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:
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 battery voltage between terminals 1 (-)
and 2 (+) of the intake air control valve. Check
that a click ...
Headlight leveling switch
ON-VEHICLE INSPECTION
1. HEADLIGHT LEVELING SWITCH
Connect the battery positive (+) lead to the terminal
1 and the battery negative (-) lead to the terminal 5.
Measure the resistance between the terminal 4 and
the battery negative (-) lead when headlight leveling
switch ...
Diagnosis system
1. CHECK DLC3
The ECU uses the ISO 15765-4 for communication
protocol. The terminal arrangement of the DLC3
complies with SAE J1962 and matches the ISO
15765-4 format.
NOTICE:
*: Before measuring the resistance, leave the
vehicle as is for at least 1 minute and do not
ope ...
