Related Diagnostic Procedures

CIRCUIT DESCRIPTION
By turning the temperature control switch, the set temperature of the A/C can be adjusted in steps of 1° F (USA) or 0.5 ° C (Canada). Turning the switch fully will set the A/C to MAX. COLD or MAX. HOT.

The ECU calculates the set temperature from the combination of Hi (5 V) or Low (0 V) terminals SET 1 - 5 of the temperature control SW and displays the set temperature on the LCD display.

If a malfunction occurs in the temperature control SW circuit, malfunctions such as not being able to set the desired temperature occur.

Wiring Diagram:

Step 1:

Step 2:

Step 3:

INSPECTION PROCEDURE