LIN technology is , a serial communication system which is used for communicating only one signal, developed to substitute CAN network, Normally used for multi signal communiction. It is only single wire to make LIN communiction in order to make simple network that is not important speed. ECM receives battery infromation such as battery voltage, current and temperature etc.) through the LIN, and uses these data as a information for controlling the battery status and charge.
U1111 is set when there is no reponse within required tme between control modles using LIN communication.
Item
Detecting Condition
Possible Cause
DTC Strategy
Signal monitoring
LIN communication modules
(battery senosr, etc.)
ECM
Enable Conditions
IG key ON
Threshold value
battery sensor message 1 time out error
battery sensor message 2 time out error
Diagnosis Time
4 sec
Fail Safe
Fuel cut
NO
-
EGR Off
Fuel Limit
Check Lamp
OFF
[Fig.1] Bettery sensor LIN Communication signal waverform at idle.
- Transmission --> Hi : 80% of B+, Low : 20% of B+
- Receipt --> Hi : 70% of B+, Low : 30% of B+