BodyB1233

Serious

Severity: Serious - have it checked soon

Right cooling fin overheating

21 brands affected · Description from BYD data.

Key terms: Control module: a small computer that runs one part of the car

Safety: This code relates to overheating, smoke or a possible fire risk.

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

Wiring or connector fault
Faulty sensor or switch
Water or corrosion in a connector
Control module fault
Low battery voltage

3Can I drive?

Serious · drive with care

Stop safely and switch the engine off if the car is overheating, smoking or smells of burning, and have it recovered. Do not keep driving.

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 21

Brand	Code	Description	System
Ashok Leyland CV	B1233	No description available	Body
Mercedes-Benz	B1233	No description available	Body
BYD	B1233	Right cooling fin overheating Brand	Body
Chery	B1233	Front passenger seatbelt buckle Brand	Body
Daewoo	B1233	No description available	Body
DFFS	B1233	No description available	Body
Geely	B1233	Rear Right Side Power Window Anti-Pinch Module Hall Sensor Brand	Body
GM	B1233	No description available	Body
Holden	B1233	Cooling Fan Relay 3 Control Circuit Brand	Body
Honda	B1233	No description available	Body
Hyundai	B1233	No description available	Body
Land Rover	B1233	No description available	Body
Mahindra	B1233	No description available	Body
Opel	B1233	No description available	Body
Peugeot	B1233	No description available	Body
Proton	B1233	No description available	Body
Saab	B1233	No description available	Body
Smart	B1233	No description available	Body
Sprinter	B1233	No description available	Body
Suzuki	B1233	LH Knee airbag harness short between '+' side and '-' side Brand	Body
Toyota	B1233	No 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 2

These 7-character codes are manufacturer-specific variants of B1233 and may be reported by some scan tools.

Brand	Code	Description	System
Mercedes-Benz	B123349	Temperature sensor 4 of the front electric booster heater has a malfunction. There is an internal electrical fault. Brand	Body
Mercedes-Benz	B123364	Temperature sensor 4 of the front electric booster heater has a malfunction. There is an implausible signal. Brand	Body

6Related codes

Browse Bxxx codes or B123xx codes.