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 has detected a problem with the sensor that measures the current (electricity flow) in a part of the car's charging system. It's like if your phone charger wasn't working right because the plug wasn't detecting how much power it needed.
The P1C71 code indicates a low signal from the current sensor in the DC/DC converter circuit, which is part of the vehicle's charging system.
The Universal Charger Extension Control Module monitors the current flow through the DC/DC converter. If the sensor detects a current level that is lower than the expected range, it triggers the P1C71 code. This could affect the vehicle's ability to charge its battery efficiently.
• Check Engine Light is on
• Battery not charging properly
• Reduced vehicle performance
• Faulty DC/DC converter current sensor
• Wiring issues such as shorts or opens in the circuit
• 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 the flow of electric current.
• Scan the vehicle for codes and note any other related codes.
• Inspect the wiring and connectors related to the DC/DC converter current sensor.
• Test the DC/DC converter current sensor for proper function.
• Repair or replace damaged 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
• Regular maintenance checks on the charging system
• Ensure all electrical connections are secure and clean
• Avoid overloading the vehicle's electrical system
Sensor Issue
• Avoid using high electrical loads until the issue is resolved.
• Consult a professional mechanic for accurate diagnosis and repair.
Check if the vehicle's warranty covers electrical system issues.
This code has been reported in vehicles with hybrid or electric systems, indicating a common issue with the charging system's sensors.
Moderate – Should be addressed to prevent battery charging issues.
Driving with a malfunctioning charging system can lead to battery failure and potential safety hazards.
• Vehicle in 'On' position
• Battery at normal operating temperature
The DC/DC converter current sensor is typically located near the vehicle's battery or charging system components.
Q: Can I drive with a P1C71 code?
A: It's not recommended as it may lead to battery charging issues and reduced vehicle performance.
Q: How do I reset the P1C71 code?
A: Fix the underlying issue and use an OBD-II scanner to clear the code.
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