Acura CSX. Manual — part 665
*02
HFL Buttons
Hard Reset
Linking
Pairing
Soft Reset (cellular phone)
Software Version
Standard Ringtone
23-369
A
B
• HFL TALK button (A): Use this button on the steering
wheel to give commands. Press the button before a
voice command is given.
• HFL BACK button (B): Use this button on the steering
wheel to end a call or return to a previous prompt in
the HFL menu. Pressing the button twice or holding it
down returns you to the HFL main menu.
Hard resets clear the saved settings in the cell phone
and restores it to the factory defaults. A hard reset
should be done only as a last resort (see the sell phone
owner’s manual for more information).
This is when your paired phone is actively ready to use
the HFL system. You can pair up to six phones to the
HFL system, but only one phone can be linked at a time.
If two paired phones are in the vehicle, only the phone
that is linked can use the HFL system and functions. The
second phone must be used as a normal handset.
A description for linking two Bluetooth devices together.
In this case, you are linking a cell phone with the HFL
system. After the pairing process is complete, the
devices are able to recognize each other and
communicate wirelessly via Bluetooth.
This helps to restore the basic functions of the phone.
To do a soft reset, turn the phone power off, remove
and reinsert the cell phone battery, then turn the phone
back on.
This refers to the software version loaded in the cell
phone. The software version that was tested and
determined to be compatible with the HFL system may
be listed on the HFL website. Not all software versions
are compatible with the HFL system.
These ringtones come factory-installed on the cell
phone.
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HandsFreeLink Control Unit
DTC
Description
DTC type
Page
23-370
HandsFreeLink System
DTC Troubleshooting Index
B1750
Communication bus line error (Bus-off)
Loss of
communication
(see page 22-107)
B1775
Microphone input/output short to power/open
Signal error
(see page 23-376)
B1776
Microphone input/output short to ground/open
Signal error
(see page 23-377)
B1779
HFL switch (HFL TALK/HFL BACK buttons) circuit open/
short
Signal error
(see page 23-379)
B1780
HFL switch (HFL TALK/HFL BACK buttons) circuit short
Signal error
(see page 23-381)
B1792
HandsFreeLink control unit internal error
Internal error
(see page 23-382)
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Symptom
Diagnostic procedure
Also check for
23-371
Symptom Troubleshooting Index
HFL does not respond
Control Unit Input Test
(see page 23-388)
Check and repair all CAN related DTCs
The Bluetooth icon in the
navigation display is grayed-out
There is no HFL-compatible
phone paired to the vehicle. Pair
an approved HFL-compatible
phone to the vehicle
The phone must be on the Honda list of
approved Bluetooth phones and
configured correctly. For a current list of
approved phones, go to www.acura.com/
handsfreelink, or call 888-528-7876 for
further assistance.
Check the Diagnostic Menu and use the
Navi System Link
The Honda approved Bluetooth
phone is having problems pairing
to the vehicle
HFL System Troubleshooting
(see page 23-373)
The phone must be on the Honda list of
approved Bluetooth phones and
configured correctly. For a current list of
approved phones, go to www.acura.com/
handsfreelink, or call 888-528-7876 for
further assistance.
Check the Diagnostic Menu and use the
Navi System Link
The Honda approved Bluetooth
phone cannot use all its functions
HFL System Troubleshooting
(see page 23-373)
The phone must be on the Honda list of
approved Bluetooth phones and
configured correctly. For a current list of
approved phones, go to www.acura.com/
handsfreelink, or call 888-528-7876 for
further assistance.
Check the Diagnostic Menu and use the
Navi System Link
The Honda approved Bluetooth
phone does not place or receive
calls using the HFL system
HFL System Troubleshooting
(see page 23-373)
The phone must be on the Honda list of
approved Bluetooth phones and
configured correctly. For a current list of
approved phones, go to www.acura.com/
handsfreelink, or call 888-528-7876 for
further assistance.
Check the Diagnostic Menu and use the
Navi System Link
The client wants the HFL system
reset (all phones and address
information cleared from the HFL
system)
Clearing the system (see page
23-367)
See the owner’s manual for additional
information.
The HFL system is locked and the
pass code has been lost or
forgotten
Symptom Troubleshooting
(see page 23-383)
The HFL system does not
recognize all voice prompts
Symptom Troubleshooting
(see page 23-382)
Also see Voice control tips.
The address book does not
transfer from Honda approved
Bluetooth phone to HFL system
There is no HFL compatible
phone paired to the vehicle or
the approved phone does not
support the function. Pair an
approved HFL compatible
phone to the vehicle.
The phone must be on the Honda list of
approved Bluetooth phones and
configured correctly. For a list of approved
phones, go to www.acura.com/
handsfreelink, or call 888-528-7876.
The HFL messages cannot be
heard or are weak
Symptom Troubleshooting
(see page 23-383)
Excessive interior noise (open windows,
vents blowing on microphone, etc.).
The Bluetooth icon does not
display (the Bluetooth phone is
linked)
Symptom Troubleshooting
(see page 23-386)
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*01
*02
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HandsFreeLink Control Unit Inputs and Outputs
HANDSFREELINK CONTROL UNIT 28P CONNECTOR
Cavity
Wire Color
Connect to
23-372
HandsFreeLink System
System Description
HANDSFREELINK CONTROL UNIT 28P CONNECTOR
1
BLK
Body ground to G501 (GND)
2
BLU
HFL switch (HFL STRG SW)
3
LT BLU
Navigation unit (HFL MUTE)
6
WHT
Navigation unit (HFL/NAVI COMM4)
7
RED
Navigation unit (HFL/NAVI COMM3)
8
GRY
Shield for terminals No. 6, No. 7, No. 20, and No. 21 (HFL/NAVI COMM SH)
11
BLU
Navigation unit (TELM SIG
)
12
GRY
Shield for terminals No. 13 and No. 14 (MIC SH)
13
YEL
HFL-navigation microphone (MIC
)
14
BRN
HFL-navigation microphone (MIC
)
15
WHT
No. 23 (10 A) fuse in the under-dash fuse/relay box (
B)
16
PUR
No. 35 (7.5 A) fuse in the under-dash fuse/relay box (ACC)
18
PNK
B-CAN communication (B-CAN)
19
LT GRN
Navigation unit (HFL icon)
20
BLK
Navigation unit (HFL/NAVI COMM1)
21
GRN
Navigation unit (HFL/NAVI COMM2)
25
PNK
Navigation unit (TELM SIG
)
26
GRY
Shield for terminals No. 11 and No. 25 (TELM SIG SH)
27
GRN
Navigation unit (MIC SIG
)
28
RED
Navigation unit (MIC SIG
)
: The shielded wires have a heat-shrunk tube insulating the outside of the wire. The color of the insulating tube,
typically black or dark gray, may not match the color of the wire listed on the schematic.
Wire side of female terminals
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