General Information

Head Unit
U1965 Central Control Panel Serial Communication Error - General Information

Component Location





General Description

Central Control Key is
1. installed at center armrest.
2. controlled Navigation, DVD changer, FM/AM, Aux, iPOD, Bluetooth, Vehicle information.
3. Jog dial + Hot Key formation.
4. applied 8 directoin jog dial.
5. improve the material by applied real aluminum at jog dial.

DTC Description

This DTC is set when communication is a break between Head Unit and Central Control Key Unit.

DTC Detecting Condition





Diagnostic Circuit Diagram





Signal Waveform & Data








Fig.1) At normal TX waveform that Control unit key is pushed down once(Measure waveform at Head Unit TX line)
Fig.2) At normal RX waveform that Control unit key is pushed down once(Monitoring signal at Head Unit RX line)