OPERATION CHECK AUTOMATIC LIGHT CONTROL SYSTEM OPERATION CHECK (a) Turn the ignition switch to ON. (b) Turn the light control switch to the Auto position. (c) Cover the automatic light control sensor. (d) Check that the taillights and low beam headlights turn on. (e) Uncover the automatic light control sensor. (f) Check that the low beam headlights and taillights turn off. LIGHT AUTO TURN-OFF SYSTEM OPERATION CHECK (a) When the taillights are on (low beam headlights are not on) (1) Close all of the doors. (2) Turn the ignition switch to ON. (3) Turn the taillights on. (4) Turn the ignition switch off. (5) Open the driver door. (6) Check that all of the lights turn off immediately. (b) When the low beam headlights are on (1) Close all of the doors. (2) Turn the ignition switch to ON. (3) Turn the low beam headlights on. (4) Turn the ignition switch off. (5) Open any of the doors. (6) Close the door. (7) Check that all of the lights turn off after 30 seconds (delay function). HINT: Before the lights turn off, if the lock button on the key is pushed after all of the doors are locked, all of the lights will turn off immediately. DAYTIME RUNNING LIGHT SYSTEM OPERATION CHECK NOTICE: w/o DRL Off Switch: This check is possible only when the "DRL Function" customize setting is set to "ON" on the Techstream. (The default setting is "ON".) Click here (a) Turn the light control switch to the off (w/o DRL Off Switch), Tail or Auto position (with the low beam headlights not turned on via the automatic light control system). (b) The engine is running. (c) Release the parking brake. (d) Check that the daytime running lights turn on. AUTOMATIC HIGH BEAM SYSTEM OPERATION CHECK (w/ Automatic High Beam System) (a) Check the operation of the automatic high beam indicator light. 
(1) Turn the ignition switch to ON. (2) Turn the light control switch to the Auto or head position. (3) Turn the headlight dimmer switch to the high position. (4) Turn the automatic high beam main switch on. HINT: If the automatic high beam main switch is turned on when the light control switch is not in the AUTO or head position, or the dimmer switch is not in the high position, "To Activate AHB, Switch Headlights to High Beam" will be displayed on the multi-information display. (5) Check that the automatic high beam indicator light turns on. NOTICE: When the forward recognition camera cannot correctly detect objects due to inclement weather such as thick fog or other visual obstructions, the automatic high beam indicator may not turn on and consequently the automatic high beam system may not operate. (b) Check the operation of the automatic high beam function. (1) At night, when driving the vehicle with the automatic high beam system in standby mode, check that the high beams automatically turn on after a short delay when all of the following conditions are met:
(2) At night, when driving the vehicle with the high beams turned on by the automatic high beam system, check that the automatic high beam system turns off the high beams and returns to standby mode when any of the following conditions are met:
INSPECT ILLUMINATED ENTRY SYSTEM OPERATION NOTICE: Perform this inspection with the customize parameters at the initial settings. HINT: Perform this inspection with the interior dome light switch assembly, roof console box assembly (front interior light) and No. 1 room light assembly (rear interior light) are DOOR position. Lights Controlled by Illuminated Entry System
INSPECT BATTERY SAVING CONTROL OPERATION (a) The operations and conditions of this control are described below.
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Toyota Tundra Service Manual > Front Door Speaker(for Crewmax): Inspection
INSPECTION PROCEDURE 1. INSPECT FRONT NO. 1 SPEAKER ASSEMBLY (for Standard) (a) Measure the resistance according to the value(s) in the table below. Standard resistance: Tester Connection Condition Specified Condition 1 - 2 Always 2 Ω If the result is not as specified, replace the front No. 1 speak ...
