JF3A TRANSFER / 4WD / AWD: TOUCH SELECT 2-4 AND HIGH-LOW SYSTEM: FAIL-SAFE CHART (2008 Sequoia)

Malfunction Item	Fail-Safe Operation	Indicator Light	Fail-Safe Deactivation Condition
4WD control ECU malfunction	2WD to 4WD HIGH switching is not possible 4WD HIGH to 4WD LOW switching is not possible Changing center differential from free to lock and lock to free is not possible	4HI indicator light, 4LO indicator light and CENTER DIFF. Indicator light blink at 0.2 seconds intervals	Ignition switch off
Wheel speed signal malfunction	2WD to 4WD HIGH switching is not possible 4WD HIGH to 4WD LOW switching is not possible Changing center differential from free to lock is not possible	4HI indicator light blinks at 0.2 seconds intervals. The 4LO and CENTER DIFF. indicator lights may also blink at 0.2 seconds intervals	When signal returns to normal When the 4WD control switch and transfer shift actuator positions are the same Ignition switch off
A/T shift position signal malfunction	4WD HIGH to 4WD LOW switching is not possible	4LO indicator light blinks at 0.2 seconds intervals	When signal returns to normal When the 4WD control switch and transfer shift actuator positions are the same Ignition switch off
Engine speed signal malfunction	4WD HIGH to 4WD LOW switching is not possible	4LO indicator light blinks at 0.2 seconds intervals
A.D.D. actuator limit switch malfunction	2WD to 4WD HIGH switching is not possible 4WD HIGH to 4WD LOW switching is not possible During cruise control AUTO driving, cruise control system is turned OFF Changing center differential from free to lock and lock to free is not possible	4HI indicator light blinks at 0.2 seconds intervals	Ignition switch off
Multi mode transfer shift actuator limit switch malfunction	2WD to 4WD HIGH switching is not possible 4WD HIGH to 4WD LOW switching is not possible During cruise control AUTO driving, cruise control system is turned OFF Changing center differential from free to lock and lock to free is not possible	CENTER DIFF. indicator light blinks at 0.2 seconds intervals
High-low transfer shift actuator limit switch malfunction	2WD to 4WD HIGH switching is not possible 4WD HIGH to 4WD LOW switching is not possible Changing center differential from free to lock and lock to free is not possible	4LO indicator light blinks at 0.2 seconds intervals

HINT:

When the switching operation is performed during cruise control AUTO driving, if the switch completion does not occur 5 seconds after the switching operation, the cruise control system is turned off.