Acura CSX. Manual — part 631
*11
*12
*13
−
−
−
−
−
−
Audio unit connector
Wire color
YES
NO
From terminal
To terminals
YES
NO
Audio unit
connector
USB adapter
unit connector
Wire color
YES
NO
23-237
AUDIO UNIT CONNECTOR E (14P)
AUDIO UNIT CONNECTOR E (14P)
AUDIO UNIT CONNECTOR E (14P)
USB ADAPTER UNIT CONNECTOR A (14P)
11. Check for continuity between the terminals of audio
unit connector E (14P) and body ground according
to the table.
E5
WHT
E6
RED
E13
BLK
E14
GRN
Short to body ground in the wire(s) between
the audio unit and the USB adapter unit. Replace
the affected shielded harness.
Go to step 12.
12. Check for continuity between the terminals of audio
unit connector E (14P) according to the table.
E4 (GRY)
E5 (WHT), E6 (RED), E13 (BLK),
E14 (GRN)
E5 (WHT)
E6 (RED), E13 (BLK), E14
(GRN)
E6 (RED)
E13 (BLK), E14 (GRN)
E13 (BLK)
E14 (GRN)
Short in the wires between the audio unit
and the USB adapter unit. Replace the affected
shielded harness.
Go to step 13.
13. Check for continuity between audio unit connector
E (14P) and USB adapter unit connector A (14P)
according to the table.
E5
A5
WHT
E6
A6
RED
E13
A13
BLK
E14
A14
GRN
Substitute a known-good USB adapter unit
(see page 23-258), then reconnect all of the
connectors, and recheck. If the symptom/indication
goes away, replace the original USB adapter unit. If
the symptom/indication is still present, replace the
audio unit (see page 23-256).
Open in the wire(s) between the audio unit
and the USB adapter unit. Replace the affected
shielded harness.
Wire side of female terminals
Wire side of female terminals
Wire side of female terminals
Wire side of female terminals
Is ther e continuity?
Is ther e continuity between any of the ter minals?
Is ther e continuity?
08/08/21 14:10:53 61SNR030_230_0240
*32
SNR9ANGJ10300000000FAAT32
−
−
−
−
−
−
−
−
−
−
USB device does not function (with
navigation)
YES
NO
YES
NO
USB adapter unit
connector
USB adapter
connector
YES
NO
YES
NO
YES
NO
23-238
Audio System
USB ADAPTER UNIT CONNECTOR B (5P)
USB ADAPTER 5P CONNECTOR
NOTE:
• Check the vehicle battery condition first.
• Check the connectors for poor connections or loose
terminals.
• Check the USB device requirement:
– Mass-storage class ready digital audio player with
USB 2.0 port
– More than 256 MB of RAM
– Supports MP3, WMA, and AAC (encoded with the i-
Tunes) files, DRM files are not supported
1. Turn the ignition switch to ON (II) and turn on the
navigation unit.
2. Push the AUX button to select USB mode.
Go to step 3.
Go to step 7.
3. Turn the ignition switch to LOCK (0).
4. Connect the client’s USB device to a known-good
vehicle that is equipped with the USB adapter and
check the USB device operation.
Go to step 5.
USB device is faulty. Also check the USB
cable and USB adapter connector condition.
5. Disconnect USB adapter unit connector B (5P).
6. Check for continuity between terminals of USB
adapter connector B (5P) and the USB adapter 5P
connector according to the table.
B1
1
B2
2
B3
3
B4
4
Replace the USB adapter unit (see page
23-258).
Open in the wire(s) between the USB adapter
unit and the USB adapter. Replace the affected
shielded harness.
7. Check the XM operation on the navigation display.
Go to step 8.
Go to XM radio display is blank and no station
information is displayed troubleshooting.
8. Turn the ignition switch to LOCK (0).
9. Check that the navigation unit connectors and the
USB adapter unit connectors properly connected.
Go to step 10.
Connect the connectors, and recheck.
Terminal side of female terminals
Terminal side of male terminals
Is USB NO DAT A displayed?
Is the USB device wor king pr oper ly?
Is ther e continuity?
Ar e the system wor king pr oper ly on the navigation
scr een?
Is the connector s pr oper ly connected?
08/08/21 14:14:11 61SNR030_230_0241
*33
*34
*35
*36
+
−
−
−
−
−
−
−
−
YES
NO
YES
NO
YES
NO
YES
NO
23-239
USB ADAPTER UNIT CONNECTOR A (14P)
B (BLU)
USB ADAPTER UNIT CONNECTOR A (14P)
GND (BLK)
USB ADAPTER UNIT CONNECTOR A (14P)
SYS ACC (LT BLU)
NAVIGATION UNIT CONNECTOR E (14P)
SYS ACC (LT BLU)
10. Measure the voltage between body ground and
USB adapter unit connector A (14P) terminal No. 1.
Go to step 11.
Repair open in the wire between the
navigation unit and the USB adapter unit.
11. Turn the ignition switch to ON (II).
12. Measure the voltage between body ground and
USB adapter unit connector A (14P) terminal
No. 11.
Go to step 13.
Repair open or high resistance in the wire
between the navigation unit and the USB adapter
unit.
13. Turn the ignition switch to LOCK (0).
14. Measure the voltage between body ground and
USB adapter unit connector A (14P) terminal No. 2.
Go to step 16.
Go to step 15.
15. Measure the voltage between body ground and
navigation unit connector E (14P) terminal No. 2.
Repair open or short in the wire(s) between
the navigation unit and the USB adapter unit.
Substitute a known-good navigation unit
(see page 23-355), and recheck. If 10 V or more are
present, replace the original navigation unit.
Wire side of female terminals
Wire side of female terminals
Wire side of female terminals
Wire side of female terminals
Is ther e batter y voltage?
Is ther e less than 0.1 V ?
Is ther e 10 V or mor e pr esent?
Is ther e 10 V or mor e pr esent?
08/08/21 14:14:11 61SNR030_230_0242
*37
*38
−
−
−
−
YES
NO
Navigation
unit connector
USB adapter
unit connector
Wire color
YES
NO
23-240
Audio System
NAVIGATION UNIT CONNECTOR E (14P)
SYS ACC (LT BLU)
NAVIGATION UNIT CONNECTOR E (14P)
USB ADAPTER UNIT CONNECTOR A (14P)
16. Turn the ignition switch to ON (II).
17. Measure the voltage between body ground and
navigation unit connector E (14P) terminal No. 2.
Substitute a known-good navigation unit
(see page 23-355), and recheck. If 10 V or more are
present, replace the original navigation unit.
Go to step 18.
18. Turn the ignition switch to LOCK (0).
19. Disconnect navigation unit connector E (14P) and
USB adapter unit connector A (14P).
20. Check for continuity between terminals of
navigation unit connector E (14P) and USB adapter
unit connector A (14P) according to the table.
E9
A9
BLU
E10
A10
PNK
Substitute a known-good USB adapter unit
(see page 23-258), then reconnect all of the
connectors and recheck. If the symptom/indication
goes away, replace the original USB adapter unit. If
the symptom/indication is still present, replace the
navigation unit (see page 23-355).
Open in the wire(s) between the navigation
unit and the USB adapter unit. Replace the affected
shielded harness.
Wire side of female terminals
Wire side of female terminals
Wire side of female terminals
Is ther e 10 V or mor e pr esent?
Is ther e continuity?
08/08/21 14:14:12 61SNR030_230_0243
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