Fault code lookup

NetworkU0223

Serious

Severity: Serious - have it checked soon

Lost Communication With Door Window Motor B

22 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

  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 22

BrandCodeDescriptionSystem
Ashok Leyland CVU0223Lost Communication With Door Window Motor B SAENetwork
BAIC MotorU0223Lost Communication With Door Window Motor B BrandNetwork
BYDU0223Lost Communication With Door Window Motor B BrandNetwork
CheryU0223Lost Communication With Door Window Motor B BrandNetwork
DaewooU0223Lost Communication With Door Window Motor B BrandNetwork
DFFSU0223Lost Communication With Door Window Motor B BrandNetwork
DFFXU0223Lost Communication With Door Window Motor B BrandNetwork
DFXKU0223Lost Communication With Door Window Motor B BrandNetwork
EOBDU0223Kaotatud side ukse akna mootoriga B BrandNetwork
GeelyU0223Lost Communication With Door Window Motor B BrandNetwork
GMU0223Lost Communication With Door Window Motor B BrandNetwork
Great WallU0223Lost Communication With Door Window Motor B BrandNetwork
HafeiU0223Lost Communication With Door Window Motor B BrandNetwork
HyundaiU0223Lost Communication With Door Window Motor B SAENetwork
Land RoverU0223Lost Communication With 'Door Window Motor B' BrandNetwork
PeugeotU0223Lost Communication With Door Window Motor B SAENetwork
SaabU0223Lost Communication With Door Window Motor B BrandNetwork
MG (SAIC)U0223Lost Communication With Door Window Motor B BrandNetwork
SubaruU0223Lost Communication With Door Window Motor B SAENetwork
TataU0223Lost Communication With 'Door Window Motor B' BrandNetwork
ToyotaU0223Lost communication with door window motor B BrandNetwork
VolkswagenU0223SAE: No Communications with Door Window Motor B BrandNetwork

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 U022xx codes.

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