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 is getting a reading that the amount of electricity going from the AC/DC converter is too low, which doesn't make sense. It's like if you expected a big stream of water from a hose, but only a trickle came out.
The AC/DC converter in a vehicle is responsible for converting alternating current (AC) to direct current (DC) to power various components. This code indicates that the current output from the converter is lower than expected, which may suggest a malfunction or a sensor issue.
The P1C3E code is set when the Powertrain Control Module (PCM) detects a current reading from the AC/DC converter that is implausibly low. This could be due to a fault in the converter itself, a wiring issue, or a problem with the sensors monitoring the current.
• Reduced electrical performance
• Warning light on the dashboard
• Possible charging system issues
• Faulty AC/DC converter
• Wiring issues or poor connections
• Faulty current sensor
AC/DC Converter: A device that converts alternating current (AC) to direct current (DC).
PCM: Powertrain Control Module, the vehicle's main computer that controls engine and transmission functions.
• Check for any other related diagnostic trouble codes.
• Inspect the wiring and connections to the AC/DC converter.
• Test the AC/DC converter for proper operation.
• Repair or replace faulty wiring or connections.
• Replace the AC/DC converter if it's malfunctioning.
• Replace the current sensor if it's faulty.
• Multimeter
• OBD-II scanner
• Basic hand tools
$200 - $600
Moderate
• Chevrolet Volt
• Toyota Prius
• Nissan Leaf
• Regular maintenance checks
• Ensure all electrical connections are secure
• Monitor vehicle's electrical system performance
Electrical System Issue
• Have the vehicle inspected by a professional if the warning light appears.
• Avoid using high electrical load devices until the issue is resolved.
Check with the vehicle manufacturer for warranty coverage on electrical components.
This code is more common in hybrid and electric vehicles due to their reliance on AC/DC converters.
Moderate – It should be addressed soon to prevent potential electrical system failures.
Driving with unresolved electrical issues can lead to further damage or safety risks.
• Vehicle in 'ON' position
• Electrical systems active
The AC/DC converter is typically located near the vehicle's battery or under the hood.
Q: Can I drive my car with this code?
A: It's possible to drive, but it's not recommended as it could lead to further electrical issues.
Q: How can I reset the code?
A: You can use an OBD-II scanner to reset the code, but it's important to fix the underlying issue first.
High-End · Full-system diagnostics
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
Universal · Digital multimeter
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
Universal · Wire connectors and 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 AmazonThese are optional diagnostic tools, not guaranteed fixes. As an Amazon Associate I earn from qualifying purchases.