Toyota RAV4 manuals

Toyota Sienna Service Manual: Rear 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 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

  1. Remove the No. 1 ultrasonic sensor.
  2.  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

  1. Disconnect the C9 connector from the clearance warning ECU.

CHECK HARNESS AND CONNECTOR (CLEARANCE WARNING ECU

  1. Disconnect the U6 connector from the No. 1 ultrasonic sensor.
  2.  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

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 wave ...

No. 1 Clearance Warning Buzzer Circuit
DESCRIPTION The clearance warning ECU receives the ultrasonic sensor signal to sound the front warning buzzer. WIRING DIAGRAM INSPECTION PROCEDURE 1 INSPECT FRONT BUZZER Remove the c ...

Other materials:

Removal
1. REMOVE EXHAUST PIPE ASSEMBLY (a) Remove exhaust pipe assembly (See page EX-8). 2. REMOVE PROPELLER W/CENTER BEARING SHAFT ASSEMBLY (a) Depress the brake pedal and hold it down. (b) Using a hexagon wrench (6 mm), loosen the cross groove joint set bolts a half turn. HINT: Place a cloth ...

Initialization
Items to initialize The following items must be initialized for normal system operation after such cases as the battery being reconnected, or maintenance being performed on the vehicle. Item When to initialize Power sliding door (if equipped) After reconnecting o ...

Scratched / Reversed Disc
63-46 Scratched / Reversed Disc DESCRIPTION DTC No. DTC Detection Condition Trouble Area 63-46 Scratches or dirt is found on CD surface or CD is set upside down. CD  Radio and navigation assembly INSPECTION PROCEDURE H ...

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