(4) Step4: In general, a new product developed by one particular manufacturer could not be used due to a lack of compatibility with other manufacturers products. Because of this new standard, users can enjoy many compatible products from different manufacturer anytime they went. (c) The above descriptions are the objectives to introduce AVC-LAN. By this standardization, development of new products will no longer cause systematic errors. HINT: When +B short or GND short is detected in AVC-LAN circuit, communication stops. And audio system does not function normally. When audio system is not equipped with a navigation system, audio head unit is the master unit.
When audio system is equipped with a navigation system, multi-display is the master unit. This system has 2 kinds of AVC-LAN, Main AVC-LAN and Sub AVC-LAN. Stereo component controller assembly panel works as a master using AVC-LAN circuit has a diagnosis function. The car audio system using AVC-LAN circuit has a diagnosis function. (w/ Navigation system ) Each product has its own specified number called physical address. Numbers are also allotted to each function in one product, which are called logical address. 4. DIAGNOSIS CODE LIST HINT: w/ Navigation system (a) Physical address: 190 Radio receiver assembly HINT: *1: It may be stored when the ignition switch is turned 1 min.
again after engine start. *2: It may be stored when the ignition switch is turned again after engine start. *3: When 210 sec. has passed after pulling out the power supply connector of the master component with the ignition switch in ACC or ON, this code is stored. agn LOGICAL ADDRESS DTC DIAGNOSIS ITEM DIAGNOSIS CONTENT COUNTERMEASURE AND INSPECTED PARTS 01 (Communication Control) 21 ROM Error Error is detected in internal ROM. Replace radio receiver assembly. 01 (Communication Control) 22 RAM Error Error is detected in internal RAM. Replace radio receiver assembly.
01 *1 (Communication Control) D6 Absence of Master Component in which this code is recorded has been disconnected from system with ignition in ACC or ON. Or, when this code was recorded, radio receiver assembly was disconnected. Check harness for power supply system of radio receiver assembly. Check harness for communication system of radio receiver assembly. 01 *2 (Communication Control) D8 NO Response to Connection Check Component shown by auxiliary code is or had been disconnected from system after engine start. D9 Check harness for power supply system of component shown by auxiliary code. Check harness for communication system of component shown by auxiliary code.
01 *1 (Communication Control) D9 Last Mode Error Component operated (sounds and / or images were provided) before engine stop is or has been disconnected with ignition switch in ACC or ON. Check harness for power supply system of component shown by auxiliary code. Check harness for communication system of component shown by auxiliary code. cardi