P0E3F: Charge Status Indicator A Control Circuit Low

P0E3F reports that the output feeding charge status indicator A sits too low in voltage. That light confirms to the owner that the vehicle is charging, and the expected cause is an LED line touching ground. No manufacturer documents P0E3F publicly. GM's Chevrolet Volt tables for 2012 (12OBDG01A) still count this situation under P0D2C: the ground short is looked for while the LED is commanded on, and 40 failing samples out of 50, one every 100 ms, confirm it as Type B. Newer code sets split it off as P0E3F, with P0E40 for the short to voltage and P0D2C left for the open circuit. The charge status light stays dark, so the owner cannot tell at a glance whether charging has started, though the charger itself keeps working.

Medium severity. Can I keep driving?If the car is running normally, drive in moderation to a repair shop. If it loses power or another warning appears, do not continue.

Symptoms

Charge status light stays off during charging
Charging continues normally

Most likely causes

LED supply wire pinched or chafed to ground
Charge status LED shorted internally
Failed driver in the controlling module

What to check, in order

Start with the simplest. You can tick off each step.

Check the battery, connectors, and wiring
With the connector unplugged, check whether the signal wire is making contact with ground.
Read the live data with a scanner
Follow the manufacturer's service manual

Good to know

Repair difficulty: medium

What each character of P0E3F means

P: Powertrain: engine and transmission
0: Generic code: same on every make
E: Subsystem depends on the code range
3F: Specific fault in that system

Frequently asked questions

Can I keep driving with code P0E3F?

If the car is running normally, drive in moderation to a repair shop. If it loses power or another warning appears, do not continue.

What causes code P0E3F?

The most common causes are: lED supply wire pinched or chafed to ground; charge status LED shorted internally; failed driver in the controlling module.

Related codes

Sources

Values and procedures vary by manufacturer. If it affects brakes, steering, fuel or high voltage, see a professional. Updated: 2026-11-04. How we build these pages.