INSPECTION PROCEDURE 1. INSPECT REAR DOOR LOCK ASSEMBLY LH (a) Check the door lock motor. (1) Apply battery voltage to the door lock and check operation of the door lock. 
OK:
(b) Check the door lock position switch. (1) Measure the resistance according to the value(s) in the table below. Standard resistance:
2. INSPECT REAR DOOR LOCK ASSEMBLY RH (a) Check the door lock motor. (1) Apply battery voltage to the door lock and check operation of the door lock. 
OK:
(b) Check the door lock position switch. (1) Measure the resistance according to the value(s) in the table below. Standard resistance:
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Toyota Tundra Service Manual > Intuitive Parking Assist System: Rear Clearance Sonar Sensor RH Circuit
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 ...
