BodyB1400

Caution

Severity: Caution - get it checked when you can

CAN positive power supply voltage failure

27 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

Wiring or connector fault
Faulty sensor or switch
Water or corrosion in a connector
Control module fault
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 27

Brand	Code	Description	System
Ashok Leyland CV	B1400	Hybrid Battery. Control Module 1. Incompatible Software Version Brand	Body
Mercedes-Benz	B1400	No description available	Body
BYD	B1400	Fault description Brand	Body
Chery	B1400	Supply Voltage Low Brand	Body
Chrysler	B1400	No description available	Body
Daewoo	B1400	Switch 'Manual Shifting' Malfunction Brand	Body
DFFS	B1400	CAN positive power supply voltage failure Brand	Body
DFFX	B1400	F ABG(1)DR. squib short Brand	Body
Geely	B1400	F ABG(1)DR. squib short Brand	Body
GM	B1400	Discard driver SIS Brand	Body
Great Wall	B1400	F ABG(1)DR. squib short Brand	Body
Hafei	B1400	F ABG(1)DR. squib short Brand	Body
Holden	B1400	Replace Left Front Side Impact Sensor Brand	Body
Honda	B1400	No description available	Body
Hyundai	B1400	No description available	Body
Land Rover	B1400	No description available	Body
Maserati	B1400	Left front audio speaker output circuit resistance below threshold Brand	Body
Mitsubishi	B1400	F ABG(1)DR. squib short Brand	Body
Opel	B1400	Discard driver SIS Brand	Body
Peugeot	B1400	No description available	Body
Proton	B1400	F ABG(1)DR. squib short Brand	Body
Saab	B1400	Discard Driver SIS Brand	Body
Smart	B1400	No description available	Body
Sprinter	B1400	No description available	Body
Suzuki	B1400	CONTROL UNIT Brand	Body
Tata	B1400	RPM Input Circuit Failure Brand	Body
Toyota	B1400	CAN positive power supply voltage failure Brand	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 13

These 7-character codes are manufacturer-specific variants of B1400 and may be reported by some scan tools.

Brand	Code	Description	System
Hyundai	B140000	The SRSCM sets DTC if there is any fault in DSIS circuit Brand	Body
SsangYong	B140000	SIS(Side impact sensor) front-driver defect Brand	Body
Mercedes-Benz	B140011	No description available	Body
Smart	B140011	No description available	Body
Sprinter	B140011	No description available	Body
Mercedes-Benz	B140012	No description available	Body
Smart	B140012	No description available	Body
Sprinter	B140012	No description available	Body
Mercedes-Benz	B140013	No description available	Body
Smart	B140013	No description available	Body
Sprinter	B140013	No description available	Body
Mercedes-Benz	B14002B	No description available	Body
Smart	B14002B	No description available	Body

6Related codes

Browse Bxxx codes or B140xx codes.