Celica L4-122 1998cc 2.0L DOHC Turbo (3S-GTE) (1990)
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If operation is not as specified, replace the A/C control assembly.
3. Inspect blower speed control switch continuity.
If operation is not as specified, replace the A/C control assembly.
4. Inspect Temperature control switch.
a. Measure the resistance between terminals A-7 and A-20.
Resistance: 3 k Ohms
b. Check that the resistance between terminals A-20 and A-21 increases from 0 to approx. 3k Ohms when the switch knob is turned from COOL
to HOT.
If operation is not as specified, replace the A/C control assembly.
5. inspect A/C switch continuity.
With Auto A/C.