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:

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 ...

TC and CG Terminal Circuit
DESCRIPTION DTC output mode is set by connecting terminals 13 (TC) and 4 (CG) of the DLC3. The DTCs are indicated by blinks of the tire pressure warning light. WIRING DIAGRAM HINT: When each warning light blinks continuously, a ground short in the wiring of terminal TC of the DLC3 or an ...

Scratched / Reversed Disc
DTC 44-46 Scratched / Reversed Disc DESCRIPTION DTC No. DTC Detecting Condition Trouble Area 44-46 Scratches or dirt is found on DVD surface or DVD is set upside down. DVD Television display assembly INSPECTION PROCEDURE HI ...