Acura CSX. Manual — part 581
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*13
*14
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Speaker
Terminal
Wire color
YES
NO
YES
NO
23-41
NAVIGATION UNIT CONNECTOR A (17P)
STEREO AMPLIFIER CONNECTOR A (20P)
B AUDIO
AMP
(LT GRN)
13. Check for continuity between body ground and the
following terminals of navigation unit connector A
(17P).
Driver’s door speaker,
Left tweeter
A12 (
)
LT GRN
A3 (
)
PNK
Front passenger’s
door speaker,
Right tweeter
A15 (
)
GRY
A7 (
)
BRN
Left rear speaker
A11 (
)
YEL
A2 (
)
BRN
Right rear speaker
A16 (
)
BLU
A8 (
)
ORN
Repair short to body ground in the wire(s)
between the navigation unit and the speaker(s).
Substitute a known-good navigation unit
(see page 23-155), and recheck. If the symptom/
indication goes away, replace the original
navigation unit.
14. Measure the voltage between stereo amplifier
connector A (20P) terminal No. 10 and body ground.
Go to step 15.
Repair open in the wire between the No. 17
(15 A) fuse in the under-hood fuse/relay box and
stereo amplifier connector A (20P) terminal
No. 10.
Wire side of female terminals
Wire side of female terminals
Is ther e continuity?
Is ther e batter y voltage?
08/08/21 14:04:41 61SNR030_230_0044
*15
*16
*17
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YES
NO
YES
NO
YES
NO
23-42
Audio System
STEREO AMPLIFIER CONNECTOR A (20P)
ACC RADIO (PUR)
STEREO AMPLIFIER CONNECTOR B (14P)
AMP ON (LT BLU)
STEREO AMPLIFIER CONNECTOR A (20P)
GND (BLK)
15. Turn the ignition switch to ON (II).
16. Measure the voltage between stereo amplifier
connector A (20P) terminal No. 9 and body ground.
Go to step 17.
Repair open in the wire between the No. 35
(7.5 A) fuse in the under-dash fuse/relay box and
stereo amplifier connector A (20P) terminal No. 9.
17. Measure the voltage between stereo amplifier
connector B (14P) terminal No. 7 and body ground.
Go to step 18.
Repair open in the wire between the stereo
amplifier connector B (14P) terminal No. 7 and
navigation unit connector B (22P) terminal
No. 20.
18. Measure the voltage between stereo amplifier
connector A (20P) terminal No. 20 and body ground.
Go to step 19.
Repair open in the wire between stereo
amplifier connector A (20P) terminal No. 20 and
body ground (G601).
19. Turn the ignition switch to LOCK (0).
Wire side of female terminals
Wire side of female terminals
Wire side of female terminals
Is ther e batter y voltage?
Is ther e batter y voltage?
Is ther e less than 0.1 V on both ter minals?
08/08/21 14:04:41 61SNR030_230_0045
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*18
*19
−
−
−
−
Speaker
Terminal
Wire color
YES
NO
Speaker
Terminal
Wire color
YES
NO
23-43
STEREO AMPLIFIER CONNECTOR A (20P)
STEREO AMPLIFIER CONNECTOR A (20P)
20. Disconnect stereo amplifier connector A (20P).
21. Measure the resistance between the following
terminals of stereo amplifier connector A (20P)
according to the table.
Driver’s door speaker
A3 (
)
LT GRN
A13 (
)
PNK
Left tweeter
A4 (
)
RED
A14 (
)
GRN
Front passenger’s
door speaker
A2 (
)
GRY
A12 (
)
BRN
Right tweeter
A1 (
)
PNK
A11 (
)
BLU
Left rear speaker
A8 (
)
YEL
A18 (
)
BRN
Right rear speaker
A7 (
)
BLU
A17 (
)
ORN
Subwoofer
A5 (
)
GRN
A15 (
)
RED
Go to step 22.
Repair open or short in the wires between the
stereo amplifier and the speaker(s).
22. Check for continuity between body ground and the
following terminals of stereo amplifier connector A
(20P).
Driver’s door speaker
A3 (
)
LT GRN
A13 (
)
PNK
Left tweeter
A4 (
)
RED
A14 (
)
GRN
Front passenger’s
door speaker
A2 (
)
GRY
A12 (
)
BRN
Right tweeter
A1 (
)
PNK
A11 (
)
BLU
Left rear speaker
A8 (
)
YEL
A18 (
)
BRN
Right rear speaker
A7 (
)
BLU
A17 (
)
ORN
Subwoofer
A5 (
)
GRN
A15 (
)
RED
Repair short to body ground in the wire(s)
between the stereo amplifier and the speaker(s).
Go to step 23.
23. Disconnect stereo amplifier connector B (14P).
Wire side of female terminals
Wire side of female terminals
Is ther e about 4
?
Is ther e continuity?
08/08/21 14:04:42 61SNR030_230_0046
*20
*21
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−
−
Stereo amplifier connector
Wire color
YES
NO
Navigation
unit connector
Stereo
amplifier
connector
Wire color
YES
NO
23-44
Audio System
STEREO AMPLIFIER CONNECTOR B (14P)
STEREO AMPLIFIER CONNECTOR B (14P)
NAVIGATION UNIT CONNECTOR A (17P)
24. Disconnect navigation unit connector A (17P).
25. Check for continuity between stereo amplifier
connector B (14P) and body ground according to
the table. Then check for continuity between the
same terminals listed in the table and stereo
amplifier connector B (14P) terminal No. 2 (the
harness shield).
B1
BLU
B8
RED
Short in the wire between the stereo
amplifier and the navigation unit. Replace the
affected shielded harness.
Go to step 26.
26. Check for continuity between navigation unit
connector A (17P) and stereo amplifier connector B
(14P) according to the table.
A3
B8
RED
A12
B1
BLU
Go to step 27.
Open in the wire between the navigation unit
and the stereo amplifier. Replace the affected
shielded harness.
Wire side of female terminals
Wire side of female terminals
Wire side of female terminals
Is ther e continuity?
Is ther e continuity?
08/08/21 14:04:42 61SNR030_230_0047
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