NetworkU113D

Serious

Severity: Serious - have it checked soon

Lost Communication With Master Power Window Switch

1 brand affected · Description from Maserati data.

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

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 1

Brand	Code	Description	System
Maserati	U113D	Lost Communication With Master Power Window Switch 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 9

These 7-character codes are manufacturer-specific variants of U113D and may be reported by some scan tools.

Brand	Code	Description	System
Mercedes-Benz	U113D00	External access to the LIN bus failed due to missing authentication. Brand	Network
Mercedes-Benz	U113D01	TGS not initialized Brand	Network
Mercedes-Benz	U113D02	External access via the LIN bus has failed due to missing authentication. There is a general signal fault. Brand	Network
Mercedes-Benz	U113D03	BSW Watchdog (Wdg) has detectet an Error Brand	Network
Mercedes-Benz	U113D04	BSW Serial Peripheral Interface (Spi) has detectet an Error Brand	Network
Mercedes-Benz	U113D05	BSW ECU Reset Monitoring detected a unexpected ECU Reset Brand	Network
Mercedes-Benz	U113D06	BSW Non Volatile Memory (NvM) has detectet the Error INTEGRITY FAILED Brand	Network
Mercedes-Benz	U113D07	BSW Non Volatile Memory (NvM) has detectet the Error REQ FAILED Brand	Network
Mercedes-Benz	U113D81	External access via the LIN bus has failed due to missing authentication. Incorrect data were received. Brand	Network

6Related codes

Browse Uxxx codes or U113xx codes.