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 the car's computer found a problem with one of the sensors that checks the temperature of the battery in a hybrid or electric vehicle. It's like a thermometer for the battery, and it's not working right.
The P0AE8 code indicates an issue with the circuit of the temperature sensor labeled 'D' in the hybrid or electric vehicle's battery system. This sensor helps monitor the battery's temperature to ensure it operates safely.
The P0AE8 code is triggered when the Powertrain Control Module (PCM) or Battery Energy Control Module (BECM) detects a malfunction in the temperature sensor circuit labeled 'D' for the hybrid or electric vehicle's battery pack. This sensor is crucial for monitoring the battery's thermal state to prevent overheating and ensure optimal performance.
• Illuminated check engine light
• Reduced fuel efficiency
• Possible overheating of the battery
• Faulty battery temperature sensor
• Damaged or corroded wiring/connectors
• Faulty Battery Energy Control Module (BECM)
PCM: Powertrain Control Module
BECM: Battery Energy Control Module
• Use an OBD-II scanner to confirm the code.
• Inspect the wiring and connectors for damage or corrosion.
• Test the battery temperature sensor for proper operation.
• Replace the faulty battery temperature sensor.
• Repair or replace damaged wiring/connectors.
• Replace the Battery Energy Control Module if necessary.
• OBD-II scanner
• Multimeter
• Basic hand tools
$150 - $400
Moderate
• Toyota Prius
• Chevrolet Volt
• Nissan Leaf
• Regular maintenance checks on the battery system.
• Ensure connectors and wiring are free from corrosion.
• Monitor battery performance regularly.
Sensor Issue
• Do not ignore the check engine light.
• Visit a qualified technician for diagnosis and repair.
• Avoid using the vehicle if overheating is suspected.
Check with the vehicle manufacturer for warranty coverage on hybrid/EV components.
This code has become more common with the increase in hybrid and electric vehicles, highlighting the importance of battery management systems.
Moderate – While the vehicle may still operate, ignoring this issue can lead to battery damage.
Driving with a malfunctioning battery temperature sensor can lead to safety hazards due to potential battery overheating.
• Vehicle at operating temperature
• Battery under load conditions
The battery temperature sensor is typically located within the battery pack of the hybrid or electric vehicle.
Q: Can I drive my car with a P0AE8 code?
A: It's not recommended to drive for extended periods with this code, as it can lead to battery overheating.
Q: How do I reset the P0AE8 code?
A: After repairs, the code can be reset using an OBD-II scanner. However, ensure the issue is resolved first.
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