Toyota Sienna Service Manual: Removal
1. REMOVE WINDSHIELD WIPER MOTOR ASSEMBLY
2. REMOVE FRONT OUTER COWL TOP PANEL SUBASSEMBLY
3. DRAIN ENGINE COOLANT
4. REMOVE V-BANK COVER SUB-ASSEMBLY
5. REMOVE NO. 2 AIR CLEANER INLET
6. REMOVE NO. 1 AIR CLEANER INLET
7. REMOVE AIR CLEANER CAP SUB-ASSEMBLY
- Disconnect the 3 vacuum hoses.
- Remove the No. 2 ventilation hose and air cleaner hose band.
- Disconnect the vacuum hose (EVAP) from the air cleaner hose.
- Disconnect the mass air flow meter connector.
- Remove the 2 bolts and air cleaner cap subassembly.
8. REMOVE AIR CLEANER CASE SUB-ASSEMBLY
9. REMOVE THROTTLE BODY
- Disconnect the throttle body connector and clamp.
- Disconnect the 2 water by-pass hoses from the throttle body.
- Remove the 4 bolts and throttle body.
- Remove the throttle body gasket from the intake air surge tank.
On-vehicle inspection
1. INSPECT THROTTLE BODY
Listen to the throttle control motor operating sounds.
Turn the ignition switch to the ON position.
When pressing the accelerator pedal position
sens ...
Inspection
1. INSPECT THROTTLE BODY
Using an ohmmeter, measure the resistance
between the terminals.
Standard resistance
If the result is not as specified, replace the throttle
body asse ...
Other materials:
Perform signal check
HINT:
When entering signal check mode, the tire pressure
warning ECU sets all the signal check DTCs first.
After completing signal check for each inspection
item, the DTCs for systems that are determined to be
normal by the tire pressure warning ECU will be
erased.
The DTCs f ...
Monitor drive pattern
1. MONITOR DRIVE PATTERN FOR ECT TEST
(a) Perform this drive pattern as one method to
simulate the detection conditions of the ECT
malfunctions. (The DTCs may not be detected due
the actual driving conditions. And some codes may
not be detected through this drive pattern.)
HINT:
Preparation f ...
Removal
NOTICE:
Always wear safety gloves because the edges of the
seatback frame and seat adjuster are sharp and may
cause injury.
Work must be started more than 90 seconds after the
ignition switch is turned to the LOCK position and the
negative (-) terminal cable is disconnected ...
