OPERATION CHECK 1. CHECK FRONT POWER SEAT FUNCTION ![]() (a) Check the basic functions. (1) Operate the power seat switches and check to make sure each seat function works:
2. CHECK POWER SEAT MOTOR ASSEMBLY (SLIDING, FRONT VERTICAL, LIFTER, RECLINING AND LUMBAR SUPPORT) (a) Check the PTC operation inside the power seat motor. HINT: The PTC thermistor's resistance increases when the power seat switch is held down even after the power seat has been moved to the maximum in one direction. If the resistance increases beyond a specified level, current is cut to prevent a short circuit. NOTICE:
(1) Choose a power seat function. Operate the power seat switch and move the seat as much as possible in one direction. Keep the seat in that position for approximately 60 seconds. (2) Operate the power seat switch again and continue to try to move the seat in the same direction as in the previous step. Measure the amount of time elapsed before current is automatically cut (the sound of the motor has stopped). Standard: 4 to 90 seconds (3) After current has been cut, release the power seat switch and wait for approximately 60 seconds. (4) Operate the same power seat switch and move the seat in the opposite direction. Check that the motor operates. |
Toyota Tundra Service Manual > Pre-collision System: Front Radar Sensor Incorrect Axial Gap (C1A11)
DESCRIPTION When the vehicle is determined to be driving in a straight line or on a gradual curve based on signals from the yaw rate sensor, etc., the millimeter wave radar sensor assembly performs self diagnosis to check if the sensor beam axis has deviated. If the millimeter wave radar sensor asse ...