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 the temperature of a part called the drive motor inverter is saying it's too hot.
The P1B61 code indicates that the temperature sensor for the drive motor inverter is reporting a temperature that is higher than expected, which could indicate overheating.
The drive motor inverter temperature sensor 'A' monitors the temperature of the inverter, which is responsible for converting DC power from the battery to AC power for the electric motor. If the sensor detects a temperature that exceeds the specified range, the P1B61 code is triggered.
• Check Engine Light is on
• Reduced vehicle performance
• Possible overheating warning
• Faulty temperature sensor
• Wiring issues or poor connections
• Overheating of the drive motor inverter
Inverter: A device that converts DC electricity to AC electricity.
Sensor: A device that detects or measures a physical property and records, indicates, or otherwise responds to it.
• Use an OBD-II scanner to confirm the code.
• Inspect the wiring and connections to the temperature sensor.
• Test the temperature sensor for proper operation.
• Replace the faulty temperature sensor.
• Repair or replace damaged wiring or connectors.
• Ensure the drive motor inverter is not overheating.
• OBD-II scanner
• Multimeter
• Basic hand tools
$100 - $300
Moderate
• Chevrolet Volt
• Nissan Leaf
• Toyota Prius
• Regularly inspect electrical connections.
• Ensure proper cooling system maintenance.
• Monitor vehicle performance for signs of overheating.
Sensor Issue
• Do not ignore the Check Engine Light.
• Have the vehicle inspected by a professional if unsure.
• Avoid driving the vehicle if overheating is suspected.
Check with your vehicle manufacturer or dealership for specific warranty coverage related to sensors.
This code is more common in hybrid and electric vehicles due to their reliance on electric drive systems.
Moderate – Addressing this issue promptly can prevent further damage to the vehicle's electrical system.
Driving with a known issue can lead to safety risks and may void vehicle warranties.
• Vehicle at operating temperature
• Engine running
The drive motor inverter temperature sensor is typically located near the inverter assembly, often in the engine bay.
Q: Can I drive my car with a P1B61 code?
A: It's not recommended to drive the car for long distances with this code, as it may indicate overheating, which can cause damage.
Q: What happens if I ignore this code?
A: Ignoring the code could lead to further damage to the inverter or other electrical components, potentially leading to costly repairs.
Budget · Enhanced code reader
A wired color-screen reader with readiness hotkeys, live data, code definitions, and data logging.
A dependable first-pass scanner for verifying the code and checking live data or readiness monitors.
View on Amazon
Universal · Digital multimeter
A solid entry-level multimeter for voltage, continuity, resistance, and basic electrical troubleshooting.
Helpful for voltage, continuity, and basic electrical checks while narrowing down the fault.
View on Amazon
Universal · Socket set
A practical metric and SAE socket set for many diagnostic teardowns and component replacements.
Useful for common under-hood access and removal work during diagnosis or repair.
View on AmazonThese are optional diagnostic tools, not guaranteed fixes. As an Amazon Associate I earn from qualifying purchases.