BodyB1850

Caution

Severity: Caution - get it checked when you can

driver lumbar horiz sensor circuit malfunction

15 brands affected · Description from GM 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 15

Brand	Code	Description	System
Mercedes-Benz	B1850	No description available	Body
Daewoo	B1850	No description available	Body
GM	B1850	driver lumbar horiz sensor circuit malfunction Brand	Body
Holden	B1850	driver lumbar horiz sensor circuit malfunction Brand	Body
Honda	B1850	No description available	Body
Hyundai	B1850	No description available	Body
Opel	B1850	driver lumbar horiz sensor circuit malfunction Brand	Body
Peugeot	B1850	No description available	Body
Proton	B1850	No description available	Body
Saab	B1850	driver lumbar horiz sensor circuit malfunction Brand	Body
MG (SAIC)	B1850	Volumetric Sensor Self Test Failure Brand	Body
Sprinter	B1850	No description available	Body
Subaru	B1850	No description available	Body
Suzuki	B1850	Lost Communication With Combination Meter Brand	Body
Toyota	B1850	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 B1850 and may be reported by some scan tools.

Brand	Code	Description	System
SsangYong	B185000	Far side airbag connector poor connection Brand	Body
Mercedes-Benz	B185009	No description available	Body

6Related codes

Browse Bxxx codes or B185xx codes.