Temperature Control Switch Circuit

TEMPERATURE CONTROL SWITCH CIRCUIT

CIRCUIT DESCRIPTION





By turning the temp. control switch, the set temperature of the A/C can be adjusted in steps of 1 deg F (USA) or O.5 deg 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 temp. control SW and displays the set temperature on the LCD display.

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





DIAGNOSTIC CHART





WIRING DIAGRAM

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INSPECTION PROCEDURE