Easy one-page printout for the garage or repair shop
This summary uses the existing diagnostic information shown in full below.
The car's computer is saying that the power going to a part of the electric motor is too weak, like a flashlight with dying batteries.
The control module for Drive Motor 'B' is not receiving enough voltage from the 14V power supply, which can affect its operation.
This code indicates that the 14V power supply circuit for the Drive Motor 'B' control module is below the required voltage threshold for proper operation. This can cause the control module to malfunction or shut down, affecting the vehicle's performance.
• Reduced vehicle performance
• Warning light on the dashboard
• Intermittent or no power to Drive Motor 'B'
• Faulty 14V power supply circuit
• Damaged wiring or connectors
• Defective Drive Motor 'B' control module
Control Module: A computer in the car that manages specific functions.
Voltage: The electrical potential difference, like pressure in a water hose.
• Check the 14V power supply circuit for voltage output.
• Inspect wiring and connectors for damage or corrosion.
• Test the Drive Motor 'B' control module for faults.
• Repair or replace damaged wiring or connectors.
• Replace the 14V power supply circuit if faulty.
• Replace the Drive Motor 'B' control module if necessary.
• Multimeter
• OBD-II scanner
• Basic hand tools
$200 - $800
Moderate
• Chevrolet Volt
• Nissan Leaf
• Toyota Prius
• Regular maintenance checks
• Ensure battery health is monitored
• Inspect wiring and connectors periodically
Electrical Circuit Issue
• Do not ignore warning lights on the dashboard.
• Seek professional help if unsure about the repairs.
Check with the vehicle manufacturer for warranty coverage on electrical components.
This code is commonly associated with hybrid and electric vehicles where the drive motor control modules are critical for operation.
Moderate – It should be addressed soon to prevent potential performance issues.
Driving with this issue may lead to reduced performance or further damage to the vehicle.
• Vehicle in 'on' position
• Battery fully charged
The Drive Motor 'B' control module is typically located near the vehicle's electric motor assembly.
Q: Can I drive my car with this code?
A: It's not recommended, as it may lead to reduced performance or further damage.
Q: How do I reset the code?
A: After repairs, use an OBD-II scanner to clear the code. If it returns, further diagnosis is needed.
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.