2006 ACURA CSX phone

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DTC B1775:
YES
NO
YES
NO
YES
NO
23-376HandsFreeLink System
DTC Troubleshooting
HANDSFREELINK CONTROL UNIT 28P CONNECTOR
MIC (YEL)
HANDSFREELINK CONTROL UNIT 28P CONNECTOR MIC (YEL)
HFL-NAVIGATION MICROPHONE 3P CONNECTOR MIC (YEL)
Microphone Input/Output Short
to Power/Open
1. Clear the DTCs with the HDS.
2. Turn the ignition switch to LOCK (0), then turn it to
ON (II).
3. Check for DTCs with the HDS.
Go to step 4.
Intermittent failure, the system is OK at this
time.
4. Turn the ignition switch to LOCK (0).
5. Disconnect the HandsFr eeLink control unit 28P
connector.
6. Disconnect the HFL-navigation microphone 3P connector.
7. Turn the ignition switch to ON (II). 8. Measure the voltage between HandsFreeLink
control unit 28P connector terminal No. 13 and
body ground.
Short to power in the wire between the
HandsFreeLink control unit and the HFL-navigation
microphone. Replace the affected shielded
harness.
Go to step 9.
9. Turn the ignition switch to LOCK (0).
10. Check for continuity between HandsFreeLink control unit 28P connector terminal No. 13 and the
HFL-navigation microphone 3P connector terminal
No. 1.
Go to step 11.
Open in the wire between the HandsFreeLink
control unit and the HFL-navigation microphone.
Replace the affected shielded harness.
Wire side of female terminals
Wire side of female terminals
Wire side of female terminals
Is DTC B1775 indicated? Is there voltage?
Is there continuity?
08/08/21 14:18:40 61SNR030_230_0379
ProCarManuals.com
DYNOMITE -2009-

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YES
NO YES
NO
DTC B1776:
23-37723-377
HANDSFREELINK CONTROL UNIT 28P CONNECTOR
MIC SIG (GRN)
11. Disconnect navigation unit connector D (12P).
12. Turn the ignition switch to ON (II).
13. Measure the voltage between HandsFreeLinkcontrol unit 28P connector terminal No. 27 and
body ground.
Short to power in the wire between the
HandsFreeLink control unit and the navigation unit.
Replace the affected shielded harness.
Substitute a known-good microphone
(see page 23-358), then recheck. If the symptom
goes away, replace the original HFL-navigation
microphone. 1. Clear the DTCs with the HDS.
2. Turn the ignition switch to LOCK (0), then turn it to
ON (II).
3. Check for DTCs with the HDS.
Go to step 4.
Intermittent failure, the system is OK at this
time.
4. Turn the ignition switch to LOCK (0).
5. Disconnect the HandsFr eeLink control unit 28P
connector.
6. Disconnect the HFL-navigation microphone 3P connector.
(cont’d)Microphone Input/Output Short
to Ground/Open
Wire side of female terminals
Is there voltage? Is DTC B1776 indicated?
08/08/21 14:18:40 61SNR030_230_0380
ProCarManuals.com
DYNOMITE -2009-

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YES
NO
YES
NO YES
NO
23-378HandsFreeLink System
DTC Troubleshooting (cont’d)
HANDSFREELINK CONTROL UNIT 28P CONNECTOR
MIC (YEL)MIC
(BRN)
HANDSFREELINK CONTROL UNIT 28P CONNECTOR MIC (YEL)MIC
(BRN) HANDSFREELINK CONTROL UNIT 28P CONNECTOR
MIC SIG (GRN)
7. Check for continuity between body ground andHandsFreeLink control unit 28P connector
terminals No. 13 and No. 14 individually.
Short to body ground in the wire(s) between
HandsFreeLink control unit and HFL-navigation
microphone. Replace the affected shielded
harness.
Go to step 8.
8. Check for continuity between HandsFreeLink control unit the 28P connector terminal No. 13 and
No. 14.
Short in the wire(s) between the
HandsFreeLink control unit and HFL-navigation
microphone. Replace the affected shielded
harness.
Go to step 9. 9. Disconnect navigation unit connector D (12P).
10. Check for continuity between HandsFreeLink control unit 28P connector terminal No. 27 and
body ground.
Short to body ground in the wire(s) between
the HandsFreeLink control unit and the navigation
unit. Replace the affected shielded harness.
Substitute a known-good navigation unit
(see page 23-355), then recheck. If the symptom
goes away, replace the original navigation unit
(see page 23-355).
Wire side of female terminals
Wire side of female terminals Wire side of female terminals
Is there continuity?
Is there continuity? Is there continuity?
08/08/21 14:18:41 61SNR030_230_0381
ProCarManuals.com
DYNOMITE -2009-

