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 is a problem with the power going to the electric motor in the car. It's like when a toy's battery isn't connected properly, so the toy doesn't work right.
The vehicle's control module has detected an issue with the isolation of the power supply circuit for Drive Motor 'A'. This could mean a potential short or improper grounding.
P1AF1 indicates that the power supply circuit for Drive Motor 'A' is not properly isolated. This isolation is crucial for preventing electrical shorts and ensuring that the motor receives a stable power supply. The fault could be due to damaged wiring, connectors, or a malfunctioning component within the power supply circuit.
• Warning light on dashboard
• Reduced vehicle performance
• Unusual noises from the drive motor
• Damaged or frayed wiring
• Faulty connectors
• Malfunctioning power supply components
Drive Motor: An electric motor that powers the vehicle.
Circuit Isolation: Ensuring that electrical circuits are separated to prevent shorts.
• Inspect wiring and connectors for damage.
• Check the power supply components for faults.
• Use a multimeter to test circuit isolation.
• Replace damaged wiring or connectors.
• Repair or replace faulty power supply components.
• Ensure proper grounding and isolation of the circuit.
• Multimeter
• Wire strippers
• Screwdrivers
$200 - $500
Moderate
• Chevrolet Volt
• Nissan Leaf
• Toyota Prius
• Regular maintenance checks
• Ensure proper insulation of wiring
• Avoid exposure to extreme conditions
Electrical Circuit Issue
• Do not ignore the warning light.
• Have the vehicle inspected by a professional.
• Avoid driving the vehicle until repaired.
Check with the vehicle manufacturer for warranty coverage on electrical components.
This code has been more common in hybrid and electric vehicles as they rely heavily on electrical systems.
High – This issue can lead to significant vehicle performance problems and potential safety risks.
Driving with this fault may lead to further damage or safety hazards. It is advised to address the issue promptly.
• Vehicle in a safe, stationary position
• Battery fully charged
The power supply circuit for Drive Motor 'A' is typically located near the vehicle's battery or power control module.
Q: Can I drive with a P1AF1 code?
A: It's not recommended as it can lead to further damage or safety issues.
Q: What happens if I ignore this code?
A: Ignoring this code can result in reduced vehicle performance and potential damage to the electric motor.
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.