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 computer in your car is having trouble reading the voltage from a sensor that helps control the electric motor. It's like when a video game controller keeps disconnecting and reconnecting while you're playing.
The P0D31 code is triggered when the vehicle's powertrain control module (PCM) detects an intermittent or erratic signal from the Drive Motor A Inverter Voltage Sensor A.
This code indicates that the voltage sensor circuit for the drive motor A inverter is experiencing intermittent or erratic readings. This sensor is crucial for monitoring the voltage levels in the inverter, which converts DC power to AC power for the electric motor. Erratic signals can lead to improper motor operation and efficiency loss.
• Check Engine Light is on
• Reduced vehicle performance
• Unusual noises from the electric motor
• Faulty Drive Motor A Inverter Voltage Sensor
• Damaged or corroded wiring/connectors
• Faulty powertrain control module (PCM)
Inverter: A device that converts DC power to AC power.
PCM: Powertrain Control Module, the computer that controls the engine and transmission.
• Use an OBD-II scanner to confirm the code.
• Inspect the wiring and connectors for damage or corrosion.
• Test the voltage sensor for proper operation.
• Repair or replace damaged wiring/connectors.
• Replace the Drive Motor A Inverter Voltage Sensor.
• Reprogram or replace the PCM if necessary.
• OBD-II scanner
• Multimeter
• Basic hand tools
$200 - $600
Moderate
• Toyota Prius
• Chevrolet Volt
• Nissan Leaf
• Regular maintenance checks on electrical systems
• Ensure connectors are clean and secure
• Avoid exposure to extreme temperatures
Sensor Issue
• Avoid driving aggressively until the issue is fixed.
• Have the vehicle checked by a professional mechanic.
This issue may be covered under the vehicle's powertrain warranty. Check with your dealer for more information.
This code has become more common with the increase in hybrid and electric vehicles, as they rely heavily on inverter systems.
Moderate – It is recommended to address this issue soon to avoid potential damage to the electric motor.
Driving with this code may lead to reduced vehicle performance and efficiency. It is advisable to have it diagnosed and repaired promptly.
• Vehicle must be in 'ready' mode.
• Drive the vehicle under normal conditions to replicate the issue.
The Drive Motor A Inverter Voltage Sensor is typically located near the inverter assembly, which is usually found in the engine bay of hybrid and electric vehicles.
Q: Can I drive my car with a P0D31 code?
A: It's possible to drive, but it's not recommended as it may lead to further issues with the electric motor.
Q: How can I prevent this code from appearing?
A: Regular maintenance and ensuring all electrical connections are clean and secure can help prevent this issue.
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