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 LH) (See page
(b) Inspect the No. 2 ultrasonic sensor (rear corner sensor LH) (See page
(a) Disconnect the S1 No. 2 ultrasonic sensor (rear corner sensor LH) connector. (b) Disconnect the S2 No. 3 ultrasonic sensor (rear center sensor LH) connector. (c) Measure the resistance according to the value(s) in the table below. Standard Resistance:
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Toyota Tundra Service Manual > Can Communication System: Check Bus 3 Line for Short to GND
DESCRIPTION There may be a short circuit between one of the CAN bus wires and +B when no resistance exists between terminal 6 (CA3H) of the central gateway ECU (network gateway ECU) and terminal 4 (CG) of the DLC3, or terminal 21 (CA3L) of the central gateway ECU (network gateway ECU) and terminal 4 ...
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