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 front 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 TCLK+ terminal connected between Head Unit and front Monitor