1. INSTALL FRONT SEAT CUSHION SHIELD LOWER LH
2. INSTALL FRONT SEAT CUSHION SHIELD LOWER RH
3. INSTALL RECLINING ADJUSTER INSIDE COVER LH
4. INSTALL RECLINING ADJUSTER INSIDE COVER RH
HINT: Use the same procedures for the RH side and LH side.
5. INSTALL RECLINING ADJUSTER INSIDE COVER LH
6. INSTALL RECLINING ADJUSTER INSIDE COVER RH
HINT: Use the same procedures for the RH side and LH side.
7. INSTALL SEPARATE TYPE FRONT SEAT CUSHION COVER
NOTICE:
8. INSTALL FRONT SEATBACK COVER RH
NOTICE:
Torque: 5.5 N*m (56 kgf*cm, 48 in.*lbf)
NOTICE:
NOTICE:
9. INSTALL FRONT SEAT HEADREST SUPPORT
10. INSTALL FRONT SEAT HINGE COVER LH
11. INSTALL FRONT SEAT HINGE COVER RH
12. INSTALL FRONT SEATBACK LOCK SUB-ASSEMBLY RH
Torque: 43 N*m (439 kgf*cm, 32 ft.*lbf)
13. INSTALL FRONT SEATBACK LOCK SUB-ASSEMBLY LH
Torque: 43 N*m (439 kgf*cm, 32 ft.*lbf)
14. INSTALL FRONT SEATBACK SPRING ASSEMBLY
Torque: 43 N*m (439 kgf*cm, 32 ft.*lbf)
15. INSTALL FRONT SEATBACK BOARD RH
16. INSTALL FRONT SEAT BACK SHIELD LH
17. INSTALL FRONT SEAT INNER RH ARMREST ASSEMBLY
Torque: 20 N*m (200 kgf*cm, 14 ft.*lbf)
18. INSTALL FRONT SEAT TRACK COVER RH FRONT OUTER
19. INSTALL FRONT SEAT TRACK COVER RH FRONT INNER
20. INSTALL FRONT SEAT CUSHION SHIELD RH
21. INSTALL RECLINING ADJUSTER RELEASE HANDLE RH
22. INSTALL FRONT SEAT INNER BELT ASSEMBLY RH
Torque: 42 N*m (428 kgf*cm, 31 ft.*lbf) HINT: Check that the inner sat belt assembly moves smoothly.
23. INSTALL FRONT SEAT CUSHION SHIELD INNER RH
24. INSTALL OCCUPANT CLASSIFICATION ECU
In the vicinity of the steering wheel
Safety switch
Power windows
Exterior mirror operation
Central locking system
Unlocking
Locking
Seating comfort features
Memory function
Lights
Front fog lights
Light switch
Lights off
Daytime running lights
Parking lights
Automatic headlight control
Adaptive light functions ...
Security Horn Circuit
DESCRIPTION
During the alarm sounding state, the relay in the ECU turns on and off in a
cycle of approximately 0.2
seconds, causing the security horn to sound.
WIRING DIAGRAM
INSPECTION PROCEDURE
1 INSPECT SECURITY HORN ASSEMBLY
Disconnect the T1 security horn connector.
C ...
General information
A large number of ECU controlled systems are used in the
SIENNA. In general, ECU controlled systems are considered
to be very intricate, requiring a high level of technical
knowledge to troubleshoot. However, most problem checking
procedures only involve inspecting the ECU controlled
system's c ...