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:
Coolant
Replacement
1. REMOVE NO. 1 ENGINE UNDER COVER (See page
EM-26)
2. REMOVE V-BANK COVER SUB-ASSEMBLY (See
page EM-28)
3. DRAIN ENGINE COOLANT
(a) Loosen the radiator drain cock plug.
HINT:
Collect the coolant in a container and dispose of it
according to the regulations in your area.
(b ...
Automatic door locking and unlocking systems
The following functions can be set or cancelled: For instructions on
customizing, refer to
Function
Operation
Shift position linked door
locking function
Shifting the shift lever out of P locks all the
doors
Shift position linked door
unlocking function
...
Vehicle Speed Sensor Malfunction
DTC P0500 Vehicle Speed Sensor Malfunction
DTC P0503 Vehicle Speed Sensor "A" Intermittent / Erratic /
High
DESCRIPTION
The cruise control system uses the same vehicle speed signal that is sent to the
ECM for the SFI system.
If DTC P0500 is detected, perform the diagnosis using th ...
