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 communiction. It is only single wire to make LIN communiction in order to make simple network that is not important speed.
n case of ISG system, ECM receives battery infromation such as battery voltage, current and temperature etc.) through the LIN.
With the information received through the LIN, ECM decides alternator control, idle stop and auto start by receiving battery information.

DTC Description

If it is impossible to communicate through internal or external CAN line over 500ms, ECM sets DTC U0001.

DTC Detecting Condition





Diagnostic Circuit Diagram





Signal Waveform & Data




Fig.1) Signal waveforms of battery sensor