P2E38: Battery Charger B Enable Circuit Range/Performance

Battery charger B reports a enable circuit range/performance condition. HV charging operation may be impaired.

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

Charge status indicator shows fault
Charging may not start or interrupts
Slower-than-expected charge rate

Most likely causes

Enable voltage drifted
High-resistance contact
Sensor element aged beyond calibration window

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: hard
It can trigger limp mode.

What each character of P2E38 means

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

Frequently asked questions

Can I keep driving with code P2E38?

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 P2E38?

The most common causes are: enable voltage drifted; high-resistance contact; sensor element aged beyond calibration window.

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.