Toyota Sienna Service Manual: Reassembly
1. INSTALL SHOCK ABSORBER ASSEMBLY FRONT LH
2. INSTALL FRONT COIL SPRING INSULATOR LOWER LH
(a) Install the front coil spring insulator lower LH onto the shock absorber assembly front LH.
3. INSTALL FRONT SPRING BUMPER LH
(a) Install the front spring bumper LH to the piston rod.
4. INSTALL FRONT COIL SPRING LH
(a) Using SST, compress the front coil spring LH.
SST 09727-30021 (09727-00010, 09727-00021, 09727-00031)
NOTICE: Do not use an impact wrench. It will damage the SST.
HINT: Use 2 SST of the same type.
(b) Install the front coil spring LH to the shock absorber assembly front LH.
HINT: Fit the front coil spring insulator lower LH into the gap of the shock absorber assembly front LH.
5. INSTALL FRONT COIL SPRING INSULATOR UPPER LH
(a) Install the front coil spring insulator upper LH as shown in the illustration.
6. INSTALL FRONT COIL SPRING SEAT UPPER LH
(a) Install the front coil spring seat upper LH to the shock absorber assembly front LH with the mark facing to the outside of the vehicle.
7. INSTALL FRONT SUSPENSION SUPPORT LH BEARING
(a) Install the front suspension support LH bearing.
8. INSTALL FRONT SUSPENSION SUPPORT SUBASSEMBLY LH
(a) Install the front suspension support sub-assembly LH with the mark facing to the outside of the vehicle.
(b) Temporarily tighten a new lock nut.
Inspection
1. INSPECT SHOCK ABSORBER ASSEMBLY FRONT LH
(a) Compress and extend the shock absorber rod and
check that there is no unusual resistance or unusual
sound during operation.
If there is any ab ...
Installation
1. INSTALL FRONT SHOCK ABSORBER WITH COIL SPRING
(a) Install the front shock absorber with coil spring as
shown in the illustration.
(b) Install the 3 nuts to the upper side of the front shoc ...
Other materials:
Front Occupant Classification Sensor RH Circuit
Malfunction
DTC B1781 Front Occupant Classification Sensor RH Circuit
Malfunction
DESCRIPTION
The front occupant classification sensor RH circuit consists of the occupant
classification ECU and the
front occupant classification sensor RH.
DTC B1781 is recorded when a malfunction is detected in the fron ...
Installation
1. INSTALL STEERING COLUMN ASSEMBLY
(a) Install the steering column assembly with the 3
bolts.
Torque: 25 N*m (255 kgf*cm, 18 ft.*lbf)
(b) Connect the connectors.
(c) Connect the wire harness clamps to the steering
column tube.
2. CONNECT STEERING INTERMEDIATE SHAFT ASSEMBLY
(a) ...
Symptom confirmation and diagnostic trouble code
HINT:
The diagnostic system in the SIENNA has various
functions.
The first function is the Diagnostic Trouble Code
(DTC) check. A DTC is a code stored in the ECU
memory whenever a malfunction in the signal circuits
to the ECU occurs. In a DTC check, a previous
malfunction's DTC can be ...