Toyota Sienna Service Manual: Installation
1. Install heated oxygen sensor (for bank 2 sensor 2) (see page ec-34)
2. Install front exhaust pipe assembly
(a) Install 2 new gaskets to the front exhaust pipe assembly.
(b) Install the front exhaust pipe assembly with the 4 nuts.
Torque: 62 n*m (632 kgf*cm, 46 ft.*Lbf)
3. INSTALL CENTER EXHAUST PIPE ASSEMBLY
(a) Using a vernier caliper, measure the free length of the compression spring.
Minimum length: 38.86 mm (1.5299 in.)
If the length is less than the minimum, replace the compression spring.
(b) Install a new gasket by hand so that its surface is flush with the front exhaust pipe assembly.
NOTICE:
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(c) Connect the 2 exhaust pipe supports, and install the center exhaust pipe assembly.
(d) Install the 2 compression springs and 2 bolts.
Torque: 43 N*m (438 kgf*cm, 32 ft.*lbf)
(e) Connect the heated oxygen sensor (for bank 2 sensor 2) connector.
4. INSTALL NO. 1 EXHAUST PIPE SUPPORT BRACKET
(a) Install the No. 1 exhaust pipe support bracket to oil pan sub-assembly with 2 new nuts.
Torque: 21 N*m (214 kgf*cm, 15 ft.*lbf) (b) Loosen the No. 1 exhaust pipe support bracket bolts.
(c) Install the clamp to No. 1 exhaust pipe support bracket.
(d) Retighten the No. 1 exhaust pipe support bracket bolts.
Torque: 21 N*m (214 kgf*cm, 15 ft.*lbf) (e) Install the clamp with the bolt.
Torque: 21 N*m (214 kgf*cm, 15 ft.*lbf)
5. INSTALL TAIL EXHAUST PIPE ASSEMBLY
(a) Install a new gasket to the center exhaust pipe assembly.
(b) Connect the 3 exhaust pipe supports, and install the tail exhaust pipe assembly.
(c) Install 2 new bolts.
Torque: 43 N*m (438 kgf*cm, 32 ft.*lbf)
6. INSTALL HEATED OXYGEN SENSOR (for Bank 1 Sensor 2) (See page EC-36) 7. CONNECT CABLE TO NEGATIVE BATTERY TERMINAL
8. INSPECT FOR EXHAUST GAS LEAK
If exhaust gas is leaking, repair the leak. Replace damaged parts as necessary.
Removal
1. Disconnect cable from negative battery
terminal
2. REMOVE HEATED OXYGEN SENSOR (for Bank 1
Sensor 2) (See page EC-32)
3. REMOVE TAIL EXHAUST PIPE ASSEMBLY
(a) Remove the 2 bolts.
(b) Discon ...
Exhaust pipe (for 4wd)
Components
...
Other materials:
Occupant Classification Sensor Power Supply
Circuit Malfunction
DTC B1793 Occupant Classification Sensor Power Supply
Circuit Malfunction
DESCRIPTION
The occupant classification sensor power supply circuit consists of the
occupant classification ECU and
the occupant classification sensors.
DTC B1793 is recorded when a malfunction is detected in the occu ...
Meter Illumination is Always Dark
DESCRIPTION
Confirm that the vehicle is equipped with the optitron meter, then
check this circuit.
The combination meter assembly receives a auto dimmer signal from the
body ECU by the multiplex
communication line.
WIRING DIAGRAM
INSPECTION PROCEDURE
1 CHECK MULTIPLEX CO ...
On-vehicle inspection
1. INSPECT FRONT PASSENGER AIRBAG ASSEMBLY
(VEHICLE NOT INVOLVED IN COLLISION)
Perform a diagnostic system check.
With the front passenger airbag assembly installed
on the vehicle, perform a visual check. If there are
any defects as mentioned below, replace the
instrumen ...
