Easy one-page printout for the garage or repair shop
This summary uses the existing diagnostic information shown in full below.
This means that the car's computer is getting a signal that the temperature sensor for the battery pack is too low. It's like the thermometer for the car's battery is not working right.
The P0AAE code indicates that the voltage signal from the battery pack air temperature sensor is lower than the expected range.
The Hybrid/EV Battery Pack Air Temperature Sensor monitors the temperature of the battery pack to ensure it operates within a safe range. If the sensor's circuit sends a voltage signal that is too low, the vehicle's control module will trigger the P0AAE code. This could be due to a faulty sensor, wiring issues, or a problem with the control module itself.
• Check Engine Light is on
• Reduced vehicle performance
• Battery overheating warning
• Faulty battery pack air temperature sensor
• Damaged or corroded wiring/connectors
• Faulty control module
OBD-II: On-Board Diagnostics, a standardized system for vehicle self-diagnostics.
Voltage: An electrical measurement that indicates the pressure of electric current.
• Use an OBD-II scanner to confirm the code.
• Inspect the battery pack air temperature sensor and its wiring for damage.
• Test the sensor's voltage and resistance.
• Replace the faulty temperature sensor.
• Repair or replace damaged wiring/connectors.
• Reprogram or replace the control module if necessary.
• OBD-II scanner
• Multimeter
• Screwdriver set
$150 - $400
Moderate
• Toyota Prius
• Chevrolet Volt
• Nissan Leaf
• Regularly inspect battery pack components.
• Ensure proper ventilation for the battery pack.
• Perform routine maintenance checks.
Sensor Issue
• Avoid driving the vehicle aggressively until the issue is resolved.
• Schedule a service appointment with a qualified technician.
Check with your vehicle manufacturer for specific warranty coverage on hybrid/EV components.
This code has been more common in older hybrid/EV models due to aging sensors and wiring.
Moderate – Address the issue soon to prevent potential battery damage.
Driving with a malfunctioning battery temperature sensor can lead to battery damage or reduced performance.
• Vehicle must be in 'Ready' mode.
• Battery pack should be at operating temperature.
The battery pack air temperature sensor is typically located within or near the battery pack, often in the rear of the vehicle.
Q: Can I drive with the P0AAE code?
A: It's not recommended to drive for extended periods with this code, as it could lead to battery damage.
Q: How do I reset the P0AAE code?
A: After repairs, use an OBD-II scanner to clear the code. If the issue persists, further diagnosis is needed.
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