Battery charger B reports a enable circuit high condition. HV charging operation may be impaired. The on-board charger negotiates voltage, current and safety with the EVSE; a fault interrupts charging or limits it to AC slow-charge despite a DC fast charger being attached.
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
- Wire shorted to B+
- Pull-down resistor open
- Connector pins corroded - high contact resistance
What to check, in order
Start with the simplest. You can tick off each step.
Good to know
- Repair difficulty: hard
- It can trigger limp mode.
What each character of P2E37 means
- P: Powertrain: engine and transmission
- 2: Generic code: same on every make
- E: Subsystem depends on the code range
- 37: Specific fault in that system
Frequently asked questions
Can I keep driving with code P2E37?
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 P2E37?
The most common causes are: wire shorted to B+; pull-down resistor open; connector pins corroded - high contact resistance.
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.