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Toyota Sienna Service Manual: Heated oxygen sensor (for 2wd)

Toyota Sienna Service Manual / Engine / 2Gr-fe emission control / Heated oxygen sensor (for 2wd)

Components

Components

Removal

1. DISCONNECT CABLE FROM NEGATIVE BATTERY TERMINAL

CAUTION: Wait at least 90 seconds after disconnecting the cable from the nagative (-) battery terminal to prevent airbag and seat belt pretensioner activation.

2. REMOVE HEATED OXYGEN SENSOR (for Bank 1 Sensor 2)

(a) Disconnect the sensor connector under the center console.

(b) Using SST, remove the heated oxygen sensor.

SST 09224-00010

3. REMOVE FRONT EXHAUST PIPE ASSEMBLY

REMOVE FRONT EXHAUST PIPE ASSEMBLY

(a) Disconnect the heated oxygen sensor (for Bank 2 Sensor 2) connector.

REMOVE FRONT EXHAUST PIPE ASSEMBLY

(b) Remove the 2 bolts and 2 compression springs.

(c) Remove the 6 nuts and front exhaust pipe assembly.

REMOVE FRONT EXHAUST PIPE ASSEMBLY

4. REMOVE HEATED OXYGEN SENSOR (for Bank 2 Sensor 2)

REMOVE HEATED OXYGEN SENSOR (for Bank 2 Sensor 2)

(a) Using SST, remove the heated oxygen sensor from the front exhaust pipe assembly.

SST 09224-00010

Installation
1. INSTALL AIR FUEL RATIO SENSOR (for Bank 2 Sensor 1) (a) Using SST, install the sensor to the exhaust manifold LH. SST 09224-00010 Torque: 40 N*m (408 kgf*cm, 30 ft.*lbf) for use with SST ...

Inspection
1. INSPECT HEATED OXYGEN SENSOR (for Bank 1 Sensor 2) (a) Measure the resistance of the sensor. Standard resistance If the resistance is not as specified, replace the sensor. 2. INSPECT HE ...

Other materials:

Intake Air Temperature Circuit
DESCRIPTION The Intake Air Temperature (IAT) sensor, mounted on the Mass Air Flow (MAF) meter, monitors the IAT. The IAT sensor has a built-in thermistor with a resistance that varies according to the temperature of the intake air. When the IAT is low, the resistance of the thermistor i ...

Back 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 INSPECTION PR ...

Room Temperature Sensor Circuit
DESCRIPTION This sensor detects the cabin temperature that is used as the basis for temperature control and sends a signal to the A/C amplifier. WIRING DIAGRAM INSPECTION PROCEDURE 1 READ VALUE OF INTELLIGENT TESTER (a) Connect the intelligent tester to the DLC3. (b) Turn the ignition s ...

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