Toyota Sienna Service Manual: Navigation Voice Circuit
DESCRIPTION
This circuit is used when the voice guidance in the navigation system is on.
WIRING DIAGRAM
INSPECTION PROCEDURE
1 CHECK HARNESS AND CONNECTOR (RADIO AND NAVIGATION ASSEMBLY - STEREO COMPONENT AMPLIFIER)
- Disconnect the radio and navigation assembly connector R13 and stereo component amplifier connector S11.
- Measure the resistance according to the value(s) in the table below.
Standard resistance
PROCEED TO NEXT CIRCUIT INSPECTION SHOWN IN PROBLEM SYMPTOMS TABLE
Reverse Signal Circuit
DESCRIPTION
The radio and navigation assembly receives a reverse signal from the
park/neutral position switch and
information about the GPS antenna, and then adjusts vehicle position.
WIRING DIAG ...
Display Signal Circuit between Television Display Assembly and Radio
and Navigation Assembly
DESCRIPTION
This circuit sends a DVD image signal from the television display assembly to
the radio and navigation
assembly.
WIRING DIAGRAM
INSPECTION PROCEDURE
1 CHECK HARNESS AND CONNECTO ...
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Read vin (vehicle identification number)
(a) The VIN reading process is shown in the flowchart
below. Reading the VIN stored in the ECM is
necessary when comparing it to the VIN provided
with the vehicle.
(b) Read the VIN using the intelligent tester.
(c) Check the vehicle's VIN.
(d) Connect the intelligent tester to the DLC3.
...
