Easy one-page printout for the garage or repair shop
This summary uses the existing diagnostic information shown in full below.
This code means that a sensor that checks the temperature of a part in your car's electric motor system is not working right. It's like a thermometer that's not showing the right temperature.
The P0AEF code indicates that the drive motor inverter temperature sensor 'A' is reporting a lower than expected voltage, suggesting a possible issue with the sensor or its circuit.
The drive motor inverter temperature sensor monitors the temperature of the inverter, which is a component that converts DC electricity from the battery to AC electricity for the electric motor. A 'circuit low' code means the sensor is sending a signal that is lower than the expected range, which could be due to a faulty sensor, a wiring issue, or a problem with the inverter itself.
• Check Engine Light is on
• Reduced vehicle performance
• Possible overheating of the inverter
• Faulty drive motor inverter temperature sensor
• Wiring issues such as open or short circuits
• Faulty inverter or control module
Inverter: A device that converts direct current (DC) to alternating current (AC).
Sensor: A device that detects or measures a physical property and records, indicates, or otherwise responds to it.
• Use a scan tool to verify the code and check for other related codes.
• Inspect the wiring and connectors for damage or corrosion.
• Test the temperature sensor for proper operation using a multimeter.
• Replace the drive motor inverter temperature sensor if faulty.
• Repair or replace damaged wiring or connectors.
• Replace the inverter if necessary.
• OBD-II scan tool
• Multimeter
• Basic hand tools
$200 - $600
Moderate
• Toyota Prius
• Chevrolet Volt
• Nissan Leaf
• Regular maintenance and inspection of electrical components
• Avoid overheating the vehicle's electric system
• Ensure proper cooling system operation
Sensor Issue
• Do not ignore the Check Engine Light.
• Have the vehicle inspected by a professional if unsure.
• Monitor vehicle performance for any unusual changes.
Check with the vehicle manufacturer for warranty coverage on hybrid or electric powertrain components.
This code is commonly associated with hybrid and electric vehicles and has become more prevalent as these vehicles have become more popular.
Moderate – While the vehicle may still be drivable, ignoring this issue could lead to more significant problems or reduced performance.
Driving with a malfunctioning temperature sensor can lead to overheating and potential damage to the vehicle's electric components.
• Vehicle at operating temperature
• Engine running
The drive motor inverter temperature sensor is typically located near or on the inverter assembly, which is often found in the engine compartment.
Q: Can I drive with a P0AEF code?
A: It's possible to drive, but it's not recommended as it could lead to further damage.
Q: How do I reset the Check Engine Light after repairs?
A: Use an OBD-II scan tool to clear the code after confirming the repair is successful.
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