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Description
The air conditioning amplifier communicates data with the ecm and combination meter through the can communication system.

Wiring diagram

Inspection procedure
Result 

Go to can communication system
Compressor solenoid circuit (2006/01- )
Blower motor circuitDisassembly
Remove park/neutral position switch assembly
Remove the nut, washer and control shaft lever.
Using a screwdriver, pry off the lock plate.
Remove the nut and lock plate.
Remove the 2 bolts and pull out the switch.
Remove breather plug hose
Remove oil coo ...
Solar sensor circuit (passenger side)
Description
The solar sensor, which is installed on the upper side of the instrument
panel, detects sunlight and
controls the air conditioning auto mode. The output voltage from the solar
sensor varies in accordance
with the amount of sunlight. When the sunlight increases, the output volt ...
Terminals of ecm
Check ecm
Disconnect the a9 and b30 connectors.
Measure the voltage and resistance of the wire
harness side connectors.
If the result is not as specified, there may be a
malfunction on the wire harness side. ...