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 is telling the engine to turn off because there's a problem with one of the electric motors. It's like when you get a warning to stop playing a game because the battery is low.
The code indicates that the vehicle's drive motor 'B' has requested the engine to shut off due to a detected issue, prompting a limp home mode to protect the vehicle.
The P1E51 code is triggered when the hybrid or electric vehicle's control module detects an issue with Drive Motor 'B' that requires the engine to be turned off to prevent damage. This typically activates a limp home mode, allowing the vehicle to be driven at reduced power to a safe location for repairs.
• Reduced vehicle power
• Warning light on the dashboard
• Engine shutting off unexpectedly
• Faulty drive motor 'B'
• Issues with the motor control module
• Electrical connection problems
Drive Motor: An electric motor that propels the vehicle.
Limp Home Mode: A safety feature that limits vehicle performance to prevent damage.
• Check for other related codes.
• Inspect the electrical connections to Drive Motor 'B'.
• Test the motor control module functionality.
• Replace or repair Drive Motor 'B'.
• Fix or replace faulty electrical connections.
• Reprogram or replace the motor control module.
• OBD-II scanner
• Multimeter
• Diagnostic software
$500 - $1500
Difficult
• Chevrolet Volt
• Chevrolet Bolt
• Cadillac ELR
• Regular maintenance of the electric drive system.
• Ensure all software updates are applied.
• Inspect electrical connections periodically.
Electric Motor Performance
• Avoid driving at high speeds until the issue is resolved.
• Schedule a service appointment as soon as possible.
Check with the vehicle manufacturer for warranty coverage on electric drive components.
This code has been more prevalent in hybrid and electric vehicles as they age and components wear out.
High – Immediate attention is required to prevent further damage.
Driving with this code active may lead to unexpected vehicle behavior. It is advised to address the issue promptly.
• Vehicle at operating temperature.
• Drive cycle including acceleration and deceleration phases.
Drive Motor 'B' is typically located near the vehicle's transmission or axle assembly.
Q: Can I drive my car with a P1E51 code?
A: It's not recommended to drive the vehicle for long distances as it may lead to further damage.
Q: What does limp home mode mean?
A: Limp home mode reduces the vehicle's power to allow you to safely drive to a repair facility.
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