General Information

Head Unit
U1942 Rear Display SDC Communication Error - General Information

Component Location





General Description

The rear monitor communicate with Head unit by LVDS(Low Voltage Differential Signal)directly on the LIN communication.
The distinction of rear monotor is
1. Monitor tilting function on right and left direction.
2. On Screen Display function for rear seat user.
3. 8 inch TFT LCD: VGA resolution(800 x 480 dots).
4. LVDS (Low Voltage Differential Signal)
5. Anti-Glare & Low-Reflection

DTC Description

This code is set when Head unit detects communication error between Head unit and rear monitor.

DTC Detecting Condition





Diagnostic Circuit Diagram





Signal Waveform & Data




Fig.1) Measured waveform at the TX CLK+ terminal connected between Head Unit and front Monitor