Fault code lookup

BodyB1408

Caution

Severity: Caution - get it checked when you can

Electronic control unit internal fault

26 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 26

BrandCodeDescriptionSystem
Ashok Leyland CVB1408Misfire Detection At Cylinder 1 BrandBody
Mercedes-BenzB1408No description available Body
BYDB1408Accelerator pedal fault BrandBody
CheryB1408Blower voltage BrandBody
DaewooB1408No description available Body
DFFSB1408ECU internal fault BrandBody
DFFXB1408FR impact sensor faulty COM BrandBody
GeelyB1408FR impact sensor faulty COM BrandBody
GMB1408No description available Body
Great WallB1408FR impact sensor faulty COM BrandBody
HafeiB1408FR impact sensor faulty COM BrandBody
HoldenB1408Seat Belt Indicator Circuit BrandBody
HondaB1408No description available Body
HyundaiB1408Description BrandBody
Land RoverB1408No description available Body
MaseratiB1408Rear Left Audio Speaker Output-Performance or Incorrect Operation BrandBody
MitsubishiB1408FR impact sensor faulty COM BrandBody
OpelB1408No description available Body
PeugeotB1408No description available Body
ProtonB1408FR impact sensor faulty COM BrandBody
SaabB1408No description available Body
SmartB1408No description available Body
SubaruB1408No description available Body
SuzukiB1408CONTROL UNIT BrandBody
TataB1408Supply Voltage To Controller Low BrandBody
ToyotaB1408Electronic control unit internal 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 1

These 7-character codes are manufacturer-specific variants of B1408 and may be reported by some scan tools.

BrandCodeDescriptionSystem
SsangYongB140800SIS driver communication error BrandBody

6Related codes

Browse Bxxx codes or B140xx codes.

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