Toyota Sienna Service Manual: Rear Clearance Sonar Sensor LH Circuit

Toyota Sienna Service Manual / Park assist / monitoring / Clearance sonar system / Adjustment / Rear Clearance Sonar Sensor LH Circuit

DESCRIPTION

An ultrasonic sensor consists of a sensor portion that transmits and receives ultrasonic waves and a preamplifier that amplifies them. The ultrasonic sensor outputs the ultrasonic waves and sends the received signals to the clearance warning ECU.

WIRING DIAGRAM

WIRING DIAGRAM

INSPECTION PROCEDURE

1 INSPECT NO. 1 ULTRASONIC SENSOR

INSPECT NO. 1 ULTRASONIC SENSOR

Remove the No. 1 ultrasonic sensor.
Measure the resistance according to the value(s) in the table below.

Standard resistance

Standard resistance

2 CHECK HARNESS AND CONNECTOR (CLEARANCE WARNING ECU - NO. 1 ULTRASONIC SENSOR)

CHECK HARNESS AND CONNECTOR (CLEARANCE WARNING ECU

Disconnect the C9 connector from the clearance warning ECU.

CHECK HARNESS AND CONNECTOR (CLEARANCE WARNING ECU

Disconnect the U4 connector from the No. 1 ultrasonic sensor.
Measure the resistance according to the value(s) in the table below.

Standard resistance

Standard resistance

PROCEED TO NEXT CIRCUIT INSPECTION SHOWN IN PROBLEM SYMPTOMS TABLE

Front Clearance Sonar Sensor RH Circuit

DESCRIPTION An ultrasonic sensor consists of a sensor portion that transmits and receives ultrasonic waves and a preamplifier that amplifies them. The ultrasonic sensor outputs the ultrasonic wave ...

Rear Clearance Sonar Sensor RH Circuit

Other materials:

Reassembly
1. INSTALL FRONT DOOR WIRE LH Install the wire with the 2 bolts. Torque: Reference 8.0 N*m (82 kgf*cm, 71 in.*lbf) NOTICE: In order to prevent water leakage, be sure that the lip of the rubber grommet does not turn up or is not deformed when installing the wire. Connect the wir ...

Removal
NOTICE: Always wear safety gloves because the edges of the seatback frame and seat adjuster are sharp and may cause injury. Work must be started more than 90 seconds after the ignition switch is turned to the LOCK position and the negative (-) terminal cable is disconnected ...

DVD Error/ Excess Current/ Tray Insertion / Ejection Error
DTC 44-44 DVD Error DTC 44-48 Excess Current DTC 44-50 Tray Insertion / Ejection Error DESCRIPTION DTC No. DTC Detection Condition Trouble Area 44-44 Operation error in the DVD mechanism Television display assembly 44-48 Excess current is prese ...