Celica L4-96.8 1587cc 1.6L DOHC (4A-FE) (1990)
3. Inspect blower speed control.
a. Connect the positive (+) lead from the battery to terminal A-5 and the negative (-) lead to terminal C-10.
b. Push each button of the blower buttons in and check that their indicators light up.
NOTE: The indicator will not light up when the blower button is in the OFF position.
If operation is not as specified, replace the A/C control assembly.
NOTE: Perform the following check only for vehicles with Auto A/C.
c. Disconnect the negative (-) lead from terminal C-10. Then connect it to each terminal and check that the indicators light up as shown.
If operation is not as specified, replace the A/C control assembly.
4. (with A/C) Inspect A/C indicator.
a. Connect the positive (+) lead from the battery to terminal A-5 and the negative (-) lead to terminal C-11.
b. Push the A/C button in and check that the indicator lights up.
If operation is not as specified, replace the A/C control assembly.