Toyota Sienna Service Manual: Vacuum switching valve
Components
REMOVAL
1. REMOVE VACUUM SWITCHING VALVE ASSEMBLY
(a) Remove the 2 vacuum hoses and vacuum switching valve connector.
(b) Remove the screw and vacuum switching valve.
Vacuum tank
On-vehicle inspection
1. Inspect air cleaner cap sub-assembly
(A) check that air flows from port b to port a.
(B) apply 60 kpa (450 mm hg, 18 in. Hg) of vacuum to
port b. Check that there is ...
Inspection
1. V
(a) Inspect VSV operation.
(1) Using an ohmmeter, measure the resistance
according to the value(s) in the table below.V
Standard resistance
If the result is not as specified, replace t ...
Other materials:
U151e automatic transaxle
SERVICE DATA
TORQUE SPECIFICATIONS
...
Brake Warning Light does not Come ON
WIRING DIAGRAM
See page BC-52.
INSPECTION PROCEDURE
1 INSPECT BRAKE WARNING LIGHT
(a) Disconnect the skid control ECU connector.
(b) Turn the ignition switch to the on position.
(c) Check that the BRAKE warning light comes on.
OK:
BRAKE warning light comes on.
HINT:
If troubleshooting ...
Meter Illumination is Always Dark
DESCRIPTION
Confirm that the vehicle is equipped with the optitron meter, then
check this circuit.
The combination meter assembly receives a auto dimmer signal from the
body ECU by the multiplex
communication line.
WIRING DIAGRAM
INSPECTION PROCEDURE
1 CHECK MULTIPLEX CO ...
