Fault code lookup

BodyB1837

Caution

Severity: Caution - get it checked when you can

Communication failure with transponder

17 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 17

BrandCodeDescriptionSystem
Mercedes-BenzB1837No description available Body
DaewooB1837No description available Body
DaihatsuB1837L side curtain ignition system ground short BrandBody
DFFSB1837Transponder dialogue failure BrandBody
GMB1837No description available Body
HoldenB1837No description available Body
HondaB1837No description available Body
HyundaiB1837No description available Body
OpelB1837No description available Body
PeroduaB1837L side curtain ignition system ground short BrandBody
PeugeotB1837No description available Body
ProtonB1837No description available Body
SaabB1837No description available Body
MG (SAIC)B1837ECU Error - ROM Error BrandBody
SubaruB1837No description available Body
SuzukiB1837No description available Body
ToyotaB1837Communication failure with transponder 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.

5Related codes

Browse Bxxx codes or B183xx codes.

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