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 > Key Reminder Warning System: Key Reminder Buzzer does not Sound
DESCRIPTION The key reminder warning buzzer sounds when the driver side door is opened while the ignition switch is in the LOCK or ACC position. The key reminder warning buzzer is activated when the main body ECU (multiplex network body ECU) sends a key switch signal and front door courtesy light sw ...