P0E6F: Battery Charging System Precharge Contactor Control Circuit Low

P0E6F points to the coil control line of the charging precharge contactor sitting too low, most likely shorted to ground. With a high-side driver the coil then cannot be energised, so precharge never starts; the driver itself may shut down to protect itself. No manufacturer documents P0E6F publicly. GM notes for the comparable high-side monitor of its positive charging contactor (P0D0A, 2019 hybrid tables) that it cannot detect a short to ground at all, which is why a separate low code makes sense. Mitsubishi's i-MiEV stores P0AE6 when the coil feedback of its charging contactor stays off while the module commands it on; it names wiring, the contactor and the EV-ECU as causes. P0E70 is the high counterpart, P0E6D an open coil circuit.

High severity. Can I keep driving?If the car still runs, drive as little as possible and go to a specialized repair shop. Do not touch the orange cables: they carry high voltage.

Symptoms

Charging does not start, contactor click missing
High-voltage fault message when plugging in

Most likely causes

Coil control wire shorted to ground inside or near the battery
Shorted turns in the contactor coil
Driver stage switched off by its overcurrent protection

What to check, in order

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

Read the codes with a hybrid-compatible scanner and write down the freeze frame data
With the connector unplugged, check whether the signal wire is making contact with ground.
Make sure the battery cooling air intake is clean
Check the 12 V auxiliary battery, which can also trigger warnings
Leave any high-voltage measurements to a specialized repair shop

What each character of P0E6F means

P: Powertrain: engine and transmission
0: Generic code: same on every make
E: Subsystem depends on the code range
6F: Specific fault in that system

Frequently asked questions

Can I keep driving with code P0E6F?

If the car still runs, drive as little as possible and go to a specialized repair shop. Do not touch the orange cables: they carry high voltage.

What causes code P0E6F?

The most common causes are: coil control wire shorted to ground inside or near the battery; shorted turns in the contactor coil; driver stage switched off by its overcurrent protection.

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.