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DTC B1792: The HFL system does not recognize all voice
prompts
YES
NO YES
NO
YES
NO
YES
NO
YES
NO
23-38223-382HandsFreeLink System
DTC Troubleshooting (cont’d) Symptom Troubleshooting
HandsFreeLink Control Unit
Internal Error
1. Clear the DTCs with the HDS.
2. Turn the ignition switch to LOCK (0), then turn it to
ON (II).
3. Check for DTCs with the HDS.
Replace the HandsFreeLink control unit.
Intermittent failure, the system is OK at this
time. 1. Connect the HDS to the DLC.
2. Clear the DTCs with the HDS.
3. Turn the ignition switch to LOCK (0), then turn it to
ON (II).
4. Check for DTCs.
Repair the indicated DTCs.
Go to step 5.
5. Check if the problem is duplicated.
Go to step 6.
The system is OK at this time. Ask the
customer to demonstrate the problem.
6. Check if the navigation system can recognize voice prompts.
Go to step 7.
Refer to the navigation system
troubleshooting (see page 23-342).
7. Pair the client’s phone to a known-good vehicle and try to duplicate the problem.
Call the HFL support desk at 888-528-7876,
and inquire if there are any known issues for the
problem. If there are no known issues, explain to
the client’s this is a system characteristic and
cannot be improved at this time.
Substitute a known-good HFL-navigation
microphone (see page 23- 358). If the problem is
still present, substitute a known-good
HandsFreeLink control unit (see page 23-388). If the
problem goes away, replace the original HFL-
navigation microphone.
Is DTC B1792 indicated?
Ar e t her e any DT Cs i nd i cat ed ?
Can the client’s problem be duplicated?
Can the voice prompts be recognized?Can y ou d upl i cat e t he pr obl em?
08/08/21 14:18:41 61SNR030_230_0385
ProCarManuals.com
DYNOMITE -2009-

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µ
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DTC B1792: The HFL system does not recognize all voice
prompts
YES
NO YES
NO
YES
NO
YES
NO
YES
NO
23-38223-382HandsFreeLink System
DTC Troubleshooting (cont’d) Symptom Troubleshooting
HandsFreeLink Control Unit
Internal Error
1. Clear the DTCs with the HDS.
2. Turn the ignition switch to LOCK (0), then turn it to
ON (II).
3. Check for DTCs with the HDS.
Replace the HandsFreeLink control unit.
Intermittent failure, the system is OK at this
time. 1. Connect the HDS to the DLC.
2. Clear the DTCs with the HDS.
3. Turn the ignition switch to LOCK (0), then turn it to
ON (II).
4. Check for DTCs.
Repair the indicated DTCs.
Go to step 5.
5. Check if the problem is duplicated.
Go to step 6.
The system is OK at this time. Ask the
customer to demonstrate the problem.
6. Check if the navigation system can recognize voice prompts.
Go to step 7.
Refer to the navigation system
troubleshooting (see page 23-342).
7. Pair the client’s phone to a known-good vehicle and try to duplicate the problem.
Call the HFL support desk at 888-528-7876,
and inquire if there are any known issues for the
problem. If there are no known issues, explain to
the client’s this is a system characteristic and
cannot be improved at this time.
Substitute a known-good HFL-navigation
microphone (see page 23- 358). If the problem is
still present, substitute a known-good
HandsFreeLink control unit (see page 23-388). If the
problem goes away, replace the original HFL-
navigation microphone.
Is DTC B1792 indicated?
Ar e t her e any DT Cs i nd i cat ed ?
Can the client’s problem be duplicated?
Can the voice prompts be recognized?Can y ou d upl i cat e t he pr obl em?
08/08/21 14:18:41 61SNR030_230_0385
ProCarManuals.com
DYNOMITE -2009-

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YES
NO YES
NO
The Bluetooth icon does not display
(the Bluetooth phone is linked)
23-38623-386HandsFreeLink System
Symptom Troubleshooting (cont’d)
HANDSFREELINK CONTROL UNIT 28P CONNECTOR
HFL MUTE (LT BLU)
NAVIGATION UNIT CONNECTOR B (24P) HFL MUTE (LT BLU)
HANDSFREELINK CONTROL UNIT 28P CONNECTOR
HFL ICON (LT GRN)
13. Check for continuity between HandsFreeLinkcontrol unit 28P connector terminal No. 3 and
navigation unit connector B (24P) terminal No. 8.
Substitute a known-good HandsFr eeLink
control unit (see page 23-388), and recheck. If the
symptom/indication goes away, replace the
original HandsFreeLink control unit. If the
symptom/indication is still present, replace the
navigation unit (see page 23-355).
Repair open in the wire between
HandsFreeLink control unit and the navigation
unit. 1. Turn the ignition switch to ON (II).
2. Disconnect navigation unit connector B (24P) and
the HandsFreeLink control unit 28P connector.
3. Check for continuity between body ground and HandsFreeLink control unit 28P connector terminal
No. 19.
Repair short to body ground in the wire
between the HandsFreeLink control unit and the
navigation unit.
Go to step 4.
Wire side of female terminals
Wire side of female terminals Wire side of female terminals
Is there continuity?
Is there continuity?
08/08/21 14:18:42 61SNR030_230_0389
ProCarManuals.com
DYNOMITE -2009-