DESCRIPTION The No. 2 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) Remove the No. 2 ultrasonic sensor (rear corner sensor RH) (See page
(b) Inspect the No. 2 ultrasonic sensor (rear corner sensor RH) (See page
(a) Disconnect the S4 No. 2 ultrasonic sensor (rear corner sensor RH) connector. (b) Disconnect the J35 clearance warning ECU assembly connector. (c) Measure the resistance according to the value(s) in the table below. Standard Resistance:
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Toyota Tundra Service Manual > How To Troubleshoot Ecu Controlled Systems: General Information
GENERAL INFORMATION A large number of ECU controlled systems are used in the TOYOTA TUNDRA. In general, ECU controlled systems are considered to be very intricate, requiring a high level of technical knowledge to troubleshoot. However, most problem checking procedures only involve inspecting the ECU ...
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