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 car's computer thinks the temperature sensor for the electric motor is not working right. It's like a thermometer that tells the car how hot the motor is, and it might be saying it's too cold when it's not.
The P0A2C code indicates that the signal from the temperature sensor for Drive Motor A is lower than expected, suggesting a potential issue with the sensor or its circuit.
The Drive Motor A Temperature Sensor monitors the temperature of the electric motor. If the sensor signal is lower than the manufacturer-specified range, the Engine Control Module (ECM) triggers the P0A2C code. This could be due to a short circuit, a faulty sensor, or wiring issues.
• Check Engine Light is on
• Possible reduced performance of the electric motor
• Potential overheating of the motor without warning
• Faulty Drive Motor A Temperature Sensor
• Short circuit in the sensor wiring
• Poor electrical connection at the sensor
ECM: Engine Control Module
OBD-II: On-Board Diagnostics, Second Generation
• 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 Drive Motor A Temperature Sensor if faulty.
• Repair or replace damaged wiring or connectors.
• Clear the code and test drive to ensure the issue is resolved.
• OBD-II Scanner
• Multimeter
• Basic hand tools
$150 - $400
Moderate
• Toyota Prius
• Chevrolet Volt
• Nissan Leaf
• Regularly inspect and maintain the vehicle's electrical system.
• Ensure proper cooling system maintenance.
• Avoid overloading the vehicle's electrical systems.
Sensor Issue
• Do not ignore the Check Engine Light.
• Have the vehicle inspected by a professional if unsure.
• Avoid driving aggressively until the issue is resolved.
Check with your vehicle manufacturer as some emissions-related components may be covered under warranty.
This code is more common in hybrid and electric vehicles due to their reliance on electric motors and associated sensors.
Moderate – It should be addressed soon to prevent potential damage to the electric motor.
Driving with a faulty temperature sensor may lead to overheating and damage to the motor, which could pose safety risks.
• Vehicle should be at operating temperature.
• Ensure the battery is fully charged.
The Drive Motor A Temperature Sensor is typically located near the electric motor, often integrated into the motor assembly.
Q: What happens if I ignore this code?
A: Ignoring this code could lead to motor overheating and potential damage, as the vehicle may not accurately monitor motor temperature.
Q: Can I drive my car with this code?
A: While the car may still drive, it's best to have it checked soon to avoid potential damage to the motor.
High-End · Full-system diagnostics
A full-system bidirectional platform aimed at advanced DIY users and professional diagnostic workflows.
Network faults often require full-system access instead of a generic code reader alone.
View on Amazon
Universal · Digital multimeter
A solid entry-level multimeter for voltage, continuity, resistance, and basic electrical troubleshooting.
Helpful for checking voltage drops, grounds, and basic circuit health when modules are not communicating.
View on Amazon
Universal · Wire connectors and repair kit
Useful when diagnosis points toward damaged wiring, corroded terminals, or connector repairs.
Useful if diagnosis points toward damaged connectors, wiring, or terminal repairs.
View on AmazonThese are optional diagnostic tools, not guaranteed fixes. As an Amazon Associate I earn from qualifying purchases.