Celica 2WD L4-2.0L (3S-FE) (1988)
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Air Conditioning Switch: Testing and Inspection
Push Type Controls
Inspect A/C indicator light operation.
1. Connect the positive (+) battery lead to terminal B5 and the negative (-) battery lead to terminal B2.
2. With the A/C button pushed in, check that the indicator light is lit.
If operation is not as specified, replace the heater control.
Inspect A/C switch continuity.
Inspect the A/C switch continuity between terminals.