1. REMOVE RH SEAT REAR SEAT RECLINING COVER

2. REMOVE LH SEAT REAR SEAT RECLINING COVER

3. REMOVE REAR SEATBACK ASSEMBLY LH
4. REMOVE REAR NO. 2 SEAT LAP BELT ASSEMBLY CENTER WITH INNER LH
5. REMOVE NO. 2 REAR SEAT COVER BEZEL
6. REMOVE NO. 2 SEATBACK LOCK CONTROL BEZEL
7. REMOVE NO. 2 SEATBACK COVER LH

8. REMOVE REAR SEAT LOCK RELEASE STRAP ASSEMBLY

9. REMOVE REAR SEATBACK CONNECTING LH WIRE
10. REMOVE RECLINING RELEASE HANDLE SUBASSEMBLY LH
11. REMOVE NO. 2 RECLINING ADJUSTER RELEASE HANDLE LH
12. REMOVE REAR SEAT INNER BELT ASSEMBLY LH
13. REMOVE REAR NO. 2 SEAT INNER BELT ASSEMBLY LH
14. REMOVE NO. 2 SEAT CUSHION COVER SUBASSEMBLY LH
15. REMOVE LOCUS CABLE LH
16. REMOVE NO. 2 SEAT CUSHION SPRING ASSEMBLY LH
17. REMOVE REAR SEAT STAY SUB-ASSEMBLY
Removal
ReassemblyParts location
HOW TO PROCEED WITH
TROUBLESHOOTING
1 VEHICLE BROUGHT TO WORKSHOP
2 CUSTOMER PROBLEM ANALYSIS
(a) Confirm problem symptoms.
3 CHECK AND CLEAR DTCS
4 PROBLEM SYMPTOM CONFIRMATION
5 SYMPTOM SIMULATION
6 DTC CHECK (OTHER THAN MULTIPLEX DTC)
7 DTC CHART
8 PROBLEM SYMP ...
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 ...
Precaution
1. HANDLING PRECAUTIONS ON STEERING SYSTEM
(a) Be careful to replace the parts properly because
they could affect the performance of the steering
system and result in a driving hazard.
2. HANDLING PRECAUTIONS ON SRS AIRBAG
SYSTEM
(a) The SIENNA is equipped with SRS (Supplemental
Restraint Sys ...