Fig. 3: Checking Continuity Between Each Terminal (Switch Off) Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.


Tester connected terminal number

Specified condition

1 - 3


2004 DRIVELINE/AXLES A.D.D. Control System - Sequoia

1 - 4

No continuity

3 - 5

No continuity

4 - 5

No continuity

f. Connect the actuator connector.

g. Shift the transfer shift lever "H" position and switch the 2 - 4 selector switch ON.

h. Check the A.D.D. actuator operation by sound.

i. Disconnect the actuator connector.

j. Check the continuity between each terminal, as shown in the chart.

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