Tundra Regular Cab SR5 4WD V8-4.7L (2UZ-FE) (2000)
a. Ignition switch ON.
b. Shift the transmission shift lever in N position.
c. Turn the touch select 2-4 switch ON.
d. Check that the 4LO indicator lights come on and the 4HI indicator lights go off when the touch select high-low switch is in ON position.
e. Check that the 4LO indicator lights go off and the 4HI indicator lights come on when the touch select high-low switch is in OFF position.
HINT:
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Inspection should be performed with the vehicle stopped, and transmission shift lever in N position.
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If switching is not completed after 3 seconds of shift operation, the 4LO indicator light will flash.
3. INSPECT TOUCH SELECT 2-4 AND HIGH-LOW SWITCH CONTINUITY
a. Remove center integration panel assembly.
b. Inspect the continuity between the each terminals.
Touch select 2-4 switch:
Touch select high-low switch:
If continuity is not as specified, replace the center integration panel assembly.
4. INSPECT ACTUATOR RESISTANCE
a. Using an ohmmeter, measure the resistance between terminals 1 and 2.
Standard resistance: 0.3 - 100 Ohms
b. Using an ohmmeter, measure the resistance between terminals 1 or 2 and body ground.
Standard resistance: More than 0.5 M Ohms
If resistance value is not as specified, replace the actuator assembly.