DESCRIPTION The No. 1 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. 1 ultrasonic sensor (front corner sensor LH) (See page
(b) Inspect the No. 1 ultrasonic sensor (front corner sensor LH) (See page
(a) Disconnect the C1 No. 1 ultrasonic sensor (front corner sensor LH) connector. (b) Disconnect the B1 No. 1 ultrasonic sensor (front corner sensor RH) connector. (c) Measure the resistance according to the value(s) in the table below. Standard Resistance:
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Toyota Tundra Service Manual > Blind Spot Monitor System: Destination Information Undefined (C1AB8)
DESCRIPTION This DTC is stored when correct destination information is not sent from the main body ECU (multiplex network body ECU) and destination information cannot be confirmed after a blind spot monitor sensor has been replaced. DTC No. DTC Detection Condition Trouble Area C1AB8 The blind spot m ...