Tacoma Extra Cab Limited 4WD V6-3.4L (5VZ-FE) (2000)
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Air Conditioning Switch: Testing and Inspection
INSPECTION
1. INSPECT A/C INDICATOR OPERATION
a. Connect the positive (+) lead from the battery to terminal 6 and the negative (-) lead to terminal 4.
b. Push the A/C button in and then check that the indicator lights up.
If operation is not as specified, replace the switch.
2. INSPECT DIMMING OPERATION
a. Connect positive (+) lead from the battery to terminal 6 and negative (-) lead to terminal 4 and 1.
b. Connect the positive (+) lead from the battery to terminal 3 and then check that the indicator dims.
If operation is not as specified, replace the switch.
3. INSPECT A/C SWITCH CONTINUITY
If operation is not as specified, replace the switch or test the bulb.