BodyB2586

Caution

Severity: Caution - get it checked when you can

Power window ECU undervoltage

5 brands affected · Description from Daihatsu data.

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

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

Do not assume this code is safe to drive. If it concerns the brakes, brake vacuum, charging/alternator, engine oil or coolant, have it diagnosed before driving. Airbags or seat belts may not work in a crash, and a brake or charging fault can leave the car unsafe or stranded. For convenience systems (windows, locks, climate), have it checked when convenient.

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 5

Brand	Code	Description	System
Daihatsu	B2586	Power window ECU undervoltage Brand	Body
DFFS	B2586	Eco mode button stuck Brand	Body
Mitsubishi	B2586	No description available	Body
Perodua	B2586	Power window ECU undervoltage Brand	Body
Toyota	B2586	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 1

These 7-character codes are manufacturer-specific variants of B2586 and may be reported by some scan tools.

Brand	Code	Description	System
Mercedes-Benz	B258639	Der Positionssensor des Geberrades 'Windabweiser' hat Funktionsstörung. Das Signal hat zu wenige Impulse. Brand	Body

6Related codes

Browse Bxxx codes or B258xx codes.