Toyota Sienna Service Manual: Auto Up / Down Function does not Operate
DESCRIPTION
If the AUTO UP/DOWN function does not operate, any of the following troubles
may be the cause:
- When the PWR fuse or the power window relay (Marking: PWR) is
replaced with new ones, or when
the battery terminal and the connector of the power window master switch are
disconnected, the power
window memory of the fully closed position which is recorded in the power
window master switch is
erased.
- The pulse sensors in the driver side power window motor have a
malfunction.
- There is an open or short circuit in the wiring between the power
window master switch and the driver
side power window motor.
- The power window master switch has a malfunction.
WIRING DIAGRAM
INSPECTION PROCEDURE
1 CHECK MANUAL UP/DOWN FUNCTION (DRIVER SIDE)
- Check that the door glass can be operated manually.
2 CHECK ILLUMINATION OF POWER WINDOW MASTER SWITCH
- Turn the ignition switch ON.
- Operate the AUTO (drive side) switch of the master
switch.
- Check the blinking pattern of the AUTO light as shown in
the illustration.
- If pattern (1) is displayed, proceed to A.
- If pattern (2) or (3) is displayed, proceed to B.
- If the normal pattern is displayed, proceed to C.
3 RESET POWER WINDOW REGULATOR MOTOR
4 CHECK WIRE HARNESS (MASTER SWITCH - MOTOR) (MASTER SWITCH - BODY
GROUND)
- Disconnect the D9 master switch connector.
- Disconnect the P40 motor connector (driver side).
- Check the resistance between the wire harness side
connectors.
Standard resistance
- Check the resistance between the D9 master switch
connector and body ground.
Standard resistance
REPLACE POWER WINDOW REGULATOR MOTOR ASSEMBLY (DRIVER SIDE)
1. USING INTELLIGENT TESTER
Connect the intelligent tester to the DLC3.
Monitor the ECU data by following the prompts on
the tester screen.
HINT:
The intelligent tester has a & ...
DESCRIPTION
If the REMOTE UP/DOWN function does not operate, any of the following
troubles may be the cause:
There is an open or short circuit in the wiring between the power
window ma ...
Other materials:
Speed Signal Circuit
DESCRIPTION
The clearance warning ECU receives the vehicle speed signal from the
combination meter.
HINT:
A voltage of 12 V or 5 V is output from each ECU and then input to
the combination meter. The signal
is changed to a pulse signal at the transistor in the combination meter.
...
Reassembly
1. INSTALL BRAKE MASTER LESS RESERVOIR TANK CYLINDER SUB-ASSEMBLY
(a) Apply lithium soap base glycol grease to the 2 brake
master cylinder union grommets and install them to
the brake master less reservoir tank cylinder subassembly.
(b) Using a pin punch (φ 5 mm) and hammer, install the
...
Disassembly
1. REMOVE OCCUPANT CLASSIFICATION ECU
2. REMOVE FRONT SEAT CUSHION SHIELD INNER RH
Remove the screw.
Using a screwdriver, disengage the claws and
remove the cushion shield inner.
HINT:
Tape the screwdriver tip before use.
3. REMOVE FRONT SEAT INNER BELT ASSEMBLY RH
&nbs ...