NetworkU1019

Serious

Severity: Serious - have it checked soon

Control module for instrument cluster: missing signal for oil level/temperature; Short to plus

20 brands affected · Description from Volkswagen data.

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

Safety: This code relates to engine oil pressure or oil level. Low oil pressure can destroy the engine within minutes.

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 20

Brand	Code	Description	System
Ashok Leyland CV	U1019	No description available	Network
BAIC Motor	U1019	CAN wheel speed error - rear right Brand	Network
Mercedes-Benz	U1019	No description available	Network
Chery	U1019	Lost communication with airbag module Brand	Network
Daewoo	U1019	Loss of serial communications for class 2 devices Brand	Network
EOBD	U1019	Műszerfal vezérlőmodul Brand	Network
Ford	U1019	No description available	Network
Geely	U1019	Rear Right Wheel Speed CAN Signal Fault Brand	Network
GM	U1019	Loss of serial communications for class 2 devices Brand	Network
Great Wall	U1019	Rear right wheel speed signal error on CAN bus Brand	Network
Holden	U1019	No description available	Network
Hyundai	U1019	No description available	Network
Mazda	U1019	No description available	Network
Opel	U1019	Loss of serial communications for class 2 devices Brand	Network
Peugeot	U1019	No description available	Network
Saab	U1019	Loss of serial communications for class 2 devices Brand	Network
Smart	U1019	No description available	Network
Sprinter	U1019	No description available	Network
Tata	U1019	No description available	Network
Volkswagen	U1019	Control module for instrument cluster: missing signal for oil level/temperature; Short to plus 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 1

These 7-character codes are manufacturer-specific variants of U1019 and may be reported by some scan tools.

Brand	Code	Description	System
BAIC Motor	U101900	DTC status during last driving cycle Brand	Network

6Related codes

Browse Uxxx codes or U101xx codes.