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05-1207
DIAGNOSTICS - AUDIO SYSTEM
05BPU-02
TERMINALS OF ECU
1. RADIO RECEIVER ASSY (6 SPEAKER)
R5 R6 R8 R9
I33885
Terminal No. (Symbols) Wiring Color Condition STD Voltage (V)
A waveform synchro-
R5-1 (FR+) - R5-7 (GND) LG - W-B Audio system is playing nized with sounds is
output
A waveform synchro-
R5-2 (FL+) - R5-7 (GND) P - W-B Audio system is playing nized with sounds is
output
R5-3 (ACC+B) - R5-7 (GND) GR - W-B Ignition switch ACC 10 to 14
R5-4 (BU+B) - R5-7 (GND) L-Y - W-B Constant 10 to 14
A waveform synchro-
R5-5 (FR-) - R5-7 (GND) L - W-B Audio system is playing nized with sounds is
output
A waveform synchro-
R5-6 (FL-) - R5-7 (GND) V - W-B Audio system is playing nized with sounds is
output
R5-7 (GND) - Body ground W-B - - Constant Continuity
R5-10 (ILL+) - R5-7 (GND) G - W-B Light control switch TAIL or HEAD 10 to 14
A waveform synchro-
R6-1 (RR+) - R5-7 (GND) R - W-B Audio system is playing nized with sounds is
output
A waveform synchro-
R6-2 (RL+) - R5-7 (GND) B - W-B Audio system is playing nized with sounds is
output
A waveform synchro-
R6-3 (RR-) - R5-7 (GND) W - W-B Audio system is playing nized with sounds is
output
A waveform synchro-
R6-6 (RL-) - R5-7 (GND) Y - W-B Audio system is playing nized with sounds is
output
Shielded -
R8-1 (SLD*1) - Body ground Always Continuity
Body ground
A waveform synchro-
R8-2 (R+*1) - R5-7 (GND) B - W-B RSE system is playing nized with sounds is
output
A waveform synchro-
R8-3 (R-*1) - R5-7 (GND) W - W-B RSE system is playing nized with sounds is
output
A waveform synchro-
R8-4 (L+*1) - R5-7 (GND) R - W-B RSE system is playing nized with sounds is
output
A waveform synchro-
R8-5 (L-*1) - R5-7 (GND) G - W-B RSE system is playing nized with sounds is
output
R8-6 (MUTE) - R5-7 (GND) R-W - W-B RSA, RSE is changing Below 1
2005 SIENNA REPAIR MANUAL (RM1163U)
Author : Date : 1390
05-1208
DIAGNOSTICS - AUDIO SYSTEM
R8-9 (TX+) P See "Service Check Mode" -
R8-10 (TX-) V See "Service Check Mode" -
R9-6 (GND) - R5-7 (GND) Y - W-B Always Below 1
Steering pad switch is not operating. 4 or more
SEEK+ switch push Approx. 0.5
R9-7 (SW1) - R5-7 (GND) LG - W-B SEEK- switch push Approx. 0.9
VOL+ switch push Approx. 2.0
VOL- switch push Approx. 3.4
Steering pad switch is not operating 4 or more
R9-8 (SW2) - R5-7 (GND) L - W-B
MODE switch push Below 2.5
Shielded -
R9-14 (SLD) - Body ground Always Continuity
Body ground
A waveform synchro-
R9-15 (RSR+) - R5-7 (GND) B - W-B RSA, RSE system is playing nized with sounds is
output
A waveform synchro-
R9-16 (RSR-) - R5-7 (GND) W - W-B RSA, RSE system is playing nized with sounds is
output
A waveform synchro-
R9-17 (RSL+) - R5-7 (GND) R - W-B RSA, RSE system is playing nized with sounds is
output
A waveform synchro-
R9-18 (RSL-) - R5-7 (GND) G - W-B RSA, RSE system is playing nized with sounds is
output
R9-19 (RMU) - R5-7 (GND) P-L - W-B RSA, RSE is changing Above 3.5
*1: w/ RSE
2. RADIO RECEIVER ASSY (6 SPEAKER, w/o RSA, RSE system)
R2 R3 R4
I35622
Terminal No. (Symbols) Wiring Color Condition STD Voltage (V)
A waveform synchro-
R2-1 (FR+) - R2-7 (GND) LG - W-B Audio system is playing nized with sounds is
output
A waveform synchro-
R2-2 (FL+) - R2-7 (GND) P - W-B Audio system is playing nized with sounds is
output
R2-3 (ACC+B) - R2-7 (GND) GR - W-B Ignition switch ACC 10 to 14
R2-4 (BU+B) - R2-7 (GND) L-Y - W-B Always 10 to 14
