Fault code lookup

BodyB104B

Caution

Severity: Caution - get it checked when you can

Direction Indicators RH single lamp defect

8 brands affected · Description from BAIC Motor 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 8

BrandCodeDescriptionSystem
BAIC MotorB104BDirection Indicators RH single lamp defect BrandBody
Mercedes-BenzB104BNo description available Body
DFFSB104BFront passenger seat belt pretensioner shorted to power BrandBody
Land RoverB104BNo description available Body
MaseratiB104BNo description available Body
MitsubishiB104BCamera aiming fail BrandBody
ProtonB104BCamera aiming fail BrandBody
MG (SAIC)B104BDirection Indicators RH Fault 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 2

These 7-character codes are manufacturer-specific variants of B104B and may be reported by some scan tools.

BrandCodeDescriptionSystem
Mercedes-BenzB104B49Voltage sensor 2 of the refrigerant compressor for the roof-mounted air conditioning system has a malfunction. There is an internal electrical fault. BrandBody
Mercedes-BenzB104B64Voltage sensor 2 of the refrigerant compressor for the roof-mounted air conditioning system has a malfunction. There is an implausible signal. BrandBody

6Related codes

Browse Bxxx codes or B104xx codes.

OpenDTC - independent fault code reference