Service Manuals, User Guides, Schematic Diagrams or docs for : . Car Manuals Toyota Sienna 2004-2007 Approved SRM 04 05 202xl ciaudio1
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05-1238
DIAGNOSTICS - AUDIO SYSTEM 05ASG-02
SOUND QUALITY IS BAD (DVD SOUND)
WIRING DIAGRAM
Multi-display Controller Sub-assy Radio Receiver Assy
11 8 1
(Shielded) (Shielded)
SG1 R26 IH3 R8 SLD
9 10 3
W W
R- R26 IH3 R8 R-
10 9 2
W B
R+ R26 IH3 R8 R+
7 12 5
W G
L- R26 IH3 R8 L-
8 11 4
W R
L+ R26 IH3 R8 L+
I35606
INSPECTION PROCEDURE
1 INSPECT MULTI-DISPLA Y CONTROLLER SUB-ASSY(R+, R-, L+, L-, SG1)
(a) Remove the multi-display controller sub-assy.
SG1 (b) Check continuity between terminals at each condition, as
shown in the chart.
Standard:
Tester connection Condition Specified condition
SG1 - Body ground Constant Continuity
R+ R- L+ L- (c) Check the voltage between terminals at each condition,
as shown in the chart.
I34698
Standard:
Tester connection Condition Specified condition
R+ - SG1 While voice sound is being produced A waveform synchronized with sound is output
R- - SG1 While voice sound is being produced A waveform synchronized with sound is output
L+ - SG1 While voice sound is being produced A waveform synchronized with sound is output
L- - SG1 While voice sound is being produced A waveform synchronized with sound is output
NG REPLACE MULTI-DISPLA Y CONTROLLER
SUB-ASSY
OK
2005 SIENNA REPAIR MANUAL (RM1163U)
Author : Date : 1421
05-1239
DIAGNOSTICS - AUDIO SYSTEM
2 CHECK HARNESS AND CONNECTOR(MULTI-DISPLA Y CONTROLLER
SUB-ASSY - RADIO RECEIVER ASSY)
(a) Disconnect the connectors from the multi-display control-
10 Speaker, Radio Receiver Assy:
ler sub-assy and radio receiver assy.
L- L+ R- R+ (1) Check continuity between terminals at each condi-
tion, as shown in the chart.
Standard:
Tester connection Specified condition
R+ - R+ Continuity
R- - R- Continuity
L+ - L+ Continuity
L- - L- Continuity
6 Speaker, Radio Receiver Assy: (2) Check for a short between terminals at each condi-
tion, as shown in the chart.
L- L+ R- R+
Standard:
Tester connection Specified condition
R+ - Body ground No continuity
R- - Body ground No continuity
L+ - Body ground No continuity
L- - Body ground No continuity
Multi-display Controller Sub-assy:
R+ R- L+ L-
I35600
NG REPAIR OR REPLACE HARNESS OR
CONNECTOR (See page 01-37 )
OK
REPLACE RADIO RECEIVER ASSY
2005 SIENNA REPAIR MANUAL (RM1163U)
Author : Date : 1422
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