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's a problem with the software that helps control the car's charger. It's like when a computer program has a bug and needs an update.
The P1C40 code indicates an issue with the software or calibration of the Universal Charger Extension Control Module, which is responsible for managing the charging system in the vehicle.
The Universal Charger Extension Control Module is responsible for managing the charging of the vehicle's battery. This code suggests that there is a problem with the software or calibration settings of this module, which could affect the charging process.
• Charging system warning light
• Inconsistent charging performance
• Vehicle not charging properly
• Outdated software version
• Corrupted software data
• Incorrect calibration settings
OBD-II: On-Board Diagnostics, a standardized system for self-diagnostics and reporting in vehicles.
Calibration: The process of adjusting the settings of a device to ensure it operates correctly.
• Check for any software updates available for the control module.
• Inspect the module for any signs of physical damage.
• Verify the calibration settings are correct.
• Update the control module software to the latest version.
• Recalibrate the control module settings.
• Replace the control module if software update and recalibration do not resolve the issue.
• OBD-II scanner
• Diagnostic software
• Calibration tools
$100 - $300
Moderate
• Vehicle 1
• Vehicle 2
• Vehicle 3
• Regularly update vehicle software.
• Perform routine diagnostics.
• Ensure proper calibration during maintenance.
Software/Calibration Issue
• Check for software updates regularly.
• Consult a professional if unsure about software updates.
Check with your vehicle manufacturer for warranty coverage on software issues.
This code has been associated with newer vehicles that rely heavily on software for charging management.
Moderate – It should be addressed soon to ensure proper charging of the vehicle.
Ignoring this code could lead to charging issues, affecting vehicle performance and safety.
• Vehicle in a safe, stationary position.
• Ensure battery is not actively charging.
The Universal Charger Extension Control Module is typically located near the vehicle's battery or charging port.
Q: What happens if I ignore this code?
A: Ignoring this code can lead to improper charging, affecting the vehicle's performance and battery life.
Q: Can I fix this myself?
A: If you are comfortable with updating vehicle software and have the necessary tools, you may attempt it. Otherwise, it's best to consult a professional.
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