General Information

Engine Control
U1111 Battery Sensor fault detected by ECU - General Information

Component Location





General Description

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 communication. It is only single wire to make LIN communication in order to make simple network that is not important speed. ECM receives battery information 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.

DTC Description

ECM shows the battery sensor error when it receives "1" for error bit in LIN communication

DTC Detecting Condition





Diagnostic Circuit Diagram





Signal Waveform & Data




Fig 1) Signal waveforms of battery sensor.