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 > Trailer Brake Control System: Control Module Communication Bus "A" Off (U0073,U0123,U0129,U0155)
DESCRIPTION The trailer brake control ECU (brake control with bracket relay) receives signals from the skid control ECU (brake actuator assembly), yaw rate and acceleration sensor (airbag sensor assembly) and combination meter assembly via CAN communication. DTC No. Detection Item INF Code DTC Detec ...