Toyota Sienna Service Manual: Inspection
1. INSPECT PARK/NEUTRAL POSITION SWITCH ASSEMBLY OPERATION
(a) Apply the parking brake and turn the ignition switch to the ON position.
(b) Depress the brake pedal and check that the engine starts only when the shift lever is in the N or P position and the engine does not start when the shift lever is in other positions.
(c) Check that the back up light comes on and the reverse warning buzzer sounds only when the shift lever is in the R position and the light and buzzer do not operate when the shift lever is in other positions.
(d) If a failure is found, check the park/neutral position switch for continuity.
2. INSPECT PARK/NEUTRAL POSITION SWITCH ASSEMBLY
(a) Jack up the vehicle.
(b) Disconnect the park/neutral position switch connector.
(c) Measure the resistance according to the value(s) in the table below when the shift lever is moved to each position.
Resistance 
ADJUSTMENT
1. ADJUST PARK/NEUTRAL POSITION SWITCH ASSEMBLY
(a) Loosen the 2 bolts of the park/neutral position switch and move the shift lever to the N position.
(b) Align the groove with the neutral basic line.
(c) Hold the switch in position and tighten the 2 bolts.
Torque: 5.4 N*m (55 kgf*cm, 48 in.*lbf) (d) After adjustment, perform the inspection described in park/neutral position switch assembly operation.
Removal
1. REMOVE BATTERY
2. REMOVE AIR CLEANER ASSEMBLY
HINT:
(See page EM-26)
3. SEPARATE TRANSMISSION CONTROL CABLE ASSEMBLY
(a) Remove the nut from the control shaft lever.
(b) Disconnect the ...
Installation
1. INSTALL PARK/NEUTRAL POSITION SWITCH ASSEMBLY
(a) Install the park/neutral position switch to the manual
valve shaft.
(b) Temporarily install the 2 bolts.
(c) Place a new lock plate a ...
Other materials:
Removal
HINT:
Replace the RH side using the same procedures as for the
LH side.
1. REMOVE FRONT WHEEL
2. REMOVE FRONT AXLE HUB LH NUT (See page DS-
5)
3. SEPARATE SPEED SENSOR FRONT LH (See page
DS-5)
4. SEPARATE FRONT DISC BRAKE CALIPER ASSEMBLY LH
(a) Remove the 2 bolts and separate the front ...
Airbag ECU Communication Stop
DTC B1281 Airbag ECU Communication Stop
DESCRIPTION
DTC B1281 is output when communication between the airbag ECU and the
multiplex network gateway
ECU stops for more than 10 seconds.
DTC No.
DTC Detection Condition
Trouble Area
B1281
Airbag ECU communi ...
Installation
1. INSTALL 3 POINT TYPE NO. 2 REAR SEAT BELT ASSEMBLY
Check the degree of tilt when the belt begins to lock
the ELR.
Check that the belt does not lock within 15 of
tilt in all directions but that the belt locks with
over 45 of tilt, when gently moving the
retractor.
If ...
