P0E6E: Battery Charging System Precharge Contactor Control Circuit Range/Performance

P0E6E is stored when the coil circuit of the charging precharge contactor neither shows a clean short nor an open, but its electrical behaviour does not match the command: coil current outside the expected window, a slow pull-in, or feedback that lags behind the switching command. Rising contact resistance in the connector, a coil with changed resistance or a weak supply to the driver are typical. No manufacturer documents P0E6E publicly. Related GM monitoring in the 2019 hybrid tables shows the measured quantity, a current sense feedback of the contactor driver with a 194 mA minimum while on, used there for the positive charging contactor (P0D0A). CARB requires output components to be checked for proper function, not only for circuit faults. Hard faults on the same circuit are P0E6D, P0E6F and P0E70.

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 starts only on some attempts
Fault appears mostly in cold weather or with a weak 12 V battery

Most likely causes

Increased contact resistance in the coil connector
Contactor coil resistance out of specification
Low supply voltage at the contactor driver

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
Compare the reading with other engine data while varying the engine speed.
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 P0E6E means

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

Frequently asked questions

Can I keep driving with code P0E6E?

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 P0E6E?

The most common causes are: increased contact resistance in the coil connector; contactor coil resistance out of specification; low supply voltage at the contactor driver.

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.