Sequoia LTD 4WD V8-4.7L (2UZ-FE) (2001)
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Heater Core Case: Testing and Inspection
INSPECTION
1. INSPECT FINS FOR BLOCKAGE
If the fins are clogged, clean them with compressed air.
2. INSPECT AIR OUTLET SERVOMOTOR OPERATION
a. Connect the positive (+) lead from the battery to terminal 2 and the negative (-) lead to terminal 1.
b. Connect the negative (-) lead from the battery to each terminal and check that the shaft rotates at each position, as shown in the illustration.
