Inspection
1. INSPECT POWER WINDOW REGULATOR MASTER SWITCH ASSEMBLY (w/ Jam Protection Function)

Standard: AUTO (driver side) switch

Passenger side switch

Rear LH switch

Rear RH switch

If the result is not as specified, replace the switch assembly.
2. INSPECT POWER WINDOW REGULATOR MASTER SWITCH ASSEMBLY (w/o Jam Protection Function)

Standard: AUTO (driver side) switch

Passenger side switch

Rear LH switch

Rear RH switch

If the result is not as specified, replace the switch assembly.
Problem symptoms table
Front passenger side power
window switchDisassembly
1. REMOVE TRANSFER COVER GASKET
(a) Remove the transfer gasket from the transfer
assembly.
2. REMOVE TRANSFER CASE BREATHER PLUG
(a) Using a screwdriver and a hammer, remove the
transfer case breather plug from the No. 1 transfer
case cover.
NOTICE:
Be careful not to damage the conta ...
Fuel pump resistor
Components
REMOVAL
1. REMOVE FUEL PUMP RESISTOR
(a) Disconnect the connector.
(b) Remove the nut and fuel pump resistor.
INSPECTION
1. INSPECT FUEL PUMP RESISTOR
(a) Inspect fuel pump resistor.
(1) Using an ohmmeter, measure the resistance
between the terminals.
Standard resi ...
When servicing full-time 4wd vehicles
The full-time 4WD SIENNA is equipped with the open
center differential system.
If incorrect preparations or test procedures are used, the
test will not only be unsuccessful, but may be dangerous
as well.
Therefore, before beginning any such servicing or test,
be sure to check the following ...