Easy one-page printout for the garage or repair shop
This summary uses the existing diagnostic information shown in full below.
This code means there's a problem with the safety system that checks if the high-voltage parts of your car are safely connected. Imagine it like a safety switch that makes sure everything is plugged in correctly.
The P1AFD code indicates an issue with the high voltage system interlock circuit, which is responsible for ensuring that all high-voltage components are properly connected and safe to operate.
The high voltage system interlock circuit is a safety feature in electric and hybrid vehicles. It ensures that all high-voltage components, such as the battery and motor, are securely connected. If the circuit detects a high input or low output, it triggers the P1AFD code, indicating a potential disconnection or fault in the circuit.
• Check engine light illuminated
• Vehicle may not start
• Reduced performance in electric mode
• Faulty interlock circuit wiring
• Damaged or loose connectors
• Malfunctioning high voltage components
Interlock Circuit: A safety system that ensures all high-voltage components are securely connected.
High Voltage: Electrical systems in a vehicle that operate at a higher voltage than standard 12V systems.
• Inspect interlock circuit wiring for damage
• Check all connectors for secure attachment
• Test high voltage components for faults
• Repair or replace damaged wiring
• Secure or replace loose connectors
• Replace faulty high voltage components
• Multimeter
• OBD-II scanner
• High voltage safety gloves
$200 - $600
Moderate
• Chevrolet Volt
• Nissan Leaf
• Toyota Prius
• Regular inspection of high voltage components
• Ensure connectors are securely fastened
• Routine maintenance checks
Electrical System Issue
• Avoid driving until the issue is resolved
• Consult a professional mechanic
• Do not attempt repairs without proper knowledge
Repairs may be covered under the vehicle's high-voltage system warranty. Check with your dealer.
This code has become more common with the rise of hybrid and electric vehicles, highlighting the importance of high-voltage safety systems.
High – This issue affects the safety and operation of your vehicle's high-voltage system.
Working with high-voltage systems can be dangerous. Always follow safety protocols and consult a professional.
• Vehicle in park mode
• Battery fully charged
The high voltage system interlock circuit is typically located near the battery or high voltage junction box.
Q: Can I drive my car with a P1AFD code?
A: It's not recommended to drive with this code as it indicates a potential safety issue with the high-voltage system.
Q: How do I reset the P1AFD code?
A: After repairs, use an OBD-II scanner to clear the code. If the issue persists, further diagnosis is needed.
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