Fault code lookup

BodyB1830

Caution

Severity: Caution - get it checked when you can

High frequency function failure

19 brands affected · Description from Toyota 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 19

BrandCodeDescriptionSystem
Mercedes-BenzB1830No description available Body
CheryB1830Power amplifier control fault BrandBody
DaewooB1830No description available Body
DaihatsuB1830D side curtain ignition system line-to-line short BrandBody
DFFSB1830High frequency function failure BrandBody
GMB1830driver lumbar forward switch circuit malfunction BrandBody
HoldenB1830Lumbar Support Forward Switch Circuit BrandBody
HondaB1830No description available Body
HyundaiB1830No description available Body
MaseratiB1830All Doors Unlock Control-Circuit Short to Battery BrandBody
OpelB1830driver lumbar forward switch circuit malfunction BrandBody
PeroduaB1830D side curtain ignition system line-to-line short BrandBody
PeugeotB1830No description available Body
ProtonB1830No description available Body
SaabB1830driver lumbar forward switch circuit malfunction BrandBody
MG (SAIC)B1830Communication receive Error BrandBody
SubaruB1830No description available Body
SuzukiB1830No description available Body
ToyotaB1830High frequency function failure BrandBody

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 3

These 7-character codes are manufacturer-specific variants of B1830 and may be reported by some scan tools.

BrandCodeDescriptionSystem
SsangYongB183000Buckle switch_Driver in EOLP mode BrandBody
MahindraB183012ACN Battery BrandBody
MahindraB183014ACN GROUND OR OPEN BrandBody

6Related codes

Browse Bxxx codes or B183xx codes.

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