Description
When one of the steering wheel audio control switches is pushed, the resistance in steering switch circuit changes depending on which button is pushed.
Diagnosis Procedure
1.CHECK STEERING SWITCH RESISTANCE


2.CHECK HARNESS BETWEEN COMBINATION SWITCH (SPIRAL CABLE) AND BLUETOOTH CONTROL UNIT


3.CHECK HARNESS BETWEEN COMBINATION SWITCH (SPIRAL CABLE) AND AUDIO UNIT


4.COMBINATION SWITCH (SPIRAL CABLE) CHECK


5.CHECK HARNESS BETWEEN BLUETOOTH CONTROL UNIT AND AUDIO UNIT


6.CHECK AUDIO UNIT VOLTAGE

Subwoofer
Microphone signal circuitB210D starter relay
DTC Logic
DTC DETECTION LOGIC
NOTE:
If DTC B210D is displayed with DTC
U1000, first perform the trouble diagnosis for DTC U1000. Refer to
SEC-29, "DTC Logic".
If DTC B210D is displayed with DTC
U1010, first perform the trouble diagnosis for DTC U1010. Refer to
SEC-30, "D ...
Wiring diagram
COLOR DISPLAY
Wiring Diagram - With BOSE audio system With Navigation System
...
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
M154.
Check con ...