Celica L4-1998cc 2.0L DOHC (3S-GE) (1986)
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6. Inspect the air vent mode switch continuity between terminals with RECIRC/FRESH control button on (RECIRC).
If continuity is not as specified, replace the heater control.
7. Inspect RECIRC/FRESH control switch operation.
a. With the positive (+) battery lead connected to terminal A7 and the negative (-) battery lead connected to terminal All, check that the RECIRC
indicator light comes on.
b. With the RECIRC/FRESH control button pushed in (FRESH) and any mode button except DEF on, check that there is continuity between
terminals A3 and A12.
If operation is not as specified, replace the heater control.
