REMOVAL PROCEDURE 1. REMOVE LOWER STEERING COLUMN COVER (for Manual Tilt)
2. REMOVE UPPER STEERING COLUMN COVER (for Manual Tilt)
3. REMOVE LOWER STEERING COLUMN COVER (for Manual Tilt and Manual Telescopic Steering Column)
4. REMOVE UPPER STEERING COLUMN COVER (for Manual Tilt and Manual Telescopic Steering Column)
5. REMOVE LOWER STEERING COLUMN COVER (for Power Tilt and Power Telescopic Steering Column)
6. REMOVE UPPER STEERING COLUMN COVER (for Power Tilt and Power Telescopic Steering Column)
7. REMOVE UNLOCK WARNING SWITCH ASSEMBLY 
(a) Disconnect the connector. (b) Insert the key. (c) Remove the unlock warning switch assembly by releasing the 2 claws. HINT: Slide the unlock warning switch assembly in the direction shown by the arrow in the illustration to remove it. Text in Illustration
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Toyota Tundra Service Manual > Power Door Lock Control System: All Doors LOCK/UNLOCK Functions do not Operate Via Door Key Cylinder
DESCRIPTION The main body ECU (multiplex network body ECU) receives driver door key cylinder lock or unlock switch signals from the front door lock assembly LH. The main body ECU (multiplex network body ECU) activates the door lock motor on each door according to these signals. WIRING DIAGRAM CAUTIO ...
