Toyota RAV4 manuals

Toyota Sienna Service Manual: On-vehicle inspection

HINT: The type of ignition switch on this model differs according to the specifications of the vehicle. For the expressions used in this section, refer to the "EXPRESSIONS OF IGNITION SWITCH" precaution (See page ES-1).


(a) Connect the intelligent tester to the DLC3.

(b) Turn the ignition switch to the ON position.

(c) Select the following menu items: Data List / A/FS B1 S1 and O2S B1 S2.

(d) Warm up the A/F sensor with the engine speed at 2500 rpm for approximately 2 minutes.

(e) Keep the engine speed at 2500 rpm and confirm that the "A/FS B1 S1" and "A/FS BS S1" display is as shown in the illustration.




NOTICE: The A/F sensor has an output delay of a few seconds.

(f) Confirm that the "O2S B1 S2" and "A/FS BS S1" display changes between 0 to 1 V with the engine speed at 2500 rpm.

OK: The voltage output oscillates more than 8 times in 10 seconds.

  • Perform the check immediately after warming the engine up.
  • If the voltage variation could not be verified, warm up the A/F sensor again. If it could not be verified even after warming up the sensor again, check for DTCs (See page ES-39).
Air fuel ratio sensor (for 2wd)
Components ...

1. DISCONNECT CABLE FROM NEGATIVE BATTERY TERMINAL 2. REMOVE AIR FUEL RATIO SENSOR (for Bank 2 Sensor 1) (a) Disconnect the sensor connector. (b) Using SST, remove the sensor from the exhau ...

Other materials:

1. NOTES FOR CLEARANCE SONAR SYSTEM  Under the following conditions, the sensor of the clearance sonar may not operate properly:  Foreign matter such as snow or mud gets on the sensor (the detection function will return to normal when the foreign matter is no longer prese ...

How to proceed with troubleshooting
HINT:  Use these procedures to troubleshoot the power door lock control system.  The intelligent tester should be used in steps 3 and 5. 1 VEHICLE BROUGHT TO WORKSHOP 2 CUSTOMER PROBLEM ANALYSIS Interview the customer to confirm the trouble 3 INSPECT COMMUNICATION FUNCTI ...

1. INSPECT THERMOSTAT (a) Inspect the thermostat. HINT: The valve opening temperature is inscribed on the thermostat. (b) Immerse the thermostat in water and gradually heat the water. (c) Check the valve opening temperature. Valve opening temperature: 80 to 84°C (176 to 183°F) ...

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