Question about Hyundai Cars & Trucks
Low Speed CAN Communication Bus
Posted by Anonymous on
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Posted on Jan 02, 2017
try to remove negative ground from battery or from jumpm start atachment. car should lose energy.. leave it 30 min.
or first u can try to turn on and off ignition key 3 times fast.. when i do that on my 300m on board says something "done" sory for bad english i hope i helped u..
Posted on Sep 25, 2009
U codes are reserved for future systems and may be proprietary to the
The CAN Bus allows 12 Volts, or other potential, power to be distributed around the vehicle (or system) on a single power rail with local actuators connecting the power to each application as needed. Vehicle functions such as temperatures , alarms or the positions of switches are monitored by sensors connected to the bus and the controller can direct the actuators to initiate the appropriate response as required.
Two variants are available to suit different transmission rates. A high speed (1 MBaud) bus is used for rapid control devices for operations such as engine management and vehicle stability and motion control. For simple switching and control of functions such as lighting, windows, mirror adjustment and instrument displays a low speed (100 KBaud) bus is used.
The CAN bus was designed to provide secure communications in the very harsh operating environments with high levels of electrical noise which are found in automotive systems.
The communications protocol defines the following:
The message data, the control signals and the error correction are contained in a data frames of equal length which are transmitted sequentially over the transmission channel.
Definitively, you need visit the dealer to know excalty is you have any problem with the software in your modules os any loss harnesses or wires there.
Additional details, onyl with the manufactured.
Hope this helps.
Posted on Jan 30, 2011
here are diagrams for OBDII pin locations-(page 33 of pdf. manual):
Posted on Sep 01, 2011
SOURCE: u0019 error code on hyundai 55
The u0019 code is a communication failure code on the low speed bus line. You will want to have all modules scanned to see which one is not setting the same code. The module on the low speed bus that is not setting the code is the problem most likly. This particular code is indicating there is an open/short to ground or B+ on the bus line. You will have to find a good electrical shop to diagnose the problem.
Posted on Nov 29, 2011
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