BodyB122D

Caution

Severity: Caution - get it checked when you can

Left seat back blower speed sensor

11 brands affected · Description from Land Rover 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 11

Brand	Code	Description	System
Daewoo	B122D	No description available	Body
Geely	B122D	Front Passenger Switch Indicator Light Cannot Open Fault Brand	Body
GM	B122D	No description available	Body
Holden	B122D	Windshield Wiper Park Signal Circuit Brand	Body
Honda	B122D	No description available	Body
Land Rover	B122D	Left seat back blower speed sensor Brand	Body
Mitsubishi	B122D	No description available	Body
Opel	B122D	No description available	Body
Peugeot	B122D	No description available	Body
Proton	B122D	No description available	Body
Saab	B122D	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 2

These 7-character codes are manufacturer-specific variants of B122D and may be reported by some scan tools.

Brand	Code	Description	System
Mercedes-Benz	B122D49	Voltage sensor 1 of the front electric booster heater has a malfunction. There is an internal electrical fault. Brand	Body
Mercedes-Benz	B122D64	Voltage sensor 1 of the front electric booster heater has a malfunction. There is an implausible signal. Brand	Body

6Related codes

Browse Bxxx codes or B122xx codes.