1. DISCONNECT CABLE FROM NEGATIVE BATTERY TERMINAL
CAUTION: Wait for 90 seconds after disconnecting the cable to prevent the airbag working
2. REMOVE FRONT SEAT ASSEMBLY
HINT:
3. REMOVE FRONT DOOR SCUFF PLATE
4. REMOVE REAR DOOR SCUFF PLATE
5. REMOVE FRONT DOOR WEATHERSTRIP
6. REMOVE REAR DOOR WEATHERSTRIP
7. REMOVE CENTER PILLAR LOWER GARNISH
8. REMOVE FRONT SEAT OUTER BELT ASSEMBLY
NOTICE:
9. REMOVE CENTER PILLAR UPPER GARNISH

10. REMOVE FRONT SHOULDER BELT ANCHOR ADJUSTER ASSEMBLY
Front seat outer belt assembly
InstallationAdjustment
HINT:
If the malfunction does not disappear by following the
procedure in ADJUSTMENT and the rear No. 2 seat
assembly needs to be replaced, do not disassemble the rear
No. 2 seat assembly.
1. ADJUST FRONT LEG
HINT:
Perform the following procedure if the inner leg does not
lock.
P ...
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 ...
Terminals of ecu
1. A/C AMPLIFIER
HINT:
Check from the rear of the connector while it is
connected to the A/C amplifier.
(a) Waveform 1:
(b) Waveform 2: ...