Toyota Sienna Service Manual: Removal
1. Remove no. 2 Air cleaner inlet (see page em- 28) 2. Remove air cleaner cap sub-assembly
(a) Disconnect the 3 vacuum hoses.
(b) Loosen the bolt, disconnect the 2 connectors, and remove the 2 vacuum hoses.
(c) Remove the 2 bolts, air cleaner cap sub-assembly, and air cleaner filter element.
3. REMOVE NO. 3 INTAKE AIR CONTROL VALVE ASSEMBLY
(a) Disengage the 2 claws and remove the No. 3 intake air control valve assembly.
On-vehicle inspection
1. Inspect intake air surge tank assembly
(A) inspection procedure when applying voltage
between the terminals:
(1) Disconnect the connector from the intake air
control valve.
(2) Apply bat ...
Inspection
1. Inspect no. 3 Intake air control valve
assembly
(A) inspect actuator operation.
(1) With 26.7 Kpa (200 mm hg, 7.9 In. Hg) of
vacuum applied to the actuator, check that the
actuator rod m ...
Other materials:
Catalyst System Efficiency Below Threshold
DTC P0420 Catalyst System Efficiency Below Threshold
(Bank 1)
DTC P0430 Catalyst System Efficiency Below Threshold
(Bank 2)
MONITOR DESCRIPTION
The ECM uses the sensors mounted in front of and behind the three-way
catalyst (TWC) to monitor its
efficiency. The first sensor, an Air Fuel ratio ...
Monitor result information
If you use a generic scan tool, multiply the test value by
the scaling value listed below.
...
Diagnosis system
1. DESCRIPTION
(a) When troubleshooting OBD II vehicles, the only
difference from the usual troubleshooting procedure
is to connect an OBD II scan tool complying with
SAE J1987 or a intelligent tester to the vehicle, and
read off various data output from the vehicle's ECM.
(b) OBD II reg ...
