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
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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
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- 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.
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3 RESET POWER WINDOW REGULATOR MOTOR
4 CHECK WIRE HARNESS (MASTER SWITCH - MOTOR) (MASTER SWITCH - BODY
GROUND)
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- Disconnect the D9 master switch connector.
- Disconnect the P40 motor connector (driver side).
- Check the resistance between the wire harness side
connectors.
Standard resistance
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- Check the resistance between the D9 master switch
connector and body ground.
Standard resistance
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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:
Removal
HINT:
On the RH side, use the same procedures as on the LH side.
1. REMOVE REAR NO. 1 SEAT ASSEMBLY LH
HINT:
Captain seat type:
Center seat type:
2. REMOVE REAR DOOR WEATHERSTRIP LH
3. REMOVE ROPE HOOK ASSEMBLY
4. REMOVE BACK DOOR SCUFF PLATE
5. REMOVE ROOF HEADLINING GA ...
Rear Air Conditioning Relay Circuit
DESCRIPTION
The RR A/C relay is switched on by signals from the A/C amplifier. It
supplies power to the rear blower
motor.
WIRING DIAGRAM
INSPECTION PROCEDURE
1 INSPECT RELAY (RR A/C)
(a) Remove the RR A/C relay from the No. 3 relay block.
(b) Measure the resistance according to t ...
Problem symptoms table
HINT:
Before performing verification listed in the table below,
check the fuse and relay.
Check the circuits for each problem symptom in the order
given in the table below, and proceed to the relevant page.
CLEARANCE SONAR SYSTEM:
*1: with Front Clearance Sonar
*2: wit ...