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 there is a problem with one of the electric motors that helps the car move. It's like when one of your toy's motors isn't working right.
The P0A90 code indicates an issue with the performance of the drive motor A, which is a component of the hybrid or electric vehicle's powertrain.
The P0A90 code is triggered when the vehicle's powertrain control module (PCM) detects a performance issue with Drive Motor A. This motor is part of the hybrid or electric drive system, and its performance is critical for the efficient operation of the vehicle. The PCM monitors the motor's speed, torque, and other parameters to ensure it is functioning correctly. If these parameters fall outside of the expected range, the P0A90 code is set.
• Reduced power or acceleration
• Warning light on the dashboard
• Unusual noises from the motor area
• Faulty drive motor A
• Issues with the inverter or converter
• Wiring or connection problems
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 wiring and connections to Drive Motor A.
• Test the drive motor and associated components.
• Repair or replace faulty wiring or connections.
• Replace the drive motor if necessary.
• Service or replace the inverter/converter.
• OBD-II scanner
• Multimeter
• Basic hand tools
$500 - $2000
Moderate
• Toyota Prius
• Chevrolet Volt
• Nissan Leaf
• Regular maintenance of the hybrid system
• Check and secure all electrical connections
• Avoid overloading the vehicle
Engine Performance
• Avoid driving the vehicle until repaired to prevent further damage.
• Consult with a certified hybrid vehicle technician.
Check with your vehicle manufacturer for warranty coverage on hybrid components.
This code has been associated with hybrid vehicles since their introduction, as electric motor performance is critical to their operation.
High – This issue can lead to reduced vehicle performance and should be addressed promptly.
Driving with a malfunctioning drive motor can lead to safety issues. Ensure repairs are conducted by a qualified technician.
• Vehicle in 'Ready' mode
• Monitor motor performance under load
Drive Motor A is typically located near the vehicle's transmission or within the electric drive unit.
Q: Can I drive with a P0A90 code?
A: It's not recommended to drive with this code active, as it can lead to further damage and reduced performance.
Q: Does this code affect fuel efficiency?
A: Yes, a malfunctioning drive motor can reduce the efficiency of a hybrid vehicle.
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