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 |
•
No reponse between control modles using LIN communication. | |||
Diagnosis Time |
•
4 sec | |||
Fail Safe | Fuel cut | NO |
•
- | |
EGR Off | NO | |||
Fuel Limit | NO | |||
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+
