Toyota RAV4 manuals

Toyota Sienna Service Manual: Operation check

1. DETECTION RANGE MEASUREMENT AND INDICATOR CHECK

  1.  Turn the IG switch ON.
  2.  Move the shift lever to the R position (when the back sonar and rear clearance sonar is checked).
  3.  With front clearance sonar: Move the shift lever to the N position (when the front clearance sonar is checked).

    NOTICE: Apply the parking brake securely so that the vehicle does not move.

  4.  Turn the clearance sonar main switch ON.
  5.  Move a φ 60 mm (2.36 in.) pole around the sensor to measure the detection range of the sensor.

DETECTION RANGE MEASUREMENT AND INDICATOR CHECK

NOTICE: The measured detection range is for the φ60 mm (2.36 in.) pole. The detection range for walls and other obstacle is different.

  1.  Check the indicator and the buzzer sounding condition when the back sonar sensor detects an obstacle.

DETECTION RANGE MEASUREMENT AND INDICATOR CHECK

Operation condition

Operation condition

HINT: Since sound waves are used for the detection range measurement, the detection range may vary a little due to the outside air temperature.

  1. Check the indicator and the buzzer sounding condition when the rear clearance sonar sensor detects an obstacle

DETECTION RANGE MEASUREMENT AND INDICATOR CHECK

Operation condition

Operation condition

HINT: Since sound waves are used for the detection range measurement, the detection range may vary a little due to the outside air temperature

  1. With front clearance sonar: Check the indicator and the buzzer sounding condition when the front clearance sonar sensor detects an obstacle.

DETECTION RANGE MEASUREMENT AND INDICATOR CHECK

Operation condition

Operation condition

HINT: Since sound waves are used for the detection range measurement, the detection ranges may vary a little due to the outside air temperature.

2. CHECK INITIAL CHECK FUNCTION

CHECK INITIAL CHECK FUNCTION

  1.  Check the initial check function for the LED and buzzer.

    Turn the ignition switch and clearance main switch ON. The LED are buzzer will operate for about 1 second +- 0.3 seconds, regardless of shift lever position or vehicle speed. The system will then begin normal detection operation.

    If the LED or buzzer is faulty, the relevant LED and buzzer operate as shown in the illustration below.

CHECK INITIAL CHECK FUNCTION

HINT:

CHECK INITIAL CHECK FUNCTION

  1.  Check the initial check function for the sensor.

    For vehicles with 4 sensors:

If the sensor is found to have an anomaly due to an open circuit or freezing for approximately 5 seconds or more, indications as shown in the following illustration appear.

CHECK INITIAL CHECK FUNCTION

HINT:

How to proceed with troubleshooting
1 VEHICLE BROUGHT TO WORKSHOP 2 CUSTOMER PROBLEM ANALYSIS 3 CHECK INITIAL CHECK FUNCTION 4 PROBLEM SYMPTOMS TABLE THE CORRESPONDING SYSTEM DOES NOT EXIST (Go to step 5) 5 BASED ON THE MALFUNCTION ...

Problem symptoms table
HINT:  Before performing verification listed in the table below, check the fuse and relay.  Check the circuits for each problem symptom in the order given in the table below, and p ...

Other materials:

Center Airbag Sensor Assembly Communication Circuit Malfunction
DTC B1790 Center Airbag Sensor Assembly Communication Circuit Malfunction DESCRIPTION The center airbag sensor assembly communication circuit consists of the occupant classification ECU and the center airbag sensor assembly. DTC B1790 is recorded when a malfunction is detected in the center ...

Installation
1. INSTALL OCCUPANT CLASSIFICATION ECU  Check that the ignition switch is off.  Check that the negative battery (-) terminal is disconnected. CAUTION: After disconnecting the negative battery terminal, wait for at least 90 seconds before starting the operation.   ...

Short in Driver Side Squib 2nd Step Circuit
DTC B1180/17 Short in Driver Side Squib 2nd Step Circuit DESCRIPTION The driver side squib 2nd step circuit consists of the center airbag sensor assembly, the spiral cable and the steering pad. The circuit instructs the SRS to deploy when deployment conditions are met. DTC B1180/17 is rec ...

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