Highlander 4WD L4-2.4L (2AZ-FE) (2001)
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Blower Motor Relay: Testing and Inspection
HEATER BLOWER MOTOR RELAY ASSEMBLY (MANUAL AIR CONDITIONER)
a. Check that the continuity exists between each pair of terminals of heater blower motor relay assembly, as shown in the chart.
b. Apply battery voltage between terminals 3 and 5.
c. Check continuity each pair of terminals, as shown the chart.
If continuity is not as specified, replace the heater blower motor relay.