NetworkU0141

Serious

Severity: Serious - have it checked soon

Lost Communication With Body Control Module B

40 brands affected · Generic SAE J2012 description.

Key terms: Control module: a small computer that runs one part of the car · SAE J2012: the standard generic code list

1What it means in plain English

Control modules in the car cannot communicate with each other over the vehicle network.

2Common causes

Wiring or connector fault on the communication bus
Faulty control module
Low battery voltage or poor ground
Water ingress in a connector or module
Aftermarket device interfering with the bus

3Can I drive?

Serious · drive with care

The car may run normally or may not run at all. If the module that has lost communication controls steering, brakes, park brake, charging or engine cooling, drive only if those systems feel normal; stop safely if the steering becomes heavy, a brake warning appears, or the engine temperature climbs. If the car will not start or runs badly, have it towed.

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 40

Brand	Code	Description	System
Ashok Leyland CV	U0141	Lost Communication With Body Control Module B SAE	Network
BAIC Motor	U0141	LF Lamp Module Poor Connection Brand	Network
Mercedes-Benz	U0141	Lost Communication With Body Control Module B SAE	Network
BYD	U0141	Lost communication with distribution box Brand	Network
Chery	U0141	Lost communication with BCM Brand	Network
Chrysler	U0141	Lost Communication With IPM Brand	Network
Daewoo	U0141	Lost Communication With Body Control Module A Brand	Network
Daihatsu	U0141	Lost communication with body control module A Brand	Network
DFFS	U0141	Lost Communication With Body Control Module A Brand	Network
DFFX	U0141	Lost Communication With Body Control Module A Brand	Network
DFXK	U0141	Fault in communication between ECU and USM Brand	Network
EOBD	U0141	Kaotatud side keha juhtmooduliga A Brand	Network
Fiat	U0141	Lost communication with IPM Brand	Network
Geely	U0141	Lost Communication With Body Control Module A Brand	Network
GM	U0141	Lost Communication With Body Control Module A Brand	Network
Great Wall	U0141	Lost Communication With Body Control Module A Brand	Network
Hafei	U0141	Lost Communication With Body Control Module A Brand	Network
Holden	U0141	Lost Communication with Body Control Module Brand	Network
Honda	U0141	Lost Communication With Body Control Module B SAE	Network
Hyundai	U0141	Lost Communication With Body Control Module B SAE	Network
Isuzu	U0141	Lost Communication With Body Control Module B SAE	Network
Land Rover	U0141	Lost Communication With Body Control Module B SAE	Network
Maserati	U0141	Lost Communication With Integrated Power Module (FrontCcontrol Module /Totally Integrated Power Module) Brand	Network
Mitsubishi	U0141	ETACS CAN timeout Brand	Network
Nissan	U0141	Lost Communication With Body Control Module B SAE	Network
Opel	U0141	Lost Communication With Body Control Module A Brand	Network
Perodua	U0141	Lost communication with body control module A Brand	Network
Peugeot	U0141	Lost Communication With Body Control Module B SAE	Network
Porsche	U0141	Lost Communication With Body Control Module B SAE	Network
Proton	U0141	ETACS CAN timeout Brand	Network
Saab	U0141	Lost Communication With Body Control Module A Brand	Network
Maxus (SAIC)	U0141	Lost Communication With DSM Brand	Network
MG (SAIC)	U0141	Lost Communication With DSM Brand	Network
Smart	U0141	Lost Communication With Body Control Module B SAE	Network
Sprinter	U0141	Lost Communication With Body Control Module B SAE	Network
Subaru	U0141	Lost Communication With Body Control Module B SAE	Network
Suzuki	U0141	Lost Communication With Keyless Start Control Module – Missing Message Brand	Network
Tata	U0141	Lost Communication With Body Control Module 'A' Brand	Network
Toyota	U0141	Lost communication with body control module A Brand	Network
Volkswagen	U0141	SAE: No Communications with Body Control Module A Brand	Network

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 12

These 7-character codes are manufacturer-specific variants of U0141 and may be reported by some scan tools.

Brand	Code	Description	System
Mercedes-Benz	U014100	Door Module Malfunction Brand	Network
SsangYong	U014100	CAN: Eletronic ignition switch not Received Brand	Network
Mercedes-Benz	U014164	Die Kommunikation mit dem Signalerfass- und Ansteuermodul vorn hat Funktionsstörung. Es liegt ein unplausibles Signal vor. Brand	Network
SsangYong	U014181	Variant coding error: Connected Control Unit (CCU) specification detection Brand	Network
Mercedes-Benz	U014182	Communication with the front signal acquisition and actuation module has a malfunction. Counter error. Brand	Network
Mercedes-Benz	U014183	Communication with the front signal acquisition and actuation module has a malfunction. CRC error. Brand	Network
Mercedes-Benz	U014186	Communication Error ORC (Bckl_Sw_Ft_Stat_Pr2) Brand	Network
Mercedes-Benz	U014187	Timeout error BC_F (BC_F_Stat1_AR) Brand	Network
Sprinter	U014187	No description available	Network
SsangYong	U014187	CAN communication: Connected Control Unit (CCU) message not received Brand	Network
Mercedes-Benz	U0141FA	No description available	Network
Mercedes-Benz	U0141FD	SG PN14_SupBat_Stat - Timeout Error Brand	Network

6Related codes

Browse Uxxx codes or U014xx codes.