Fault code lookup

NetworkU023C

Serious

Severity: Serious - have it checked soon

Lost Communication With Image Processing Module C

20 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 20

BrandCodeDescriptionSystem
Ashok Leyland CVU023CLost Communication With Image Processing Module C SAENetwork
BAIC MotorU023CLost Communication With Image Processing Module 'C' BrandNetwork
BYDU023CLost Communication With Image Processing Module 'C' BrandNetwork
CheryU023CLost Communication With Image Processing Module 'C' BrandNetwork
DaewooU023CLost Communication With Image Processing Module C SAENetwork
DFFSU023CLost Communication With Image Processing Module 'C' BrandNetwork
DFFXU023CLost Communication With Image Processing Module 'C' BrandNetwork
DFXKU023CLost Communication With Image Processing Module 'C' BrandNetwork
EOBDU023CKaotatud side pilditöötlusmooduliga 'C' BrandNetwork
GeelyU023CLost Communication With Image Processing Module 'C' BrandNetwork
GMU023CLost Communication With Image Processing Module 'C' BrandNetwork
Great WallU023CLost Communication With Image Processing Module 'C' BrandNetwork
HafeiU023CLost Communication With Image Processing Module 'C' BrandNetwork
HoldenU023CLost Communication with Night Vision Camera Control Module BrandNetwork
HyundaiU023CLost Communication With Image Processing Module C SAENetwork
OpelU023CLost Communication With Image Processing Module 'C BrandNetwork
PeugeotU023CLost Communication With Image Processing Module C SAENetwork
SaabU023CLost Communication With Image Processing Module 'C' BrandNetwork
MG (SAIC)U023CLost Communication With Image Processing Module 'C' BrandNetwork
ToyotaU023CLost communication with image processing module 'C' 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 U023xx codes.

OpenDTC - independent fault code reference