Easy one-page printout for the garage or repair shop
This summary uses the existing diagnostic information shown in full below.
This means that the car's battery is getting too much electricity when it's being charged, which can be bad for the battery.
The P1C04 code is triggered when the voltage of the hybrid or electric vehicle's battery pack exceeds the expected range during charging.
The vehicle's control module monitors the charging voltage of the hybrid/EV battery pack. If it detects that the voltage is higher than the specified limit, it triggers the P1C04 code. This could indicate a problem with the charging system or the battery itself.
• Warning light on the dashboard
• Reduced battery performance
• Possible overheating of the battery
• Faulty battery management system
• Defective voltage sensor
• Issues with the charging system
OBD-II: On-Board Diagnostics, a standardized system for vehicle diagnostics.
Battery Management System: A system that manages the charging and discharging of a battery.
• Use an OBD-II scanner to confirm the code.
• Inspect the battery management system for faults.
• Check the voltage sensor for proper operation.
• Replace the faulty voltage sensor.
• Repair or replace the battery management system.
• Check and repair the charging system.
• OBD-II scanner
• Multimeter
• Diagnostic software
$200 - $1000
Moderate
• Toyota Prius
• Chevrolet Volt
• Nissan Leaf
• Regular maintenance of the battery system
• Ensure proper charging practices
• Use manufacturer-recommended charging equipment
Battery/Charging System Issue
• Avoid driving the vehicle until the issue is resolved.
• Consult with a professional technician for diagnosis.
Check with the vehicle manufacturer for battery and charging system warranty coverage.
This code has become more common with the increase in hybrid and electric vehicle usage, highlighting the importance of battery management.
High – It is important to address this issue promptly to avoid potential battery damage.
Ignoring this code could lead to battery damage or reduced vehicle performance, which may not be covered under warranty.
• Vehicle in charging mode
• Battery at a low state of charge
The battery pack is typically located under the vehicle floor or in the trunk area.
Q: Can I drive my car with this code?
A: It's not recommended to drive your car with this code active, as it could lead to battery damage.
Q: How can I prevent this issue?
A: Regular maintenance and proper charging practices can help prevent this issue.
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