SYSTEM DIAGRAM
Transmitter |
Receiver |
Signal |
Communication Line |
---|---|---|---|
Air conditioning amplifier assembly |
ECM |
A/C idle up request signal |
CAN |
Heater idle up request signal |
|||
PTC heater control request signal* |
|||
Electricity load at low voltage state signal |
|||
Ambient temperature signal |
|||
Main body ECU |
Air conditioning amplifier assembly |
Main body request signal |
|
Combination meter assembly |
Air conditioning amplifier assembly |
Vehicle speed signal |
|
ECM |
Air conditioning amplifier assembly |
Engine coolant temperature signal |
|
Engine speed data |
|||
Engine type information signal |
|||
Heater control assembly |
Air conditioning amplifier assembly |
OFF operation switch signal |
LIN |
A/C switch signal |
|||
Rear defogger operation switch signal |
|||
Mode operation switch signal |
|||
REC/FRS switch signal |
|||
Set temperature switch signal |
|||
Blower operation switch signal |
Terminals Of Ecu
TERMINALS OF ECU
1. CHECK 4WD CONTROL ECU
(a) Measure the voltage and resistance according to the value(s) in the table
below.
Terminal No. (Symbol)
Wiring Color
Terminal Description
Condition
Speci ...
Microphone Circuit between Microphone and Navigation Receiver Assembly
DESCRIPTION
The navigation receiver assembly and map light assembly (telephone microphone
assembly) are connected to each other using the microphone connection detection
signal lines.
Using this circuit, the navigation receiver assembly sen ...