Toyota Sienna Service Manual: Network gateway ECU
COMPONENTS
REMOVAL
1. REMOVE FRONT DOOR SCUFF PLATE LH
2. REMOVE COWL SIDE TRIM BOARD LH
3. REMOVE INSTRUMENT PANEL FINISH PANEL LOWER LH (See page IP-6)
4. REMOVE INSTRUMENT PANEL SAFETY PAD INSERT NO. 1 (See page IP-6)
5. REMOVE CLEARANCE WARNING ECU ASSEMBLY (See page PM-15)
6. REMOVE NETWORK GATEWAY ECU
- Disconnect each connector.
- Remove the nut and network gateway ECU.
INSTALLATION
1. INSTALL NETWORK GATEWAY ECU
- Install the network gateway ECU with the nut.
- Connect the connector.
2. INSTALL CLEARANCE WARNING ECU ASSEMBLY (See page PM-15)
3. INSTALL PANEL SAFETY PAD INSERT NO. 1
4. REMOVE INSTRUMENT PANEL FINISH PANEL LOWER LH
5. REMOVE COWL SIDE TRIM BOARD LH
6. REMOVE FRONT DOOR SCUFF PLATE LH
Open in One Side of CAN Branch Line
DESCRIPTION
If 2 or more ECUs and/or sensors do not appear on the intelligent tester
"Communication Bus Check"
screen, one side of the CAN branch wire may be open. (One side of the CAN-H ...
2Gr-fe ignition
...
Other materials:
No. 2 Clearance Warning Buzzer Circuit
DESCRIPTION
The clearance warning ECU receives the ultrasonic sensor signal to sound the
rear warning buzzer.
WIRING DIAGRAM
INSPECTION PROCEDURE
1 CHECK HARNESS AND CONNECTOR (CLEARANCE WARNING ECU - AIR CONDITIONER
AMPLIFIER)
Disconnect the connectors from the clearance warning ...
Erasing the entire HomeLink® memory (all three programs)
Press and hold down the 2 outside
buttons for 10 seconds until
the indicator light flashes.
If you sell your vehicle, be sure to
erase the programs stored in the
HomeLink® memory.
Before programming
Install a new battery in the transmitter.
The battery side of the transmitter must ...
Terminals of ECU
1. INSTRUMENT PANEL JUNCTION BLOCK
(MULTIPLEX NETWORK BODY ECU)
Disconnect the B6, B7 and B9 ECU connectors.
Disconnect the 1A, 1C, 1K, 1L and 1P J/B
connectors.
Check the voltage or resistance according to the
value(s) in the table below (wire harness side
connector).
...
