
05-1348
DIAGNOSTICS - NAVIGATION SYSTEM 05NRB-01
POWER SOURCE CIRCUIT (STEREO COMPONENT AMPLIFIER
ASSY)
CIRCUIT DESCRIPTION
This circuit provides power to the stereo component amplifier assy.
WIRING DIAGRAM
Stereo Component
Engine Room J/B J24 Amplifier Assy
1 RAD No.3 3 14 J/C 2 4 J/C 1
W L-R L-R L-R L-R
2D 2A J7 J8 IG1 S10 B+
C C
C 10
Driver Side J/B L-R
S10 B2+
J23
ACC Relay J/C
1 RAD2 24 3 12
W GR GR GR
1A 1L IF2 S11 ACC
5 3 A A
P 9 16
W-B
1H 1L
2 1 I15
Ignition SW
AM1 10
W-L
1H
1 AM1 ACC 3
FL Block
1 1
W W W-B
F7 F6
1 ALT J23
W J/C
F8 16
W-B W-B
S10 GND
B B
W B
15
S10 GND2
7
W-B W-B
IF2
FL MAIN
Battery
IE IF
I45228
2005 SIENNA REPAIR MANUAL (RM1163U)
Author : Date : 1531
05-1349
DIAGNOSTICS - NAVIGATION SYSTEM
INSPECTION PROCEDURE
1 INSPECT STEREO COMPONENT AMPLIFIER ASSY(B+, B2+, ACC, GND, GND2)
Wire Harness View: (a) Disconnect the stereo component amplifier assy connec-
tors S10 and S11.
(b) Measure the resistance according to the value(s) in the
S10