Toyota Sienna Service Manual: 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.
Maximum freeplay: 30 mm (1.18 in.)
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 fa ...
Repair
1. STEERING OFF CENTER REPAIR PROCEDURE
(a) Inspect steering wheel off center.
(1) Apply masking tape to the top center of the
steering wheel and steering column upper
cover.
(2) Drive th ...
Other materials:
Inspection
1. INSPECT BRAKE DISC INSIDE DIAMETER
(a) Using a brake drum gauge or equivalent, measure
the inside diameter of the disc.
Standard inside diameter:
190 mm (7.480 in.)
Maximum inside diameter:
191 mm (7.520 in.)
2. INSPECT PARKING BRAKE SHOE LINING THICKNESS
(a) Using a ruler, measur ...
ABS Warning Light Remains ON
DESCRIPTION
If any of the following is detected, the ABS warning light remains on.
The skid control ECU connectors are disconnected from the skid control
ECU.
There is a malfunction in the skid control ECU internal circuit.
There is an open in the harness between the combination meter an ...
Rear Blower Motor Circuit
DESCRIPTION
Power to the rear blower motor is supplied from the battery via the RR A/C
relay.
The rear blower motor speed level varies between 0 and 31 based on the voltage
difference measured
between the terminals of the motor.
The voltage difference measured between the terminals of th ...
