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, which checks how hot a part of the electric motor system is, is not working correctly. It's like a thermometer that isn't reading the temperature right.
The code indicates that the temperature sensor for the drive motor 'B' inverter is reporting a lower than expected voltage, which suggests an issue with the sensor or its circuit.
The P1E23 code is triggered when the powertrain control module (PCM) detects a low voltage signal from the temperature sensor 'C' associated with the drive motor 'B' inverter. This sensor is responsible for monitoring the temperature of the inverter to ensure it operates within safe limits.
• Check Engine Light (CEL) is on
• Reduced vehicle performance
• Overheating warning for the electric motor system
• Faulty temperature sensor
• Wiring issues such as shorts or open circuits
• Faulty PCM or inverter control module
PCM: Powertrain Control Module
Inverter: A device that converts DC electricity to AC electricity
• Use an OBD-II scanner to confirm the code.
• Inspect the wiring and connectors for damage or corrosion.
• Test the temperature sensor for proper operation.
• Replace the faulty temperature sensor.
• Repair or replace damaged wiring or connectors.
• Reprogram or replace the PCM if necessary.
• OBD-II scanner
• Multimeter
• Wrench set
$150 - $500
Moderate
• Chevrolet Volt
• Nissan Leaf
• Toyota Prius
• Regular maintenance and inspection of the electrical system.
• Ensure proper cooling system function.
• Avoid overloading the vehicle's electrical system.
Sensor Issue
• Do not ignore the check engine light.
• Have the vehicle inspected by a professional if you notice performance issues.
• Regularly check and maintain the vehicle's cooling system.
Check with the manufacturer for warranty coverage on powertrain components.
This code is more common in hybrid and electric vehicles due to their reliance on complex electrical systems.
Moderate – While the vehicle may still operate, ignoring this issue can lead to more severe problems.
Driving with a malfunctioning temperature sensor can lead to overheating and potential damage to the vehicle's electric motor system.
• Vehicle at operating temperature
• Use of a diagnostic scanner
The temperature sensor is typically located near the drive motor 'B' inverter, often in the engine bay.
Q: Can I drive with a P1E23 code?
A: It's not recommended to drive for extended periods with this code, as it can lead to overheating and damage.
Q: How can I prevent this code from appearing?
A: Regular maintenance and ensuring the cooling system is functioning properly can help prevent this code.
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