Highlander 4WD V6-3.0L (1MZ-FE) (2003)
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Blower Motor Switch: Testing and Inspection
HEATER BLOWER SWITCH (MANUAL AIR CONDITIONER)
a. Inspect blower switch continuity.
If continuity is not as specified, replace the air conditioner control assembly.
b. Inspect illumination operation.
Connect the positive (+) lead from the battery to terminal 2 and negative (-) lead to terminal 3 then check that the illuminations light up.
If there is bulb not light up, replace the bulb.
