ON-VEHICLE INSPECTION PROCEDURE 1. INSPECT INDICATOR LIGHT (a) Inspect the 4HI Indicator Light: (1) Start the engine. (2) Change the 4WD control switch from 2WD to 4H. (3) Check the 4HI indicator light. OK: The 4HI indicator light comes on or the 4HI indicator light comes on after it is blinking. If the result is not as specified, inspect the switch, four wheel drive control ECU and transfer shift actuator assembly. If
there is a malfunction, inspect the switch, ECU, transfer shift
actuator and A.D.D. actuator. If the system is normal, there may be a
malfunction in the CAN communication system or combination meter. In
this case, first check the CAN communication system (See page
(b) Inspect the 4LO Indicator Light: (1) Start the engine. (2) Move the shift lever to N. (3) Change the 4WD control switch from 2WD to 4H. Then change it from 4H to 4L after the 4HI indicator light illuminates (after 4H switch completion). (4) Check the 4LO indicator light. OK: The 4LO indicator light comes on or the 4LO indicator light comes on after it is blinking. If there is a malfunction, inspect the switch, ECU and actuator. If the system is normal, the combination meter may be malfunctioning. 2. INSPECT TRANSFER POSITION SWITCH (a) Remove the transfer position switch with its connector still connected (See page TF-89).
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Toyota Tundra Service Manual > Front Seat Side Airbag Assembly(for Manual Seat): Installation
INSTALLATION CAUTION / NOTICE / HINT CAUTION: Wear protective gloves. Sharp areas on the seat frame and adjuster may injure your hands. PROCEDURE 1. INSTALL FRONT SEAT AIRBAG ASSEMBLY LH CAUTION: The nuts must not be reused. Make sure that the front seat back main frame sub-assembly is not deformed. ...