Toyota Sienna Service Manual: Disassembly
1. REMOVE NO. 1 HEADLIGHT BULB (HALOGEN HEADLIGHT)

- Turn in the direction indicated by the arrow and
remove the No. 1 headlight bulb.
2. REMOVE DISCHARGE HEADLIGHT BULB (DISCHARGE HEADLIGHT)

- Turn in the direction indicated by the arrow and
disconnect the socket.


- Release the lock of the set spring and remove the
discharge headlight bulb as shown in the illustration.
3. REMOVE NO. 2 HEADLIGHT BULB

- Turn in the direction indicated by the arrow and
remove the No. 2 headlight bulb.
4. REMOVE FRONT TURN SIGNAL LIGHT BULB

- Turn in the direction indicated by the arrow and
remove the front turn signal light bulb and front turn
signal light socket as a unit.
- Remove the front turn signal light bulb from the front
turn signal light socket.
5. REMOVE FRONT SIDE MARKER LIGHT BULB

- Turn in the direction indicated by the arrow and
remove the side marker light bulb and side marker
light socket as a unit.
- Remove the side marker light bulb from the side
marker light socket.
6. REMOVE LIGHT CONTROL ECU (DISCHARGE HEADLIGHT)

- Remove the 4 screws and headlight cover.
- Remove the headlight gasket.

- Remove the 2 screws.

- Disengage the claw.
- Disconnect the connector and remove the light
control ECU.

- Remove the headlight leveling motor assembly as
shown in the illustration.
- Remove the headlight leveling motor base packing.
1. DISCONNECT CABLE FROM NEGATIVE BATTERY
TERMINAL
2. REMOVE FRONT BUMPER ASSEMBLY
3. REMOVE HEADLIGHT ASSEMBLY
Disconnect the connectors.
Remove the bolt, 3 screws and headligh ...
1. VEHICLE PREPARATION FOR HEADLIGHT AIMING
ADJUSTMENT
Prepare the vehicle:
Ensure there is no damage or deformation to the
body around the headlights.
Fill the fuel t ...
Other materials:
DTC check / clear
1. CHECK DTC (USING INTELLIGENT TESTER)
Checking DTCs.
Connect the intelligent tester to the DLC3.
Turn the ignition switch ON.
Read DTCs by following the prompts on the
tester screen.
HINT:
Refer to the intelligent tester operator's manual
for further deta ...
Precaution
1. TIRE PRESSURE WARNING SYSTEM PRECAUTION
(a) When the tire pressure warning light comes on,
immediately check the tire pressure of the tire and
adjust it to the specified value. (The tire pressure
warning light will come on after blinking for 1 minute
if there is an open in the tire press ...
DSP Error
DTC 44-78 DSP Error
DESCRIPTION
DTC No.
DTC Detecting Condition
Trouble Area
44-78
An error occurs during the decode process (MP3/
WMA).
-
INSPECTION PROCEDURE
HINT:
After the inspection is completed, clear the DTCs.
NOTICE:
Thi ...