DTC Logic

Diagnosis Procedure
1.CHECK USB HARNESS
Visually check USB harness.
U1243 display unit
U1255 satellite radio tunerVertical synchronizing (VP) signal circuit
Description
In composite image (AUX image, camera image), transmit the vertical
synchronizing (VP) signal and horizontal
synchronizing (HP) signal from display unit to AV control unit so as to
synchronize the RGB images displayed
with AV control unit, such as the image quality adjusting men ...
Power supply and ground circuit
A/C AUTO AMP.
A/C AUTO AMP.: Description
COMPONENT DESCRIPTION
A/C Auto Amp. (Air Conditioner Automatic Amplifier)
The A/C auto amp. (1) has a built-in microcomputer that processes
information sent from various sensors needed for air conditioner
operation. The air mix door motor(s), the mo ...
Back-up lamp
Wiring Diagram
...