A waveform synchro-
R2-5 (FR-) - R2-7 (GND) L - W-B Audio system is playing nized with sounds is
output
A waveform synchro-
R2-6 (FL-) - R2-7 (GND) V - W-B Audio system is playing nized with sounds is
output
R2-7 (GND) - Body ground W-B - - Always Continuity
R2-10 (ILL+) - R2-7 (GND) G - W-B Light control switch TAIL or HEAD 10 to 14
2005 SIENNA REPAIR MANUAL (RM1163U)
Author : Date : 1391
05-1209
DIAGNOSTICS - AUDIO SYSTEM
A waveform synchro-
R3-1 (RR+) - R2-7 (GND) R - W-B Audio system is playing nized with sounds is
output
A waveform synchro-
R3-2 (RL+) - R2-7 (GND) B - W-B Audio system is playing nized with sounds is
output
A waveform synchro-
R3-3 (RR-) - R2-7 (GND) W - W-B Audio system is playing nized with sounds is
output
A waveform synchro-
R3-6 (RL-) - R2-7 (GND) Y - W-B Audio system is playing nized with sounds is
output
R4-6 (GND) - R2-7 (GND) Y - W-B Always Below 1
Steering pad switch is not operating. 4 or more
SEEK+ switch push Approx. 0.5
R4-7 (SW1) - R2-7 (GND) LG - W-B SEEK- switch push Approx. 0.9
VOL+ switch push Approx. 2.0
VOL- switch push Approx. 3.4
Steering pad switch is not operating 4 or more
R4-8 (SW2) - R2-7 (GND) L - W-B
MODE switch push Below 2.5
3. RADIO RECEIVER ASSY (10 SPEAKER)
R7 R8 R9
I33884
Terminal No. (Symbols) Wiring Color Condition STD Voltage (V)
R7-1 (BU+B) - R7-20 (GND) L-Y - W-B Always 10 to 14
R7-5 (TX+) LG-B See "Service Check Mode" -
R7-7 (MUTE) - R7-20 (GND) GR-B - W-B Audio system is changing Above 3.5
A waveform synchro-
R7-8 (R+) - R7-20 (GND) W - W-B Audio system is playing nized with sounds is
output
A waveform synchro-
R7-9 (L+) - R7-20 (GND) G - W-B Audio system is playing nized with sounds is
output
R7-1 1 (ACC+B) -
GR - W-B Ignition switch to ACC 10 to 14
R7-20 (GND)
R7-13 (ANT+B) -
P-L - W-B Radio switch ON and AM or FM 10 to 14
R7-20 (GND)
R7-15 (TX-) LG-R See "Service Check Mode" -
A waveform synchro-
R7-18 (R-) - R7-20 (GND) B - W-B Audio system is playing nized with sounds is
output
A waveform synchro-
R7-19 (L-) - R7-20 (GND) R - W-B Audio system is playing nized with sounds is
output
W-B -
R7-20 (GND) - Body ground Always Continuity
Body ground
Shielded -
R8-1 (SLD*1) - Body ground Always Continuity
Body ground
2005 SIENNA REPAIR MANUAL (RM1163U)
Author : Date : 1392
05-1210
DIAGNOSTICS - AUDIO SYSTEM
A waveform synchro-
R8-2 (R+*1) - R7-20 (GND) B - W-B RSE system is playing nized with sounds is
output
A waveform synchro-
R8-3 (R-*1) - R7-20 (GND) W - W-B RSE system is playing nized with sounds is
output
A waveform synchro-
R8-4 (L+*1) - R7-20 (GND) R - W-B RSE system is playing nized with sounds is
output
A waveform synchro-
R8-5 (L-*1) - R7-20 (GND) G - W-B RSE system is playing nized with sounds is
output
R8-6 (MUTE) - R7-20 (GND) R-W - W-B RSA, RSE is changing Below 1
R8-9 (TX+) P See "Service Check Mode" -
R8-10 (TX-) V See "Service Check Mode" -
R9-6 (GND) - R7-20 (GND) Y - W-B Always Below 1
Steering pad switch is not operating. 4 or more
SEEK+ switch push Approx. 0.5
R9-7 (SW1) - R7-20 (GND) LG - W-B SEEK- switch push Approx. 0.9
VOL+ switch push Approx. 2.0
VOL- switch push Approx. 3.4
Steering pad switch is not operating 4 or more
R9-8 (SW2) - R7-20 (GND) L - W-B
MODE switch push Below 2.5
A waveform synchro-
R9-15 (RSR+) - R7-20 (GND) B - W-B RSA, RSE system is playing nized with sounds is
output
A waveform synchro-
R9-16 (RSR-) - R7-20 (GND) W - W-B RSA, RSE system is playing nized with sounds is
