NetworkU0230

Serious

Severity: Serious - have it checked soon

Lost Communication With Rear Gate Module

30 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

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 30

Brand	Code	Description	System
Ashok Leyland CV	U0230	EGR Volume Control Valve Position Sensor (Exhaust Gases Recirculation). Control System Performance Brand	Network
BAIC Motor	U0230	Lost Communication With Rear Gate Module Brand	Network
BYD	U0230	Lost Communication With Rear Gate Module Brand	Network
Chery	U0230	Lost Communication With Rear Gate Module Brand	Network
Daewoo	U0230	Lost Communication With Rear Gate Module Brand	Network
DFFS	U0230	POT CAN communication lost fault Brand	Network
DFFX	U0230	Lost Communication With Rear Gate Module Brand	Network
DFXK	U0230	Lost Communication With Rear Gate Module Brand	Network
EOBD	U0230	Kaotatud side tagaluugi mooduliga Brand	Network
Geely	U0230	Lost Communication With Rear Gate Module Brand	Network
GM	U0230	Lost Communication With Rear Gate Module Brand	Network
Great Wall	U0230	Lost Communication With Rear Gate Module Brand	Network
Hafei	U0230	Lost Communication With Rear Gate Module Brand	Network
Holden	U0230	Lost Communication with Liftgate Control Module Brand	Network
Honda	U0230	Lost Communication With Rear Gate Module SAE	Network
Hyundai	U0230	Lost Communication With Rear Gate Module SAE	Network
Land Rover	U0230	Lost Communication With Rear Gate Module Brand	Network
Maserati	U0230	Lost communication with power liftgate module Brand	Network
Mitsubishi	U0230	Power Gate CAN timeout Brand	Network
Opel	U0230	Lost Communication With Rear Gate Module Brand	Network
Peugeot	U0230	Lost Communication With Rear Gate Module SAE	Network
Proton	U0230	Power Gate CAN timeout Brand	Network
Saab	U0230	Lost Communication With Rear Gate Module Brand	Network
Maxus (SAIC)	U0230	Lost Communication With PLG Brand	Network
MG (SAIC)	U0230	Lost Communication With PLG Brand	Network
Subaru	U0230	Lost Communication With Rear Gate Module SAE	Network
Suzuki	U0230	Lost Communication With Rear Gate Module SAE	Network
Tata	U0230	Lost Communication With Rear Gate Module Brand	Network
Toyota	U0230	Power operated tailgate (POT) CAN communication lost Brand	Network
Volkswagen	U0230	SAE: No Communications with Rear Gate Module 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.

5Related codes

Browse Uxxx codes or U023xx codes.