General Information

Head Unit
U1940 Front Display SDC Communication Error - General Information

Component Location





General Description

The front monitor communicate with Head unit by LVDS(Low Voltage Differential Signal)directly on the LIN communication.
The distinction of fornt monotor is
1. A separate monitor.
2. 8 inch TFT LCD: VGA resolutions (800 x 480 dots).
3. LVDS(Low Voltage Differential Signal)
4. Anti-Glare & Low-Reflection

DTC Description

This code is set when Head unit detected communication error between Head unit and front 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