DESCRIPTION The No. 3 ultrasonic sensor sends and receives ultrasonic waves. Based on the received wave, the sensor calculates the approximate distance value between the vehicle and the obstacle, and sends the distance value as a signal to the clearance warning ECU assembly. WIRING DIAGRAM  PROCEDURE
(a) Replace the No. 3 ultrasonic sensor (rear center sensor RH) (See page
(b) Inspect the No. 3 ultrasonic sensor (rear center sensor RH) (See page
(a) Disconnect the S3 No. 3 ultrasonic sensor (rear center sensor RH) connector. (b) Disconnect the S4 No. 2 ultrasonic sensor (rear corner sensor RH) connector. (c) Measure the resistance according to the value(s) in the table below. Standard Resistance:
|
Toyota Tundra Service Manual > Sfi System: Brake Switch "B" Circuit High (P0724)
DESCRIPTION The purpose of this circuit is to prevent the engine from stalling while driving in the lock-up condition when the brakes are suddenly applied. When the brake pedal is depressed, this switch sends a signal to the ECM. Then the ECM cancels the operation of the lock-up clutch while braking ...
).