output
A waveform synchro-
R9-17 (RSL+) - R7-20 (GND) R - W-B RSA, RSE system is playing nized with sounds is
output
A waveform synchro-
R9-18 (RSL-) - R7-20 (GND) G - W-B RSA, RSE system is playing nized with sounds is
output
R9-19 (RMU) - R7-20 (GND) P-L - W-B RSA, RSE is changing Above 3.5
*1: w/ RSE
4. STEREO COMPONENT AMPLIFIER
S11 S10
I33886
Terminal No. (Symbols) Wiring Color Condition STD Voltage (V)
S10-1 (B+) - S10-16 (GND) L-R - W-B Always 10 to 14
A waveform synchro-
S10-2 (SUR+) - S10-16
W - W-B Audio system is playing nized with sounds is
(GND)
output
A waveform synchro-
S10-3 (CTR+) - S10-16
L-B - W-B Audio system is playing nized with sounds is
(GND)
output
2005 SIENNA REPAIR MANUAL (RM1163U)
Author : Date : 1393
05-121 1
DIAGNOSTICS - AUDIO SYSTEM
A waveform synchro-
S10-4 (RL+) - S10-16 (GND) B - W-B Audio system is playing nized with sounds is
output
A waveform synchro-
S10-5 (RR+) - S10-16 (GND) R - W-B Audio system is playing nized with sounds is
output
A waveform synchro-
S10-6 (FL+) - S10-16 (GND) P - W-B Audio system is playing nized with sounds is
output
A waveform synchro-
S10-7 (FR+) - S10-16 (GND) LG - W-B Audio system is playing nized with sounds is
output
A waveform synchro-
S10-8 (WF2+) - S10-16
R-L - W-B Audio system is playing nized with sounds is
(GND)
output
A waveform synchro-
S10-9 (WF1+) - S10-16
L-Y - W-B Audio system is playing nized with sounds is
(GND)
output
S10-10 (B2+) - S10-16 (GND) L-R - W-B Always 10 to 14
A waveform synchro-
S10-11 (SUR-) - S10-16
L - W-B Audio system is playing nized with sounds is
(GND)
output
A waveform synchro-
S10-12 (CTR-) - S10-16
L-R - W-B Audio system is playing nized with sounds is
(GND)
output
A waveform synchro-
S10-13 (RL-) - S10-16 (GND) Y - W-B Audio system is playing nized with sounds is
output
A waveform synchro-
S10-14 (RR-) - S10-16 (GND) W - W-B Audio system is playing nized with sounds is
output
W-B -
S10-15 (GND2) - Body ground Always Continuity
Body ground
W-B -
S10-16 (GND) - Body ground Always Continuity
Body ground
A waveform synchro-
S10-17 (FL-) - S10-16 (GND) V - W-B Audio system is playing nized with sounds is
output
A waveform synchro-
S10-18 (FR-) - S10-16 (GND) L - W-B Audio system is playing nized with sounds is
output
A waveform synchro-
S10-19 (WF2-) - S10-16
W-L - W-B Audio system is playing nized with sounds is
(GND)
output
A waveform synchro-
S10-20 (WF1-) - S10-16
L-W - W-B Audio system is playing nized with sounds is
(GND)
output
A waveform synchro-
S11-1 (MUTE) - S10-16
GR-B - W-B Audio system is changing nized with sounds is
(GND)
output
A waveform synchro-
S11-2 (L-) - S10-16 (GND) R - W-B Audio system is playing nized with sounds is
output
A waveform synchro-
S11-3 (L+) - S10-16 (GND) G - W-B Audio system is playing nized with sounds is
output
A waveform synchro-
S11-4 (R-) - S10-16 (GND) B - W-B Audio system is playing nized with sounds is
output
2005 SIENNA REPAIR MANUAL (RM1163U)
Author : Date : 1394
05-1212
DIAGNOSTICS - AUDIO SYSTEM
A waveform synchro-
S11-5 (R+) - S10-16 (GND) W - W-B Audio system is playing nized with sounds is
output
S11-7 (TX-) LG-R See "Service Check Mode" -
S11-8 (TX+) LG-B See "Service Check Mode" -
S11-12 (ACC) - S10-16 (GND) GR - W-B Ignition switch ACC 10 to 14
2005 SIENNA REPAIR MANUAL (RM1163U)
Author : Date : 1395
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