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 having trouble keeping track of time for one of the electric motors. It's like when a clock in your house stops working right and doesn't show the correct time.
The vehicle's control module for the drive motor 'B' is not maintaining accurate timing, which can affect motor performance.
The P1E43 code indicates an issue with the timer or clock function within the control module for Drive Motor 'B'. This can lead to synchronization problems and affect the performance of the motor.
• Reduced vehicle performance
• Warning light on the dashboard
• Unusual noises from the motor
• Faulty Drive Motor 'B' Control Module
• Software glitch in the control module
• Wiring issues or poor connections
Control Module: A computer that manages specific functions of the vehicle.
Drive Motor: An electric motor that powers the vehicle.
• Check for any other related codes and address them first.
• Inspect the wiring and connections to the control module.
• Test the control module for proper operation.
• Reprogram or update the control module software.
• Repair or replace any damaged wiring or connectors.
• Replace the Drive Motor 'B' Control Module if faulty.
• OBD-II scanner
• Multimeter
• Diagnostic software
$300 - $1200
Moderate
• Chevrolet Volt
• Chevrolet Bolt EV
• Cadillac ELR
• Regular software updates
• Routine vehicle maintenance
• Check electrical connections periodically
Control Module Performance
• Avoid driving aggressively until the issue is resolved.
• Schedule a diagnostic appointment with a qualified technician.
Check with the manufacturer for warranty coverage on control module issues.
This code has been reported in hybrid and electric vehicles, often related to software or control module faults.
Moderate – While the vehicle may still operate, performance can be affected, and it should be addressed soon.
Ignoring this code could lead to reduced vehicle performance and efficiency. Always address diagnostic codes promptly.
• Vehicle at operating temperature
• Drive cycle completed
The Drive Motor 'B' Control Module is typically located near the drive motor or integrated within the power electronics module.
Q: Can I drive with a P1E43 code?
A: While you may be able to drive, it's best to get it checked soon to avoid further issues.
Q: Does this affect fuel efficiency?
A: Yes, it can affect the efficiency and performance of the vehicle.
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