Toyota Sienna Service Manual: Heated oxygen sensor (for 2wd)
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
(a) Disconnect the heated oxygen sensor (for Bank 2 Sensor 2) connector.
(b) Remove the 2 bolts and 2 compression springs.
(c) Remove the 6 nuts and front exhaust pipe assembly.
4. 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:
On-vehicle inspection
1. INSPECT COOLER CONDENSER CORE
(a) If the fin of the cooler condenser core is dirty, clean
it with water and dry it with compressed air.
NOTICE:
Do not damage the fin of the cooler condenser
core.
(b) If the fin of the cooler condenser core is bent, make
it straight using a screwdriver or p ...
Open in Occupant Classification ECU Battery
Positive Line
DTC B1794 Open in Occupant Classification ECU Battery
Positive Line
DESCRIPTION
This circuit consists of the occupant classification ECU and the power source
circuit (battery, fuse, wire
harness).
DTC B1794 is recorded when a malfunction is detected in the occupant
classification ECU or t ...
Customize parameters
HINT:
The following items can be customized.
NOTICE:
After confirming whether the items requested by the
customer are applicable or not for customization,
perform customize operations.
Be sure to record the current settings before
customizing.
When troubleshooting, ...
