ezOBD2 - Free OBD2 Code Lookup and Check Engine Light Diagnostic Tool

Find Your OBD2 Code Fast

Type the code from your scanner to get causes, symptoms, and fixes.

Code P1C80

Quick reference

P1C80 at a glance

Plain-language meaning
This code means that a sensor in your car's charging system is not working properly. It helps monitor the temperature of a part that changes electricity for your car's battery, and it's saying the temperature reading is too low.
Urgency
Moderate – While the vehicle may still operate, efficiency and safety could be compromised.
Difficulty
Moderate
System
Sensor Issue
Tools mentioned
OBD-II scanner, Multimeter, Screwdrivers, Wiring repair kit

This summary uses the existing diagnostic information shown in full below.

Laymans terms

This code means that a sensor in your car's charging system is not working properly. It helps monitor the temperature of a part that changes electricity for your car's battery, and it's saying the temperature reading is too low.

Explanation

The P1C80 code indicates an issue with the temperature sensor circuit for the resonant inductor in the DC/DC converter of the universal charger extension control module. The sensor is reporting a low voltage, suggesting it might not be reading the temperature correctly.

Technical description

The DC/DC converter in the universal charger extension control module uses a resonant inductor to help convert electrical energy efficiently. The temperature sensor monitors the inductor's temperature to ensure it operates within safe limits. A 'circuit low' signal means the sensor is sending a lower than expected voltage to the control module, which could indicate a fault in the sensor or its wiring.

Symptoms

• Check engine light illuminated

• Reduced charging efficiency

• Possible overheating of the DC/DC converter

• Unusual noises from the charging system

Common Causes

• Faulty temperature sensor

• Damaged or corroded wiring or connectors

• Faulty DC/DC converter

• Issues with the control module

Glossary

DC/DC Converter: A device that converts direct current (DC) from one voltage level to another.

Resonant Inductor: A component in the DC/DC converter that helps in energy conversion efficiently.

Diagnosis steps

• Use an OBD-II scanner to confirm the code.

• Inspect the wiring and connectors for damage or corrosion.

• Test the temperature sensor with a multimeter.

• Check the DC/DC converter for proper operation.

Repair procedures

• Replace the faulty temperature sensor.

• Repair or replace damaged wiring or connectors.

• Replace the DC/DC converter if necessary.

• Reset the error code and test the system.

Tools required

• OBD-II scanner

• Multimeter

• Screwdrivers

• Wiring repair kit

Estimated repair cost

$150 - $500

Difficulty level

Moderate

Commonly affected vehicles

• Chevrolet Volt

• Nissan Leaf

• Toyota Prius

Preventive measures

• Regular maintenance of the charging system

• Periodic inspection of wiring and connectors

• Ensure proper ventilation of the charging components

Error code type

Sensor Issue

User experience recommendations

• Avoid driving long distances until the issue is resolved.

• Have the vehicle inspected by a professional technician.

Warranty information

Check with your vehicle manufacturer for warranty coverage on electrical components.

Historical data

This code has been associated with early models of hybrid and electric vehicles as they incorporate complex charging systems.

Urgency level

Moderate – While the vehicle may still operate, efficiency and safety could be compromised.

Testing conditions

• Vehicle in 'ready' mode

• Ambient temperature within normal operating range

Component location

The temperature sensor is located within the DC/DC converter assembly, typically near the vehicle's battery or charging system.

FAQs

Q: Can I drive with the P1C80 code?
A: It's not recommended as it may affect your vehicle's charging efficiency and safety.

Q: How do I reset the P1C80 code?
A: After repairs, use an OBD-II scanner to clear the code and verify the fix.

Optional diagnostic gear

Tools that may help diagnose P1C80

THINKCAR ThinkScan Bidirectional diagnostic tool illustration

High-End · Full-system diagnostics

THINKCAR ThinkScan Bidirectional

A full-system bidirectional platform aimed at advanced DIY users and professional diagnostic workflows.

Network faults often require full-system access instead of a generic code reader alone.

View on Amazon
Klein Tools MM325 diagnostic tool illustration

Universal · Digital multimeter

Klein Tools MM325

A solid entry-level multimeter for voltage, continuity, resistance, and basic electrical troubleshooting.

Helpful for checking voltage drops, grounds, and basic circuit health when modules are not communicating.

View on Amazon
WORKPRO Wiring Repair Kit diagnostic tool illustration

Universal · Wire connectors and repair kit

WORKPRO Wiring Repair Kit

Useful when diagnosis points toward damaged wiring, corroded terminals, or connector repairs.

Useful if diagnosis points toward damaged connectors, wiring, or terminal repairs.

View on Amazon

These are optional diagnostic tools, not guaranteed fixes. As an Amazon Associate I earn from qualifying purchases.

Source: ezOBD2 diagnostic database
🌙