P0AE9 2017 GMC Sierra Code - Hybrid/EV Battery Temperature Sensor 4 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
- P0AE9 2017 GMC Sierra indicates Hybrid/EV Battery Temperature Sensor 4 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.
Code P0AE9 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 difference between a single battery temperature sensor and an average of the other battery temperature sensors is greater than 25°C (45°F).
What are the Possible Causes of the DTC P0AE9 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 P0AE9 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 P0AE9 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.
Need more information about the P0AE9 2017 GMC Sierra code?
Need more information on how to fix the P0AE9 2017 GMC Sierra code? Get Access to Factory Service Manuals
Need Help with the Code?
Get the P0AE9 2017 GMC Sierra code diagnosed by a professional: Find a repair shop in your area
Frequently Asked Questions about P0AE9 2017 GMC Sierra Code
1. What does the OBDII code P0AE9 mean on a 2017 GMC Sierra?
The P0AE9 code indicates an issue with Hybrid/EV Battery Temperature Sensor 4's performance, signaling that the sensor is not operating within its expected range.
2. What are the common symptoms of the P0AE9 code?
Symptoms may include the check engine light turning on, reduced power or efficiency in the hybrid/EV system, and potential overheating of the battery pack.
3. What causes the P0AE9 code to appear?
Common causes include a faulty temperature sensor, damaged wiring or connectors, battery pack overheating, or a malfunction in the hybrid battery control module.
4. Can I drive my 2017 GMC Sierra with the P0AE9 code?
It’s not recommended to continue driving with this code, as it could lead to battery damage or reduced hybrid system performance.
5. How is the P0AE9 code diagnosed?
A technician will use a scan tool to confirm the code, inspect the battery temperature sensor and wiring, and check for abnormalities in the hybrid battery system.
6. How do you fix the P0AE9 code?
Repairs may involve replacing the faulty temperature sensor, repairing damaged wiring or connectors, or addressing issues with the battery control module.
7. How much does it cost to fix the P0AE9 code on a 2017 GMC Sierra?
The cost depends on the specific issue but typically ranges between $150 and $500, including parts and labor.
8. Can a faulty Hybrid/EV Battery Temperature Sensor 4 drain the battery?
Yes, if the sensor provides inaccurate readings, it can cause improper battery management, potentially leading to quicker depletion or overheating.
9. Is the P0AE9 code specific to GMC Sierra hybrids?
No, this code can appear in other hybrid or EV models that use similar systems, but the diagnostics and repairs are tailored to the specific vehicle.
10. How can I prevent the P0AE9 code from recurring?
Regular maintenance of the hybrid battery system, inspecting wiring for damage, and promptly addressing temperature-related warnings can help prevent this code.
Discuss the causes and fixes for P0AE9 2017 GMC Sierra OBDII Code
Code P0AE9 2017 GMC Sierra comments
No comments found for this page.
Fix Your Car Smarter
Try the New AutoCodes App!
Get complete OBDII diagnostics, repair solutions, and cost estimates, plus AI chat support on demand.
