Easy one-page printout for the garage or repair shop
This summary uses the existing diagnostic information shown in full below.
This code means the computer that controls part of the electric motor in your car is having trouble remembering important information.
The EEPROM (Electrically Erasable Programmable Read-Only Memory) in the control module for Drive Motor 'B' is not functioning correctly, causing errors in data storage or retrieval.
The P1E40 code is triggered when the control module for Drive Motor 'B' detects an error in the EEPROM. This memory is crucial for storing configuration and calibration data necessary for the motor's operation. An error here can lead to improper motor function.
• Check Engine Light is on
• Reduced vehicle performance
• Inconsistent motor operation
• Corrupted EEPROM data
• Faulty control module
• Electrical issues such as poor connections or damaged wiring
EEPROM: Electrically Erasable Programmable Read-Only Memory
OBD-II: On-Board Diagnostics, Second Generation
• Use an OBD-II scanner to confirm the code.
• Inspect the wiring and connections to the control module.
• Check for any software updates or recalls related to the control module.
• Reprogram or replace the EEPROM in the control module.
• Repair or replace any damaged wiring or connectors.
• Replace the control module if necessary.
• OBD-II scanner
• Multimeter
• Screwdriver set
$200 - $1000
Difficult
• Chevrolet Volt
• Chevrolet Bolt
• Cadillac ELR
• Regularly update vehicle software.
• Ensure all electrical connections are secure.
• Perform routine maintenance checks.
Control Module Issue
• Avoid driving the vehicle until repaired to prevent further damage.
• Consult a professional mechanic for an accurate diagnosis.
Check with the vehicle manufacturer for warranty coverage on control module repairs.
This code has been associated with early electric and hybrid vehicles where control module errors were more prevalent.
High – Immediate attention is recommended to avoid potential damage to the electric motor.
Driving with this error can lead to safety issues and potential legal liabilities if the vehicle malfunctions on the road.
• Vehicle at operating temperature
• Stable electrical system voltage
The control module for Drive Motor 'B' is typically located near the motor or within the main electronic control unit.
Q: Can I drive with a P1E40 code?
A: It's not recommended as it may lead to further damage or safety issues.
Q: How can I clear the P1E40 code?
A: Clearing the code requires addressing the underlying issue, which may involve reprogramming or replacing the control module.
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