BodyB2239

Caution

Severity: Caution - get it checked when you can

Battery voltage too low

3 brands affected · Description from BYD data.

Key terms: Control module: a small computer that runs one part of the car

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

1What it means in plain English

A body system has a fault. Depending on the make, this range can include airbags and seat belts, windows, locks and climate control, and also charging, brake, oil or coolant sensors.

2Common causes

Wiring or connector fault
Faulty sensor or switch
Water or corrosion in a connector
Control module fault
Low battery voltage

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 3

Brand	Code	Description	System
BYD	B2239	Battery voltage too low Brand	Body
Tata	B2239	No description available	Body
Toyota	B2239	No description available	Body

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.

5Extended variant codes 7

These 7-character codes are manufacturer-specific variants of B2239 and may be reported by some scan tools.

Brand	Code	Description	System
SsangYong	B223900	Microphone 1 circuit high Brand	Body
Mercedes-Benz	B223908	Das Steuergerät 'Leuchtweitenregulierung' hat Funktionsstörung. Es liegt ein Signalfehler vor oder die Botschaft ist fehlerhaft. Brand	Body
Mercedes-Benz	B223909	Das Steuergerät 'Leuchtweitenregulierung' hat Funktionsstörung. Es liegt ein Bauteilfehler vor. Brand	Body
Mercedes-Benz	B223913	The control unit 'Headlamp range adjustment' has a malfunction. There is an open circuit. Brand	Body
Mercedes-Benz	B223955	The control unit 'Headlamp range adjustment' has a malfunction. The component is not configured. Brand	Body
Mercedes-Benz	B223964	The control unit 'Headlamp range adjustment' has a malfunction. There is an implausible signal. Brand	Body
Mercedes-Benz	B2239A1	The control unit 'Headlamp range adjustment' has a malfunction. The system voltage is outside the permissible range. Brand	Body

6Related codes

Browse Bxxx codes or B223xx codes.