Easy one-page printout for the garage or repair shop
This summary uses the existing diagnostic information shown in full below.
The car's battery has a switch that is supposed to close to let electricity flow. If it's stuck open, the car can't use the battery power properly.
This code indicates that the contactors, which are switches that control the flow of electricity from the hybrid or electric vehicle's battery, are not closing as they should.
In hybrid and electric vehicles, contactors are used to connect and disconnect the high-voltage battery from the rest of the vehicle's electrical system. If these contactors are stuck open, it means the high-voltage battery cannot supply power to the vehicle, leading to a loss of propulsion or other electrical issues.
• Vehicle won't start
• Warning light on dashboard
• Reduced or no power from the battery
• Faulty contactor relay
• Wiring issues
• Battery management system malfunction
Contactor: A switch used to control the flow of electricity in high-voltage circuits.
Battery Management System: An electronic system that manages a rechargeable battery, ensuring its safety and efficiency.
• Check for any stored trouble codes.
• Inspect the contactor relay and wiring.
• Test the battery management system.
• Replace the faulty contactor relay.
• Repair or replace damaged wiring.
• Update or repair the battery management system.
• OBD-II scanner
• Multimeter
• Wiring diagram
$200 - $600
Moderate
• Chevrolet Volt
• Nissan Leaf
• Toyota Prius
• Regular maintenance checks
• Ensure proper electrical connections
• Avoid extreme temperature exposure
Electrical Issue
• Do not attempt to drive the vehicle until repaired.
• Consult with a certified hybrid/EV technician.
This issue may be covered under the vehicle's hybrid/EV system warranty. Check with your manufacturer.
This code has been more prevalent with the increase in hybrid and electric vehicle usage, highlighting the importance of maintaining electrical systems.
High – This issue can prevent the vehicle from operating, requiring immediate attention.
Driving with this issue can result in loss of power and potential safety hazards. It is advisable to address this promptly.
• Vehicle in 'Ready' mode
• Battery charged
The contactors are typically located near the high-voltage battery, often in the battery pack itself.
Q: Can I drive my car with this code?
A: No, it's not safe to drive with this code as it can lead to a sudden loss of power.
Q: Is this a common problem?
A: It can occur in older hybrid/EV models or if maintenance is neglected.
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A solid entry-level multimeter for voltage, continuity, resistance, and basic electrical troubleshooting.
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