Toyota Sienna Service Manual: Installation
1. INSTALL OCCUPANT CLASSIFICATION ECU
- Check that the ignition switch is off.
- Check that the negative battery (-) terminal is disconnected.
CAUTION: After disconnecting the negative battery terminal, wait for at least 90 seconds before starting the operation.
- Install the occupant classification ECU.
- Connect the 2 connectors to the occupant classification ECU.
NOTICE:
- If the occupant classification ECU has been dropped, or there are any cracks, dents or other defects in the case or connector, replace it with a new one.
- When installing the occupant classification ECU, be careful that the SRS wiring does not interfere with other parts and that it is not pinched between other parts.
2. INSTALL FRONT SEAT ASSEMBLY (for Manual Seat)
3. INSTALL FRONT RH SEAT ASSEMBLY (for Power Seat)
4. CONNECT CABLE TO NEGATIVE BATTERY TERMINAL
5. PERFORM INITIALIZATION
- Perform initialization.
HINT: Some systems need initialization when disconnecting the cable from the negative battery terminal.
6. INSPECT SLIDE ADJUSTER LOCK (for Manual Seat)
7. INSPECT POWER SEAT OPERATION (for Power Seat)
8. INSPECT SEAT HEATER OPERATION (w/ Seat Heater System)
9. INSPECT SRS WARNING LIGHT
- Inspect the SRS warning light
Removal
1. PRECAUTION
CAUTION:
Be sure to read "PRECAUTION" thoroughly before
servicing.
2. DISCONNECT CABLE FROM NEGATIVE BATTERY
TERMINAL
CAUTION:
Wait for 90 seconds after disconnecting th ...
Other system
...
Other materials:
Removal
1. REMOVE FRONT SEAT INNER BELT ASSEMBLY
HINT:
Refer to the instructions for disassembly of the front
seat assembly (for flat type).
Refer to the instructions for disassembly of the front
seat assembly (for manual seat).
Refer to the instructions for disassembly of the ...
Diagnosis system
1. CHECK DLC3
The vehicle uses ISO 15765-4 communication
protocol.
The terminal arrangement of the DLC3 complies
with SAE 1962 and matched the ISO 15765-4
format.
If the result is not as specified, the DLC3 may have
a malfunction. Repair or replace the harness and
connecto ...
Terminals of ecu
Check tire pressure warning ecu
HINT:
Inspect the connectors from the back side while the
connectors are connected.
(a) Disconnect the tire pressure warning antenna and
receiver connector.
(b) Measure the voltage according to the value(s) in the
table below.
(c) Connect the tire pr ...
