P0ACE 2018 GMC Sierra Code - Hybrid/EV Battery Temperature Sensor 3 Circuit Erratic
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
- P0ACE 2018 GMC Sierra indicates Hybrid/EV Battery Temperature Sensor 3 Circuit Erratic.
- 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 P0ACE 2018 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 intermittent or has changed by 10°C (18°F) or greater for 4 out of 5 seconds.
What are the Possible Causes of the DTC P0ACE 2018 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 P0ACE 2018 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 P0ACE 2018 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 P0ACE 2018 GMC Sierra Code
1. What does the OBDII code P0ACE mean on a 2018 GMC Sierra?
The code P0ACE indicates an issue with the Hybrid/EV Battery Temperature Sensor 3 Circuit, specifically that it is behaving erratically or sending inconsistent signals.
2. What are the symptoms of code P0ACE on a 2018 GMC Sierra?
Common symptoms include the check engine light turning on, reduced hybrid or EV performance, decreased fuel efficiency, and potential battery overheating warnings.
3. What causes code P0ACE to appear on a 2018 GMC Sierra?
Possible causes include a faulty battery temperature sensor, damaged wiring or connectors in the sensor circuit, a malfunctioning hybrid battery control module, or electrical interference.
4. Can I drive my 2018 GMC Sierra with code P0ACE?
Driving with this code is not recommended, as it may lead to improper battery temperature management, potentially causing damage to the hybrid battery or reduced performance.
5. How do I diagnose the P0ACE code on a 2018 GMC Sierra?
Diagnosis involves inspecting the battery temperature sensor and its wiring for damage, testing the sensor’s operation with a multimeter, and using a scan tool to check the hybrid battery control module.
6. How is the P0ACE code fixed on a 2018 GMC Sierra?
Repairs may include replacing the faulty temperature sensor, repairing or replacing damaged wiring or connectors, or reprogramming or replacing the hybrid battery control module.
7. How much does it cost to fix the P0ACE code on a 2018 GMC Sierra?
The repair cost can range from $150 to $500, depending on whether the issue is with the sensor, wiring, or control module, and labor costs at your repair shop.
8. Can a bad battery temperature sensor damage the hybrid battery in a 2018 GMC Sierra?
Yes, a malfunctioning sensor can lead to improper battery temperature regulation, potentially causing overheating or reduced battery life.
9. Is a software update required to fix the P0ACE code on a 2018 GMC Sierra?
In some cases, a software update for the hybrid battery control module may be required if the issue is related to programming errors.
10. How can I prevent the P0ACE code from returning on my 2018 GMC Sierra?
Regular maintenance, inspecting the battery system during servicing, and addressing wiring or connector issues promptly can help prevent this code from recurring.
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