NetworkU010F

Serious

Severity: Serious - have it checked soon

Lost Communication With Air Conditioning Control Module

26 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 26

Brand	Code	Description	System
Ashok Leyland CV	U010F	Lost Communication With Air Conditioning Control Module SAE	Network
BAIC Motor	U010F	Lost Communication With Air Conditioning Control Module Brand	Network
BYD	U010F	Lost Communication With Air Conditioning Control Module Brand	Network
Chery	U010F	Lost Communication With Air Conditioning Control Module Brand	Network
Daewoo	U010F	Lost Communication With Air Conditioning Control Module SAE	Network
DFFS	U010F	Communication with air conditioner lost Brand	Network
DFFX	U010F	Lost Communication With Air Conditioning Control Module Brand	Network
DFXK	U010F	Lost Communication With Air Conditioning Control Module Brand	Network
EOBD	U010F	Kaotatud side kliimaseadme juhtmooduliga Brand	Network
Geely	U010F	Lost Communication With Air Conditioning Control Module Brand	Network
GM	U010F	Lost Communication With Air Conditioning Control Module Brand	Network
Great Wall	U010F	Lost Communication With Air Conditioning Control Module Brand	Network
Hafei	U010F	Lost Communication With Air Conditioning Control Module Brand	Network
Holden	U010F	Lost Communication with HVAC Control Module Brand	Network
Honda	U010F	Lost Communication With Air Conditioning Control Module SAE	Network
Hyundai	U010F	Lost Communication With Air Conditioning Control Module SAE	Network
Isuzu	U010F	Lost Communication With Air Conditioning Control Module SAE	Network
Land Rover	U010F	Lost Communication With Air Conditioning Control Module Brand	Network
Mitsubishi	U010F	A/C timeout Brand	Network
Opel	U010F	Lost Communication With Air Conditioning Control Module Brand	Network
Peugeot	U010F	Lost Communication With Air Conditioning Control Module SAE	Network
Proton	U010F	A/C timeout Brand	Network
Saab	U010F	Lost Communication With Air Conditioning Control Module Brand	Network
MG (SAIC)	U010F	Lost Communication With Air Conditioning Control Module Brand	Network
Suzuki	U010F	Lost Communication With Air Conditioning Control Module SAE	Network
Toyota	U010F	Communication with air conditioner lost 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 U010F and may be reported by some scan tools.

Brand	Code	Description	System
Mercedes-Benz	U010F00	Die Kommunikation mit dem Steuergerät 'Elektrischer Kltemittelkompressor' hat Funktionsstörung. Brand	Network

6Related codes

Browse Uxxx codes or U010xx codes.