General Information

Engine Control
U1112 LIN Communication Error - General Information

Component Location





General Description

Many control units have applied to vehicle as it becomes more eletrolnical. These units control their own system based on information from diverse sensors. Therefore necessity of common use of diverse sensor information and importance of stable power supply are gathering strength. Battery sensor is mounted on battery (-) terminal. It transmits battery voltage, current, temperature information to PCM. PCM controls generating voltage by duty cycle based on these signals.

DTC Description

PCM sets this code when there is an error in LIN communication line.

DTC Detecting Condition





Diagnostic Circuit Diagram





Signal Waveform & Data




Fig 1) Signal waveforms of battery sensor