Tacoma PreRunner Dbl Cab 2WD V6-3.4L (5VZ-FE) (2001)
Check the continuity between terminals while switch is pressed, as shown in the chart.
8. INSPECT TEMPERATURE CONTROL SWITCH OPERATION
a. Check that the resistance between terminals 11 and 13 is approx. 3.0 Kohms
b. Connect the positive (+) lead from the three 1.5 V dry cell batteries to terminal 11 and negative (-) lead to terminal 13.
c. Connect the positive (+) lead from the tester to terminal 12 and negative (-) lead to terminal 13.
d. Gradually turn the switch from "MAX. WARM" side to "MAX. COOL" side and check that the voltage increase from 0 to 4.5 V.
If operation is not as specified, replace the heater control base.
9. INSPECT BLOWER SPEED CONTROL SWITCH OPERATION
Check the continuity between terminals at each switch position as shown in the chart.
If continuity is not as specified, replace the heater control base.