PowertrainP250100

Caution

Severity: Caution - get it checked when you can

If the difference between battery voltage from the battery sensor and ECU input voltage is greater than 3V for more than 1 min., ECM sets DTC

2 brands affected · Description from Hyundai data.

Key terms: Control module: a small computer that runs one part of the car · Powertrain: engine, transmission and emissions

Safety: This code relates to the charging system. The battery may go flat and the car may stall.

1What it means in plain English

The engine or powertrain control system has stored a fault that does not have specific guidance in this database yet.

2Common causes

Sensor or actuator fault
Wiring or connector fault
Vacuum or intake leak
Fuel or ignition problem
Control module fault

3Can I drive?

Caution · drive with care

The electrical system may fail and the battery may go flat, risking a stall. If the battery or charging warning light is on, drive straight to a workshop.

This page gives general information. It is not professional advice. For a definite diagnosis and a repair quote, ask a qualified mechanic to inspect the car.

4Brand data 2

Brand	Code	Description	System
Hyundai	P250100	If the difference between battery voltage from the battery sensor and ECU input voltage is greater than 3V for more than 1 min., ECM sets DTC Brand	Powertrain
SsangYong	P250100	Alternator L-terminal signal shorted high Brand	Powertrain

Legend: SAE is the generic J2012 description; Brand is text taken from that manufacturer’s data. Manufacturer rows keep the wording and language of the source data, and non-English text is tagged so screen readers pronounce it correctly.

5Related codes

Browse Pxxx codes or P250xx codes.