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. PCM 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.
PCM shows the battery sensor error when it receives "1" for error bit in LIN communication.
Item
Detecting Condition
Possible Cause
DTC Strategy
Signal Monitoring
Battery sensor
EnableConditions
Time after engine start = 2sec.
Battery voltage = 11V
Threshold value
Battery sensor error
Diagnosis Time
Continuous
MIL On Condition
No MIL
Fig.1) Signal waveforms of battery sensor