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 a part of the car that helps manage the battery's charging system is detecting too much electricity flowing through a sensor.
The P1C72 code is triggered when the Universal Charger Extension Control Module detects a high current reading from the DC/DC Converter Current Sensor Circuit.
The Universal Charger Extension Control Module monitors the current flowing through the DC/DC converter. If it detects a current level that is higher than expected, it triggers the P1C72 code. This could be due to a malfunction in the sensor or an actual overcurrent condition.
• Check Engine Light is on
• Battery charging issues
• Possible reduced vehicle performance
• Faulty DC/DC converter current sensor
• Wiring issues such as shorts or open circuits
• Faulty Universal Charger Extension Control Module
DC/DC Converter: A device that converts direct current (DC) from one voltage level to another.
Current Sensor: A device that detects and measures electric current.
• Use an OBD-II scanner to confirm the code.
• Inspect the wiring and connections to the DC/DC converter current sensor.
• Test the DC/DC converter current sensor for proper operation.
• Repair or replace faulty wiring or connectors.
• Replace the DC/DC converter current sensor if faulty.
• Replace the Universal Charger Extension Control Module if necessary.
• OBD-II scanner
• Multimeter
• Basic hand tools
$150 - $500
Moderate
• Chevrolet Volt
• Nissan Leaf
• Toyota Prius
• Regularly inspect and maintain the vehicle's electrical system.
• Ensure proper charging habits and avoid overloading the electrical system.
• Keep the vehicle's software up to date.
Sensor Issue
• Have the vehicle inspected by a professional if the Check Engine Light is on.
• Avoid driving the vehicle if you notice charging issues until it is repaired.
Repairs may be covered under the vehicle's powertrain warranty if applicable.
This code has been reported in hybrid and electric vehicles due to the complexity of their charging systems.
Moderate – While not immediately dangerous, it could lead to battery charging problems.
Driving with a malfunctioning charging system can lead to reduced performance and potential battery issues.
• Vehicle must be in a state where the charging system is active.
• Ensure the vehicle's battery is not fully charged.
The DC/DC converter current sensor is typically located near the vehicle's battery or charging system.
Q: Can I drive with a P1C72 code?
A: It's not recommended as it may lead to battery charging issues.
Q: How can I prevent this code from appearing?
A: Regular maintenance and avoiding electrical overloads can help prevent this code.
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