Toyota Sienna Service Manual: Problem Symptoms Table
HINT: Use the table below to help determine the cause of the problem. Likely causes of the problem are indicated in descending order. Check each suspected area in order.
Repair or replace the faulty parts or perform adjustments as necessary.
STEERING SYSTEM 
Precaution
1. HANDLING PRECAUTIONS ON STEERING SYSTEM
(a) Be careful to replace the parts properly because
they could affect the performance of the steering
system and result in a driving hazard.
2. HANDLING ...
On-vehicle Inspection
1. CHECK STEERING WHEEL FREEPLAY
(a) Stop the vehicle and face the tires straight ahead.
(b) Rock the steering wheel gently up and down with
your hand, check the steering wheel freeplay.
Max ...
Other materials:
Checking tires
Check if the treadwear indicators are showing on the tires. Also check
the tires for uneven wear, such as excessive wear on one side of the
tread. Check the spare tire condition and pressure if not rotated.
New tread
Worn tread
Treadwear indicator
The location of treadwear indicator ...
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 ...
Disassembly
1. REMOVE CENTER CLUSTER MODULE KNOB NO.1 (for Manual Air Conditioning
System)
(a) Remove the center cluster module knob No. 1.
2. REMOVE CENTER CLUSTER MODULE KNOB NO.2 (for Manual Air Conditioning
System)
(a) Release the 2 claws fittings and remove the center
cluster module knob No ...
