1. Measure the temperature around the passenger compartment temperature sensor and measure the resistance between passenger compartment temperature sensor terminals A and B.
If the characteristics of the passenger compartment temperature sensor are not as shown in the graph, replace the passenger compartment temperature sensor.

Differential Oil Temperature Sensor Removal/Installation
Passenger Compartment Temperature Sensor Removal/Installation [Full Auto Air
Conditioner]Operational Range
The system operates only when the driver is in the vehicle or within operational
range while the key is being carried.
NOTE
When the battery power is low, or in places where there are high-intensity
radio waves or noise, the operational range may become narrower or the system may
not operate ...
Down Switch Inspection [Fw6 A EL, Fw6 Ax EL]
Continuity Inspection
NOTE:
The down switch is built into the selector lever component.
1. Disconnect the negative battery cable..
2. Remove the front console..
3. Disconnect the selector lever component connector.
4. Verify that the continuity between selector lever compone ...
Air Intake Actuator Inspection [Full Auto Air Conditioner]
1. Connect battery positive voltage to air intake actuator terminal B (or C),
connect terminal C (or B) to ground, and then verify that the air intake actuator
operates as shown in the table.
If the operation condition is not normal, replace the air intake actuator.
...