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 that the electric motor is using too much power when it should be coasting or not working hard.
The vehicle's control module monitors the current draw of the drive motor 'B'. If it detects that the current is too high when the motor should be in a free-wheeling state, it triggers this code.
The P1E27 code is set when the Powertrain Control Module (PCM) or the hybrid control module detects an abnormally high current draw from the drive motor 'B' during conditions where the motor should be in a free-wheeling or low-power state. This could indicate an electrical issue or mechanical resistance in the motor or associated components.
• Reduced vehicle performance
• Warning light on the dashboard
• Unusual noises from the drivetrain
• Faulty drive motor 'B'
• Electrical short or wiring issue
• Mechanical resistance in the drivetrain
Drive Motor: An electric motor that powers the vehicle.
Free-Wheeling: A state where the motor is not actively driving the vehicle but is allowed to spin freely.
• Check for any other related codes.
• Inspect the wiring and connections to drive motor 'B'.
• Test drive motor 'B' for proper operation.
• Repair or replace faulty wiring or connectors.
• Replace drive motor 'B' if necessary.
• Address any mechanical resistance issues in the drivetrain.
• OBD-II scanner
• Multimeter
• Basic hand tools
$500 - $1500
Moderate
• Chevrolet Volt
• Nissan Leaf
• Toyota Prius
• Regular maintenance of the electric drive system.
• Routine inspection of electrical connections.
• Ensure proper lubrication of drivetrain components.
Electric Motor Performance
• Avoid driving the vehicle until repaired to prevent further damage.
• Consult with a professional mechanic experienced in hybrid or electric vehicles.
Check with the vehicle manufacturer for warranty coverage on hybrid/electric drive components.
This code has been more commonly reported in early models of hybrid and electric vehicles as they age.
High – This issue can lead to decreased performance and potential damage to the electric drive system.
Driving with this code may result in reduced performance and could be unsafe. Address the issue promptly.
• Vehicle in a free-wheeling state
• Monitoring current draw of drive motor 'B'
Drive motor 'B' is typically located in the vehicle's drivetrain, often near the transmission or axle.
Q: Can I drive my car with this code?
A: It's not recommended as it could lead to further damage or reduced performance.
Q: Is this a common issue?
A: It can be common in older hybrid or electric vehicles, especially if maintenance has been neglected.
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