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 in the car that checks how hot a part of the electric motor system is, is saying the temperature is too high. It's like a thermometer that is reading a temperature higher than expected.
The P0E2B code is triggered when the vehicle's powertrain control module (PCM) detects a high voltage signal from the drive motor inverter temperature sensor. This indicates that the sensor is reading a temperature higher than the expected range.
The drive motor inverter temperature sensor monitors the temperature of the inverter, which is a component that converts DC power from the battery to AC power for the electric motor. If the sensor sends a voltage signal that is higher than the expected range, the PCM interprets this as a 'circuit high' condition and triggers the P0E2B code.
• Check Engine Light is on
• Reduced power or performance
• Overheating warning light
• Faulty drive motor inverter temperature sensor
• Wiring issues such as shorts or open circuits
• Faulty PCM
PCM: Powertrain Control Module, the computer that controls engine and transmission functions.
Inverter: A device that converts DC power to AC power for the electric motor.
• Use an OBD-II scanner to confirm the code.
• Inspect the wiring and connectors to the temperature sensor.
• Test the sensor's resistance and compare it to specifications.
• Replace the drive motor inverter temperature sensor if faulty.
• Repair or replace damaged wiring or connectors.
• Reprogram or replace the PCM if necessary.
• OBD-II scanner
• Multimeter
• Basic hand tools
$150 - $500
Moderate
• Toyota Prius
• Chevrolet Volt
• Nissan Leaf
• Regularly inspect and maintain electrical connections.
• Monitor inverter temperature during operation.
• Use OEM parts for replacements.
Sensor Issue
• Avoid driving the vehicle hard until the issue is resolved.
• Have a professional inspect the system if unsure.
Check with the vehicle manufacturer for warranty coverage on electrical components.
This code has become more common with the increased use of hybrid and electric vehicles, as they rely heavily on inverter systems.
Moderate – It should be addressed soon to avoid potential damage to the inverter or motor.
Driving with this code may lead to reduced vehicle performance and potential overheating, which could be unsafe.
• Engine running
• Vehicle at operating temperature
The drive motor inverter temperature sensor is typically located near the inverter assembly, which is often in the engine bay.
Q: Can I drive with a P0E2B code?
A: It's not recommended to drive for long distances with this code as it may lead to overheating and reduced performance.
Q: How can I reset the P0E2B code?
A: After repairs, the code can be cleared using an OBD-II scanner, but it will return if the underlying issue isn't fixed.
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