Fault code lookup

NetworkU1080

Serious

Severity: Serious - have it checked soon

Loss of Serial Communications for Class 2 Devices

12 brands affected · Description from GM 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

  1. Wiring or connector fault on the communication bus
  2. Faulty control module
  3. Low battery voltage or poor ground
  4. Water ingress in a connector or module
  5. 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 12

BrandCodeDescriptionSystem
Mercedes-BenzU1080No description available Network
DaewooU1080Loss of Serial Communications for Class 2 Devices BrandNetwork
DFFSU1080Unknown switch failure BrandNetwork
EOBDU1080V-CAN bus off BrandNetwork
GMU1080Loss of Serial Communications for Class 2 Devices BrandNetwork
MitsubishiU1080V-CAN Bus-off BrandNetwork
PeugeotU1080No description available Network
ProtonU1080V-CAN Bus-off BrandNetwork
SaabU1080Loss of Serial Communications for Class 2 Devices BrandNetwork
SmartU1080No description available Network
SprinterU1080No description available Network
SuzukiU1080No description available 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.

5Related codes

Browse Uxxx codes or U108xx codes.

OpenDTC - independent fault code reference