Toyota Sienna Service Manual: Removal
1. DISCONNECT CABLE FROM NEGATIVE BATTERY TERMINALV
| Caution: wait at least 90 seconds after disconnecting the cable from the negative (-) battery terminal to prevent airbag and seat belt pretensioner activation. |
2. Remove air fuel ratio sensor (for bank 2 sensor 1)
(a) Disconnect the sensor connector.
(b) Using SST, remove the sensor from the exhaust manifold.V
Sst 09224-00010
3. REMOVE CENTER EXHAUST PIPE ASSEMBLY
(a) Disconnect the heated oxygen sensor (for Bank 1 Sensor 2) connector under the center console.
(b) Remove the clip as shown in the illustration.
(c) Remove the 2 bolts and 2 compression springs.
(d) Remove the 2 bolts, 2 nuts and center exhaust pipe assembly.
4. REMOVE EXHAUST MANIFOLD RH
(a) Remove the nut, bolt and exhaust manifold stay.
(b) Remove the 6 nuts and exhaust manifold RH.
(c) Remove the gasket and exhaust manifold to head gasket.
5. REMOVE AIR FUEL RATIO SENSOR (for Bank 1 Sensor 1)
(a) Using SST, remove the sensor.
SST 09224-00010
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& ...
Inspection
1. Inspect air fuel ratio sensor
(A) measure the resistance of the sensor.
Standard resistance
If the resistance is not as specified, replace the
sensor.
...
Other materials:
Skid Control Buzzer Circuit
DESCRIPTION
The skid control buzzer sounds and SLIP indicator blinking during VSC
operation.
WIRING DIAGRAM
INSPECTION PROCEDURE
1 PERFORM ACTIVE TEST USING INTELLIGENT TESTER (SKID CONTROL BUZZER)
(a) Connect the intelligent tester to the DLC3.
(b) Start the engine.
(c) Select the ...
Oxygen Sensor Heater Control Circuit
HINT:
Sensor 2 refers to the sensor mounted behind the Three-Way Catalytic
Converter (TWC) and located
furthest from the engine assembly.
DESCRIPTION
Refer to DTC P0136 (See page ES-160).
HINT:
When any of these DTCs are set, the ECM enters fail-safe mode. The ECM turns
off the Heated ...
Safety Connect LED light Indicators
When the engine switch is turned to the “ON” position (vehicles without
a smart key system) or IGNITION ON mode (vehicles with a smart
key system), the red indicator light comes on for 2 seconds then turns
off. Afterward, the green indicator light comes on, indicating that the
service is act ...
