REMOVAL PROCEDURE 1. REMOVE RADIATOR SIDE GRILLE LH
(a) Detach the 2 claws and 3 guides as shown in the illustration to remove the radiator side grille LH. 2. REMOVE RADIATOR GRILLE SUB-ASSEMBLY (a) w/ Toyota Safety Sense P: (1) Disconnect the millimeter wave radar sensor connector. (b) Put protective tape around the radiator grille sub-assembly.
(c) Remove the 4 screws and 2 clips.
(d) Detach the 4 claws and 3 clips and remove the radiator grille sub-assembly.
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Toyota Tundra Service Manual > Sfi System: Throttle Actuator Control Motor Current Range / Performance (P2118)
DESCRIPTION The ETCS (Electronic Throttle Control System) has a dedicated power supply circuit. The voltage (+BM) is monitored and when it is low (less than 4 V), the ECM determines that there is a malfunction in the ETCS and cuts off the current to the throttle actuator. When the voltage becomes un ...