Toyota Sienna Service Manual: Navigation system
PARTS LOCATION
SYSTEM DIAGRAM
- System description
- How to proceed with troubleshooting
- Identification of noise source
- System normal condition check
- Display check mode
- Bluetooth tel check mode
- Navigation check mode
- Diagnosis display detailed description
- Problem symptoms table
- Terminals of ECU
- DTC check / clear
- Diagnostic trouble code chart
Navigation
...
System description
1. Radio and navigation assembly outline
Conventionally, 2 separate devices, a "radio and
display" and a "navigation ECU" are used. This
model has adopted a new type, ...
Other materials:
Fold Seat Switch Circuit
DESCRIPTION
When the fold seat switch is operated, a switch operation signal is sent to
the fold seat control ECU. The
ECU receives switch operation signals from each switch and activates the folding
motor, reclining motor,
and release actuator.
WIRING DIAGRAM
INSPECTION PROCEDURE
1 IN ...
Removal
1. REMOVE INSTRUMENT PANEL SUB-ASSEMBLY WITH PASSENGER AIRBAG ASSEMBLY
HINT:
Refer to the instructions for removal of the instrument
panel sub-assembly w/ passenger airbag assembly (See
page IP-5).
2. REMOVE HEATER TO FOOT DUCT NO.1
(a) Remove the clip and the heater to foot duct No. 1.
3 ...
Back-up Power Source Circuit
DESCRIPTION
This is the back-up power source for the A/C amplifier. Power is supplied
even when the ignition switch is
off and is used for diagnostic trouble code memory, etc.
WIRING DIAGRAM
INSPECTION PROCEDURE
1 INSPECT FUSE (ECU-B)
(a) Remove the ECU-B fuse from the engine room juncti ...
