Easy one-page printout for the garage or repair shop
This summary uses the existing diagnostic information shown in full below.
This code means there's a problem with the sensor that checks the voltage for part of the car's electric motor system. It's like a thermometer for the car's power, and it's not working right.
The P0E8C code is triggered when the powertrain control module (PCM) detects an issue with the voltage sensor circuit for the drive motor A inverter.
The drive motor A inverter voltage sensor B circuit monitors the voltage levels within the inverter that controls the electric drive motor. If the sensor detects a voltage outside of the expected range, it sends a signal to the PCM, which then stores the P0E8C code.
• Check Engine Light is on
• Reduced vehicle performance
• Unusual noises from the motor
• Possible stalling
• Faulty voltage sensor
• Wiring issues such as shorts or open circuits
• Malfunctioning inverter
• PCM issues
PCM: Powertrain Control Module
Inverter: A device that converts DC to AC power for the electric motor
• Use an OBD-II scanner to confirm the code
• Inspect the wiring and connectors for damage
• Test the voltage sensor for proper operation
• Check the inverter for faults
• Replace the faulty voltage sensor
• Repair or replace damaged wiring
• Replace the inverter if necessary
• Reprogram or replace the PCM if needed
• OBD-II scanner
• Multimeter
• Basic hand tools
$200 - $1000 depending on the exact issue
Moderate
• Toyota Prius
• Chevrolet Volt
• Nissan Leaf
• Regular maintenance checks
• Ensure proper electrical connections
• Avoid overloading the vehicle's electrical system
Sensor Issue
• Do not ignore the Check Engine Light
• Have the vehicle inspected by a professional
• Avoid driving the vehicle until repaired
Check with the vehicle manufacturer for warranty coverage on electrical components.
This code has been more common in hybrid and electric vehicles as they age.
Moderate – It should be addressed soon to prevent further issues.
Ignoring this issue can lead to reduced vehicle performance and potential safety hazards.
• Vehicle must be in a safe, stationary position
• Ensure the battery is fully charged
The voltage sensor is typically located near the inverter assembly in the vehicle's engine compartment.
Q: Can I drive with a P0E8C code?
A: It's not recommended to drive with this code as it can lead to reduced performance and potential safety issues.
Q: How can I prevent this code from appearing?
A: Regular maintenance and ensuring all electrical connections are secure can help prevent this code.
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