NetworkU0557

Serious

Severity: Serious - have it checked soon

Invalid Data Received From Front Controls Interface Module A

23 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 23

Brand	Code	Description	System
Ashok Leyland CV	U0557	Invalid Data Received From Front Controls Interface Module A SAE	Network
BAIC Motor	U0557	Invalid Data Received From Front Controls Interface Module 'A' Brand	Network
Mercedes-Benz	U0557	Invalid Data Received From Front Controls Interface Module A SAE	Network
BYD	U0557	Invalid Data Received From Front Controls Interface Module 'A' Brand	Network
Chery	U0557	Invalid Data Received From Front Controls Interface Module 'A' Brand	Network
DFFS	U0557	Invalid Data Received From Front Controls Interface Module 'A' Brand	Network
DFFX	U0557	Invalid Data Received From Front Controls Interface Module 'A' Brand	Network
DFXK	U0557	Invalid Data Received From Front Controls Interface Module 'A' Brand	Network
EOBD	U0557	Kehtetu andme saadeti esiosa juhtimismoodulilt 'A' Brand	Network
Ford	U0557	Invalid Data Received From Front Controls Interface Module A SAE	Network
Geely	U0557	Invalid Data Received From Front Controls Interface Module 'A' Brand	Network
GM	U0557	Invalid Data Received From Front Controls Interface Module 'A' Brand	Network
Great Wall	U0557	Invalid Data Received From Front Controls Interface Module 'A' Brand	Network
Hafei	U0557	Invalid Data Received From Front Controls Interface Module 'A' Brand	Network
Hyundai	U0557	Invalid Data Received From Front Controls Interface Module A SAE	Network
Land Rover	U0557	Invalid data received from the front controls interface module Brand	Network
Mazda	U0557	Invalid Data Received From Front Controls Interface Module A SAE	Network
Peugeot	U0557	Invalid Data Received From Front Controls Interface Module A SAE	Network
Saab	U0557	Invalid Data Received From Front Controls Interface Module 'A' Brand	Network
MG (SAIC)	U0557	Invalid Data Received From Front Controls Interface Module 'A' Brand	Network
Sprinter	U0557	Invalid Data Received From Front Controls Interface Module A SAE	Network
Toyota	U0557	Invalid data received from front controls interface module 'A' Brand	Network
Volkswagen	U0557	Invalid Data Received From Front Controls Interface Module A SAE	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 16

These 7-character codes are manufacturer-specific variants of U0557 and may be reported by some scan tools.

Brand	Code	Description	System
Mercedes-Benz	U055709	Implausible data were received from control unit 'AMG DRIVE UNIT'. There is a component fault. Brand	Network
Mercedes-Benz	U055729	Das Signal DAS_Off_Rq_AMG_ST3 vom DRVU-Steuergerät wird mit einem ungültigem Wert empfangen Brand	Network
Mercedes-Benz	U055783	ComScl_DRVU_Aero_SpdLim_Rq_AMG_Pr2- Datatcorrupt Error Brand	Network
Mercedes-Benz	U055786	No description available	Network
Mercedes-Benz	U0557E0	Das Signal DAS_Off_Rq_AMG_ST3 wird mit einem ungültigem Wert empfangen Brand	Network
Mercedes-Benz	U0557E1	Botschaft vom DRVU SG wird zeitweise nicht empfangen Brand	Network
Mercedes-Benz	U0557E6	No description available	Network
Mercedes-Benz	U0557E7	No description available	Network
Mercedes-Benz	U0557E8	No description available	Network
Mercedes-Benz	U0557E9	No description available	Network
Mercedes-Benz	U0557FA	ComScl_DPC_Master_Rq2_AMG_Pr2_Datacorrupt Error Brand	Network
Mercedes-Benz	U0557FB	ComScl_SBW_Rq_DRVU_Pr2- Datacorrupt Error Brand	Network
Mercedes-Benz	U0557FC	ComScl_DPC_IndMd_Stat_AMG_Pr2- Datacorrupt Error Brand	Network
Mercedes-Benz	U0557FD	ComScl_DPC_IndMd_Style2_AMG_Pr2- Datacorrupt Error Brand	Network
Mercedes-Benz	U0557FE	ComScl_DPC_IndMd_Style_AMG_Pr2- Datacorrupt Error Brand	Network
Mercedes-Benz	U0557FF	ComScl_DPC_Master_Rq_AMG_Pr2- Datacorrupt Error Brand	Network

6Related codes

Browse Uxxx codes or U055xx codes.