BodyB1861

Caution

Severity: Caution - get it checked when you can

Battery voltage too low

17 brands affected · Description from Toyota 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 17

Brand	Code	Description	System
Mercedes-Benz	B1861	No description available	Body
Daewoo	B1861	No description available	Body
Daihatsu	B1861	D seat knee airbag disconnection Brand	Body
DFFS	B1861	Battery voltage too low Brand	Body
GM	B1861	Driver lumbar vertical sensor circuit performance Brand	Body
Holden	B1861	No description available	Body
Land Rover	B1861	No description available	Body
Mitsubishi	B1861	e-Call battery Brand	Body
Opel	B1861	Driver lumbar vertical sensor circuit performance Brand	Body
Perodua	B1861	D seat knee airbag disconnection Brand	Body
Peugeot	B1861	No description available	Body
Proton	B1861	e-Call battery Brand	Body
Saab	B1861	Driver Lumbar Vertical Sensor Circuit Performance Brand	Body
Sprinter	B1861	No description available	Body
Subaru	B1861	No description available	Body
Suzuki	B1861	Front-Center-Left Parking Sensor Brand	Body
Toyota	B1861	Battery voltage too low Brand	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 2

These 7-character codes are manufacturer-specific variants of B1861 and may be reported by some scan tools.

Brand	Code	Description	System
Mercedes-Benz	B18619A	Control unit 'Left rear door handle' has a malfunction. The operating conditions for the component or the system are not satisfied. Brand	Body
Porsche	B1861F0	RV camera voltage supply - voltage to high / to low Brand	Body

6Related codes

Browse Bxxx codes or B186xx codes.