Toyota Sienna Service Manual: Power Windows do not Operate at All
DESCRIPTION
If all of the door windows do not operate, no power may be supplied to the power window master switch or the power window master switch itself may have a malfunction.
WIRING DIAGRAM
INSPECTION PROCEDURE
1 INSPECT FUSE (PWR, ECU-IG, AM1)
- Remove the fuses from the driver side J/B.
- Check the resistance.
Standard resistance: Below 1 Ω
2 INSPECT RELAY (IG1, PWR)
- Remove the relay from the driver side J/B.
- Check the resistance of the relay.
Standard resistance
3 CHECK WIRE HARNESS (TO DRIVER SIDE JUNCTION BLOCK ASSEMBLY)
- Disconnect the 1A, 1H and 1L J/B connectors.
- Check the voltage and resistance between each terminal of the wire harness side connector and the body ground.
Standard voltage
Standard resistance
4 CHECK WIRE HARNESS (TO POWER WINDOW REGULATOR MASTER SWITCH)
- Disconnect the D9 master switch connector.
- Check the voltage or resistance between each terminal of the wire harness side connector and the body ground.
Standard voltage
Standard resistance
5 CHECK WIRE HARNESS (DRIVER SIDE JUNCTION BLOCK - POWER WINDOW MASTER SWITCH)
- Disconnect the 1L and 1K J/B connectors.
- Disconnect the D9 master switch connector.
- Check the resistance between the wire harness side connectors.
Standard resistance
REPLACE DRIVER SIDE JUNCTION BLOCK ASSEMBLY
Manual Up / Down Function does not Operate on Rear RH Only
DESCRIPTION
If the manual UP/DOWN function does not operate, the power window motor, the
regulator switch or the
wire harness may be malfunctioning.
WIRING DIAGRAM
INSPECTION PROCEDURE
1 CH ...
Power Window can be Operated After Ignition Switch is Turned OFF
Even if Operative Conditions are not Met
DESCRIPTION
The multiplex network body ECU controls power supplied to the power window
master switch and each
regulator switch continuously for 45 seconds after the ignition switch is turned
OFF ...
Other materials:
Problem symptoms table
Vehicle stability control system:
TERMINALS OF ECU
1. Terminal of ECU
(*1): Models with dynamic laser cruise control
(*2): 2WD model
2. Terminal Inspection
(a) Disconnect the connector and measure the voltage or resistance on the wire harness side.
HINT: Voltage cannot be measured wit ...
Terminals of ECU
1. CHECK INSTRUMENT PANEL J/B ASSEMBLY
(MULTIPLEX NETWORK BODY ECU)
Disconnect the B6, B7 and B9 ECU connectors.
Disconnect the 1A, 1C, 1L and 1K J/B connectors.
Measure the voltage and resistance between each
terminal of the wire harness side connectors and
body gro ...
Definition of terms
Term
Definition
Monitor description
Description of what the ecm monitors and how it detects malfunctions
(monitoring purpose and its details).
Related dtcs
Diagnostic codeV
Typical enabling condition
Preconditions that allow the ecm to detect malfunc ...
