Diagnosis Procedure
1.CHECK HARNESS CONTINUITY (OPEN CIRCUIT)
Turn the ignition switch OFF.
Disconnect the battery cable from the negative terminal.
Disconnect the following harness connectors.
ECM
A/C auto amp.
Check the continuity between the data link connector and the A/C auto amp. harness connector.

Main line between adp and dlc circuit
Main line between hvac and ABS circuitASCD indicator
Description
ASCD indicator lamp illuminates to indicate ASCD operation status. CRUISE is
integrated in combination
meter.
CRUISE illuminates when MAIN switch on ASCD steering switch is turned ON to
indicated that ASCD system
is ready for operation.
Refer to EC-68, "System Diagram ...
TCM branch line circuit
Diagnosis Procedure
1.CHECK CONNECTOR
Turn the ignition switch OFF.
Disconnect the battery cable from the negative terminal.
Check the following terminals and connectors for damage, bend and
loose connection (unit side and connector
side).
TCM
Harness connector F1
Harness con ...
RGB (B: blue) signal circuit
Description
Transmit the image displayed with AV control unit with RGB signal to the
display unit.
Diagnosis Procedure
1.CHECK CONTINUITY RGB (B: BLUE) SIGNAL CIRCUIT
Turn ignition switch OFF.
Disconnect display unit connector M141 and AV control unit
connector M117.
Check contin ...