Fault code lookup

BodyB1F99

Caution

Severity: Caution - get it checked when you can

No description available

6 brands affected · No description available.

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 6

BrandCodeDescriptionSystem
DaewooB1F99No description available Body
GMB1F99No description available Body
HoldenB1F99No description available Body
OpelB1F99No description available Body
PeugeotB1F99No description available Body
SaabB1F99No 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 15

These 7-character codes are manufacturer-specific variants of B1F99 and may be reported by some scan tools.

BrandCodeDescriptionSystem
Mercedes-BenzB1F9901Control unit 'Audio or COMAND' has a malfunction. BrandBody
Mercedes-BenzB1F9904OMSE118 internal error BrandBody
Mercedes-BenzB1F9905OMSE118 Programming error BrandBody
Mercedes-BenzB1F9906OMSE118 an algorithm error exists BrandBody
Mercedes-BenzB1F9920NVRAM Data writing fail in MCU BrandBody
Mercedes-BenzB1F9921Camera is defective due to a hardware problem BrandBody
Mercedes-BenzB1F9922Camera is defective due to a software problem BrandBody
Mercedes-BenzB1F994BHU overtemperature BrandBody
Mercedes-BenzB1F9952Device Key still available BrandBody
Mercedes-BenzB1F9954OMSE118 the EOL calibration is missing BrandBody
Mercedes-BenzB1F9956OMSE118 An incorrect or incompatible configuration has been detected BrandBody
Mercedes-BenzB1F9957OMSE118 wrong or incompatible software modules were detected BrandBody
Mercedes-BenzB1F9996HU General Device Error - CSB BrandBody
Mercedes-BenzB1F9997Emergency Error Log is active BrandBody
Mercedes-BenzB1F9998OMSE118 the component or the system has overtemperature. BrandBody

6Related codes

Browse Bxxx codes or B1F9xx codes.

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