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 has detected a problem with the sensor that measures how much electricity is going to one of the car's electric motors. It's like if a sensor in your toy car said too much battery power was going to the motor.
The P0A58 code is triggered when the vehicle's control module detects a high voltage condition in the current sensor circuit for Drive Motor B.
The Drive Motor B Current Sensor monitors the electrical current flowing to the vehicle's second drive motor. If the sensor detects a voltage level that is higher than expected, it sends this information to the vehicle's control module, which then triggers the P0A58 code. This could indicate a short circuit, a faulty sensor, or an issue with the wiring.
• Check Engine Light is on
• Reduced vehicle performance
• Unusual noises from the electric motor
• Faulty Drive Motor B current sensor
• Short circuit in the sensor wiring
• Faulty control module
Drive Motor: An electric motor that powers the vehicle.
Current Sensor: A device that measures the flow of electric current.
• Use an OBD-II scanner to confirm the code.
• Inspect the wiring and connectors for damage or corrosion.
• Test the Drive Motor B current sensor for proper operation.
• Replace the Drive Motor B current sensor if faulty.
• Repair or replace damaged wiring and connectors.
• Replace the control module if necessary.
• OBD-II scanner
• Multimeter
• Basic hand tools
$200 - $600
Moderate
• Toyota Prius
• Chevrolet Volt
• Nissan Leaf
• Regularly inspect and maintain electrical connections.
• Avoid exposure to excessive moisture and contaminants.
• Follow recommended service intervals for hybrid systems.
Sensor Issue
• Do not ignore the warning light; get it checked soon.
• Drive cautiously until the issue is resolved.
Check with the vehicle manufacturer for specific warranty coverage on hybrid components.
This code is commonly seen in hybrid and electric vehicles due to their complex electrical systems.
Moderate – While the vehicle may still operate, ignoring the issue could lead to further damage.
Operating a vehicle with a known issue in the electrical system can be unsafe and may not comply with emissions regulations.
• Vehicle in 'Ready' mode
• Drive motor operating
The Drive Motor B current sensor is typically located near the vehicle's electric motor or integrated into the motor control unit.
Q: Can I drive my car with a P0A58 code?
A: It's possible, but not recommended as it could lead to further damage.
Q: How do I reset the P0A58 code?
A: After repairs, use an OBD-II scanner to clear the code, but ensure the issue is fixed first.
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.