NetworkU1116

Serious

Severity: Serious - have it checked soon

KOS CAN timeout/Not equipped

25 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

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 25

Brand	Code	Description	System
Mercedes-Benz	U1116	No description available	Network
BYD	U1116	KOS CAN timeout/Not equipped Brand	Network
Chery	U1116	KOS CAN timeout/Not equipped Brand	Network
Daewoo	U1116	Loss of serial communications for class 2 devices Brand	Network
Daihatsu	U1116	Body communication error Brand	Network
DFFS	U1116	CCAN_Radar0F4AEB status is invalid Brand	Network
DFFX	U1116	KOS CAN timeout/Not equipped Brand	Network
EOBD	U1116	KOS CAN-timeout/ej utrustad Brand	Network
Geely	U1116	KOS CAN timeout/Not equipped Brand	Network
GM	U1116	Loss of serial communications for class 2 devices Brand	Network
Great Wall	U1116	KOS CAN timeout/Not equipped Brand	Network
Hafei	U1116	KOS CAN timeout/Not equipped Brand	Network
Holden	U1116	Lost Communication With Right Headlamp Low Beam Control Module Brand	Network
Hyundai	U1116	No description available	Network
Maserati	U1116	Lost Communication with Left Rear Tire Pressure Trigger Module Brand	Network
Mitsubishi	U1116	KOS CAN timeout/Not equipped Brand	Network
Opel	U1116	Loss of serial communications for class 2 devices Brand	Network
Perodua	U1116	Body communication error Brand	Network
Peugeot	U1116	No description available	Network
Proton	U1116	KOS CAN timeout/Not equipped Brand	Network
Saab	U1116	Loss of serial communications for class 2 devices Brand	Network
MG (SAIC)	U1116	Lost Communication with Electronic Battery Sensor Brand	Network
Smart	U1116	No description available	Network
Sprinter	U1116	No description available	Network
Toyota	U1116	KOS CAN timeout/Not equipped 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 2

These 7-character codes are manufacturer-specific variants of U1116 and may be reported by some scan tools.

Brand	Code	Description	System
Volkswagen	U111600	At present the fault memory entry - Subnetwork operation not available is entered Brand	Network
SsangYong	U111602	CAN communication: LDC_3A0 communication error - timeout Brand	Network

6Related codes

Browse Uxxx codes or U111xx codes.