P0C3C

Q: Can I keep driving with this code?

The vehicle is usually drivable for short distances, but the problem can worsen or affect emissions. Diagnose and repair as soon as practical. Use the Wrenchify app for a full diagnosis specific to your vehicle.

DC/DC Converter Temperature Sensor A Intermittent/Erratic

High severity

The ECM detects a intermittent/erratic fault on the dc/dc converter temperature sensor a. Reading cannot be used reliably for control.

Common causes

Sensor connector not seated
One of the most commonly reported causes for this code — check this first.
high
Typical part cost: $130-660
Noisy ground reference
A plausible cause — test and verify before replacing parts.
medium
Typical part cost: $130-660
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First things to check

1Confirm the code with a scan tool and check for additional related codes.
2Inspect the relevant sensors, wiring, and connectors for damage or corrosion.

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Related codes

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Frequently asked questions

What does P0C3C mean?

P0C3C means "DC/DC Converter Temperature Sensor A Intermittent/Erratic". It is a generic OBD-II code that points to a fault in the hybrid / ev powertrain.

What are the most common causes of P0C3C?

sensor connector not seated; noisy ground reference; connector with intermittent contact under vibration — these are the most commonly reported causes. Verify with a proper diagnosis before replacing parts, or use the Wrenchify app for a vehicle-specific diagnosis.

Can I keep driving with this code?

This code can put the vehicle into limp or reduced-power mode. Avoid extended driving and have the vehicle diagnosed promptly. Use the Wrenchify app for a full diagnosis specific to your vehicle.

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