
05-1454
DIAGNOSTICS - REAR SEAT ENTERTAINMENT SYSTEM 05AU8-04
DVD IS NOT HEARD OR THE SOUND QUALITY IS POOR
WIRING DIAGRAM
Multi-display
R25 Controller
Television Display Assy Sub-assy
(Shielded) 6
10
SLD R27 SG4
W 4
R- 12
R27 AR-
W 5
11
R+ R27 AR+
W 2
14
L- R27 AL-
W 3
13
L+ R27 AL+
I35019
2005 SIENNA REPAIR MANUAL (RM1163U)
Author : Date : 1637
05-1455
DIAGNOSTICS - REAR SEAT ENTERTAINMENT SYSTEM
INSPECTION PROCEDURE
1 CHECK HARNESS AND CONNECTOR(TELEVISION DISPLAY ASSY -
MULTI-DISPLA Y CONTROLLER SUB-ASSY)
(a) Disconnect the television display assy and multi-display
Television Display Assy:
controller sub-assy connectors.
(b) In order to check for an open circuit, measure the resis-
tance between the terminals, as shown in the chart.
Standard:
Tester connection Specified condition
L- L+ - AL+ Below 1
L+ L- - L- Below 1
R- SLD
R+ R+ - AR+ Below 1
R- - AR- Below 1
Multi-display Controller Sub-assy: SLD - SG4 Below 1
(c) In order to check for a short circuit, measure the resis-
AL+ tance between the terminals, as shown in the chart.
Standard:
AR-
Tester connection Specified condition
AR+ AL-
L+ - Body ground 10 k or higher
L- - Body ground 10 k or higher
SG4 R+ - Body ground 10 k or higher
I35962
R- - Body ground 10 k or higher
SLD- - Body ground 10 k or higher
NG REPAIR OR REPLACE HARNESS OR
CONNECTOR
OK
2005 SIENNA REPAIR MANUAL (RM1163U)
Author : Date : 1638
05-1456
DIAGNOSTICS - REAR SEAT ENTERTAINMENT SYSTEM
2 INSPECT TELEVISION DISPLAY ASSY(L+, L-, R+, R-, SLD)
(a) In order to check for an open circuit, measure the resis-
tance between the terminals according to the conditions,
R- R+ as shown in the chart.
L- L+ SLD Standard:
Tester connection Condition Specified condition
SLD - Body ground Always Below 1
(b) Using an oscilloscope, check the signal waveform ac-
cording to the conditions, as shown in the chart.
I35690
Standard:
Tester connection Condition Specified condition
L+ - SLD While voice sound is being produced A waveform synchronized with sound is output
L- - SLD While voice sound is being produced A waveform synchronized with sound is output
R+ - SLD While voice sound is being produced A waveform synchronized with sound is output
R- - SLD While voice sound is being produced A waveform synchronized with sound is output
NG REPLACE TELEVISION DISPLAY ASSY
OK
REPLACE MULTI-DISPLA Y CONTROLLER SUB-ASSY
2005 SIENNA REPAIR MANUAL (RM1163U)
Author : Date : 1639