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 a temperature sensor in the car's charging system. It's like when a thermometer isn't showing the right temperature, and the car can't tell if things are getting too hot or not.
The P1C84 code indicates an issue with the temperature sensor circuit in the DC/DC converter of the universal charger extension control module. This sensor is responsible for monitoring the temperature of the resonant inductor to ensure it operates within the correct range.
The DC/DC converter in a vehicle's charging system uses a resonant inductor to help convert electrical energy efficiently. The temperature sensor monitors this component to prevent overheating. If the sensor reports values outside the expected range, the system triggers the P1C84 code.
• Check engine light on
• Reduced charging efficiency
• Possible overheating of components
• Faulty temperature sensor
• Wiring issues or poor connections
• Malfunctioning DC/DC converter
DC/DC Converter: A device that converts direct current (DC) from one voltage level to another.
Resonant Inductor: A component in electrical circuits that helps in energy conversion.
• Check the wiring and connections to the temperature sensor.
• Test the temperature sensor for proper operation.
• Inspect the DC/DC converter for faults.
• Replace the faulty temperature sensor.
• Repair or replace damaged wiring or connectors.
• Replace the DC/DC converter if necessary.
• OBD-II scanner
• Multimeter
• Screwdrivers
$100 - $400
Moderate
• Chevrolet Volt
• Nissan Leaf
• Toyota Prius
• Regular maintenance checks
• Ensure proper electrical connections
• Avoid excessive heat exposure
Sensor Issue
• Have the vehicle inspected by a professional.
• Avoid using the charger until the issue is resolved.
Check with the vehicle manufacturer for warranty coverage on the charging system components.
This code has been reported in vehicles with advanced charging systems and hybrid or electric drivetrains.
Moderate – It should be addressed soon to avoid potential damage to the charging system.
Ignoring this issue could lead to further damage and affect the vehicle's charging efficiency.
• Vehicle at operating temperature
• Charging system activated
The temperature sensor is located within the DC/DC converter module, typically found near the vehicle's battery or charging system.
Q: Can I drive my car with the P1C84 code?
A: It's best to have it checked as soon as possible to avoid potential damage.
Q: Will the P1C84 code clear itself?
A: The code may clear if the issue is resolved, but it's recommended to use an OBD-II scanner to confirm.
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