Toyota Sequoia (2005). Manual — part 563
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DIDAG–01
I28272
AVC–LAN:
Stereo Component
Amplifier Assy
Radio Receiver Assy
(w/o Navigation)
Radio and Navigation Assy
(w/ Navigation)
Rear Seat Audio Controller
: AVC LAN
–
DIAGNOSTICS
REAR SEAT AUDIO SYSTEM
DI–2047
2241
SYSTEM DESCRIPTION
1.
OUTLINE
(a)
Rear Seat Audio (RSA) system, which consists of a rear seat audio controller and a remote controller
(switch assy), enables the rear seat occupants to use headphones to listen simultaneously to a differ-
ent audio mode than the one that is selected in the front audio head unit.
2.
COMMUNICATION SYSTEM
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DIDAI–01
Vehicle brought into a workshop
4. Check the diagnostic trouble codes
DTC is not output (Go to step 6)
5. Diagnostic trouble code chart
Go to step 7
7. Circuit inspection and part inspection
10. Perform confirmation test
END
Items inside
are titles of pages in this manual,
with the page number in the bottom portion. See
the pages for detailed explanations.
P.
P.
P.
1. Customer problem analysis
P.
2. Problem Symptoms Confirmation
Symptom does
not occur
Malfunction
code
6. Problem symptoms table
P.
8. Identification of problem
Symptom occurs
Go to step 4
3. Symptom Simulation
P.
9. Repair or replace
Normal system
code
DI–2048
–
DIAGNOSTICS
REAR SEAT AUDIO SYSTEM
2242
HOW TO PROCEED WITH TROUBLESHOOTING
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DIDAJ–01
RSA SYSTEM Check Sheet
Inspector’s name:
Customer’s Name
VIN
Production Date
Licence Plate No.
Odometer Reading
/ /
km
mile
Frequency of Problem Occurrence
/ /
Constant
Intermittent ( Times a day)
Brought–in Date
Problem
Symptom
Headphone
DTC
Check
Parts name
DTC (1st time)
DTC (2nd time)
Switch Assy
Headphone Terminal
Rear Seat Audio Controller Assy
–
DIAGNOSTICS
REAR SEAT AUDIO SYSTEM
DI–2049
2243
CUSTOMER PROBLEM ANALYSIS CHECK
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DIDAK–01
DI–2050
–
DIAGNOSTICS
REAR SEAT AUDIO SYSTEM
2244
PROBLEM SYMPTOMS TABLE
RSA SYSTEM
Symptom
Suspected Areas
See page
RSA system cannot be powered.
1. Power source circuit (rear seat controller assy)
Quality of sound from wireless headphone is poor or no sound
can be heard.
1. Power source circuit (rear seat controller assy)
2. Mute signal circuit (to rear seat audio controller)
3. Sound signal circuit (to rear seat audio controller)
4. Rear seat audio controller
–
Quality of sound from headphone connected to headphone termi-
nal is poor or no sound can be heard.
1. Power source circuit (rear seat controller assy)
2. Mute signal circuit (to rear seat audio controller)
3. Sound signal circuit (Rear seat audio controller – head-
phone terminal)
4. Sound signal circuit (Radio receiver assy / radio and
navigation assy – rear seat audio controller)
REMOTE CONTROL
Symptom
Suspected Areas
See page
A remote control system does not operate.
1. Power source circuit (rear seat controller assy)
2. A remote control system does not operate
3. AVC–LAN circuit
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