4 Runner Limited 2WD V6-3.4L (5VZ-FE) (1997)
Air Conditioning Switch: Testing and 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 the positive (+) lead from the battery terminal 6 and the negative (-) lead to terminal 4 and 1.
b. Connect the positive (+) lead from battery to terminal 3 and then check that the indicator dims.
If operation is not as specified, replace the switch.
A/C Switch Continuity
3. INSPECT A/C SWITCH CONTINUITY
Switch continuity:
If continuity is not as specified, replace the switch.
Illumination circuit:
If continuity is not as specified, test the bulb.