P0E68: Battery Charger Control Circuit Range/Performance

P0E68 is the plausibility code of the charger command line: no short or open is present, yet the charger does not react to the command in the expected way or in the expected time. Typical triggers are a charger that wakes too slowly, a voltage drop on the line that leaves the level ambiguous, or software in the two modules that disagrees. No manufacturer documents P0E68 publicly. A close analogue is Ford's P0E64 on its 2019 hybrids: once the charge wake-up line is high, the battery energy control module must report ready within 30 seconds. GM's general circuit code for the same line is P0E65. CARB requires detection of charger faults that block charging or reduce its rate. Pure wiring faults are P0E65 to P0E67; a software update is often the first step.

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 late, stops or fails intermittently
Charge timer or scheduled charging not working

Most likely causes

Charger and control unit software not matching
Charger responding late or not at all to the command
Excess resistance in the line distorting the signal level

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

Good to know

Repair difficulty: medium

What each character of P0E68 means

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

Frequently asked questions

Can I keep driving with code P0E68?

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 P0E68?

The most common causes are: charger and control unit software not matching; charger responding late or not at all to the command; excess resistance in the line distorting the signal level.

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.