Fault code lookup

BodyB1851

Caution

Severity: Caution - get it checked when you can

Driver lumbar horizontal sensor circuit performance

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

  1. Wiring or connector fault
  2. Faulty sensor or switch
  3. Water or corrosion in a connector
  4. Control module fault
  5. 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

BrandCodeDescriptionSystem
Mercedes-BenzB1851No description available Body
DaewooB1851Engine Speed Signal Range/Performance BrandBody
GMB1851Driver lumbar horizontal sensor circuit performance BrandBody
HoldenB1851No description available Body
HyundaiB1851No description available Body
MitsubishiB1851IG voltage connection BrandBody
OpelB1851Driver lumbar horizontal sensor circuit performance BrandBody
PeugeotB1851No description available Body
ProtonB1851IG voltage connection BrandBody
SaabB1851Driver Lumbar Horizontal Sensor Circuit Performance BrandBody
MG (SAIC)B1851Volumetric Sensor ECU EEPROM Failure BrandBody
SprinterB1851No description available Body
SubaruB1851No description available Body
SuzukiB1851Front Parking Sensor Communication Bus Error BrandBody
ToyotaB1851No 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.

5Related codes

Browse Bxxx codes or B185xx codes.

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