit Low Voltage," meaning the vehicle's system has detected a low voltage issue with the third temperature sensor in the hybrid/EV battery.
2. What are the common symptoms of a P0ACC code?
Symptoms may include the check engine light turning on, reduced hybrid system performance, limited driving range, or the vehicle entering a fail-safe or limp mode.
3. What causes the P0ACC code to appear?
Possible causes include a faulty battery temperature sensor, damaged or corroded wiring or connectors, or issues with the hybrid battery control module.
4. Can I drive my 2017 GMC Sierra with a P0ACC code?
While the vehicle may still be operable, driving with this code can lead to reduced performance and potential damage to the hybrid system. It’s best to address the issue promptly.
5. How do I diagnose the P0ACC code?
Start by inspecting the wiring and connectors for the battery temperature sensor. Use a multimeter to check for proper voltage and continuity. Scanning the system with an advanced diagnostic tool can help pinpoint the issue.
6. How do I fix the P0ACC code?
Repairs may involve replacing the faulty temperature sensor, repairing or replacing damaged wiring, or reprogramming/updating the hybrid control module if needed.
7. How much does it cost to fix a P0ACC code?
Repair costs vary based on the exact cause. Sensor replacement can cost $100–$300, while wiring repairs or module updates may cost more depending on labor rates.
8. Can a weak hybrid battery cause the P0ACC code?
Yes, a failing or degraded hybrid battery can indirectly cause this code if it affects the operation of the temperature sensors or control module.
9. Is the P0ACC code specific to the GMC Sierra?
No, the P0ACC code can appear on other hybrid or EV vehicles, but the specifics of the repair and symptoms may vary depending on the make and model.
10. Will clearing the P0ACC code fix the problem?
Clearing the code may temporarily turn off the check engine light, but it won’t resolve the underlying issue. Proper diagnosis and repair are necessary to prevent the code from returning.
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