Handsfreelink System (4-cyl) Acura TSX II

Scheme 1123

Scheme 1124

Scheme 1125

1. Make sure the ignition switch is in LOCK (0).
2. Connect the HDS to the data link connector (DLC) (A) located under the driver's side of the dashboard.
3. Turn the ignition switch to ON (II).
4. Make sure the HDS communicates with the vehicle and the HandsFreeLink™ control unit. If it does not, troubleshoot the DLC circuit (see «DLC CIRCUIT TROUBLESHOOTING»(/acura/tsx/ii-2008-2014/remont/testing-diagnostics/#pgm-fi-system-4-cyl__dlc-circuit-troubleshooting) ).
5. Select HandsFreeLink™ in the BODY ELECTRICAL menu.
6. Select DTCs in the HandsFreeLink™ menu.
7. Check for DTCs. If any DTCs are indicated, write down the DTCs, then go to the indicated DTC troubleshooting. If no DTCs are indicated, refer to «SYMPTOM TROUBLESHOOTING»(/acura/tsx/ii-2008-2014/remont/entertainment-systems/#handsfreelink-system-4-cyl) . NOTE: After troubleshooting, clear the DTCs with the HDS. For specific operations, refer to the HDS user's manual.

Disconnecting

To disconnect the connector, pull the lever (A) while pushing the lock tab (B) down, then pull the connector (C).

Scheme 1126

Connecting

To connect the connector, push the connector into the connector sleeve (A). As the connector is pressed in, the lever (B) moves to the locked position.

Scheme 1127

Introduction

The HFL system works only with Acura approved Bluetooth®-enabled cell phones with a hands-free profile. If you are not sure if your cell phone is compatible with the HFL system, Acura has a dedicated call center at 888-528-7876 and web site www.acura.com/handsfreelink, to answer your questions. You can also contact the call center for information about phone software versions and settings.

The HFL system allows you to make and receive hands-free calls. It cannot control the phone's performance (call quality and signal strength). For more information about performance and performance problems, refer to DROPPED CALLS .

Always call the HFL call center first, not Tech Line because the HFL call center has the latest information about cell phone software versions, settings and other issues.

Most HFL complaints are due to pairing, configuration, or compatibility issues. Contact the Acura call center before replacing the HandsFreeLink™ control unit.

The call center is open Monday thru Friday from 6:00 a. m. to 6:00 p.m. CST; Saturday from 7:00 a.m. to 6:00 p.m. CST; and Sunday from 8:00 a.m. to 6:00 p.m. CST.

Checking Cell Phone Compatibility

The most important step in troubleshooting HFL issues is to identify the client's phone model, the software version, and the cellular carrier that experiences the HFL problem. Not all phones with the Bluetooth feature and a hands-free profile are compatible with the Acura HFL system.

Go to www.acura.com/handsfreelink or call the Acura's dedicated call center at 888-528-7876, and check if the client's phone is approved to work with the Acura HFL system.

Note. These approved and currently testing phone model lists are constantly changing, so make sure you view them frequently. Phones are added as they are approved. Phones can be removed from the approved list if a software bug is discovered that makes the phone incompatible. There phones can be added back to the approved list if the phone manufacturer corrects the bug. If the software bug is corrected, a new software version is created and may be listed in the Supported Features section of the phone. If you have trouble finding the phone's software version, you can call the HFL call center at 888-528-7876. The Acura web site now includes the software versions that are tested and approved. When software versions are listed, you need to know which version is loaded on the phone to help you troubleshoot the client's complaint. If you cannot access the Acura web site, call the Acura's dedicated call center at 888-528-7876 for further assistance.

Voice Control Tips and Improving Voice Recognition

To give a voice command to the HFL system, press and release the TALK button (A) or the HFL TALK button (B). Always wait for the beep, then give your command in a clear, natural voice. The HFL microphone is on the ceiling by the map lights.

If the HFL system does not recognize your voice command, you'll hear "Pardon? Press the TALK button or the HFL TALK button and say a command. For a list of commands, say Hands free help." If your command is not recognized a second time, you'll hear "Bluetooth HandsFreeLink™ main menu. Available calling options are call, dial, redial, and transfer. Available setup options are phone setup, phone book, and system setup. For more detailed help, say Hands free help. For general instructions on how to use Bluetooth Hands free Telephone system, say Tutorial." If your command is not recognized a third time, the HFL system sends you to its Help menu.

To hear a list of available options at any time, press the TALK button or the HFL TALK button, and say "help."

The HFL system may have problems recognizing some voices. To improve voice recognition

1. Close the windows and moonroof.
2. Set the fan speed to low (1 or 2) or off.
3. Adjust the airflow from the center vents down, so that it's not blowing against the microphone on the ceiling.
4. Speak in a clear and natural voice. If the system cannot recognize your command, try speaking louder, slower, or in a deeper tone.
5. If the background noise is too loud, you may need to speak louder.
6. If you speak with something in your mouth, or your voice is too high, the system may not interpret your command correctly.
7. Find out if the problem is with one person or with everyone who uses the system. If the system has a problem with only one person's voice, this is a system limitation.
8. Make sure you are sitting in the driver's seat when setting up the HFL system, initiating calls, or giving voice commands.
9. When speaking numbers, makes sure to speak clearly. If the system still has issues, try speaking slower.

Many issues result from the client not using the system properly. When the TALK button or the HFL TALK button is pressed, the client hears one audible tone. When the BACK button (C) or the HFL BACK button (D) is pressed, the client hears two audible tones. Make sure to press the BACK button or the HFL BACK button to exit out of the HFL main menu after completing a call and before giving any navigation commands.

The HFL system may experience a number recognition issue, such as when a client rattles off a set of numbers in a group unrecognized by the system. The HFL system understands phone numbers in specific blocks of 3, 4, 7, 10, and 11 numbers. For example, the system understands

1234567890

123-456-7890

The system may become confused if numbers are stated in other blocks like these

1234-567-890

12-34-56-78-90

12345-67890

123-4567-890

1-2-3-4-5-6-7-8-9-0

If the system does not understand your voice commands, see VOICE CONTROL TIPS AND IMPROVING VOICE RECOGNITION .

Scheme 1128

Navigation Through HFL Menus

To skip a voice prompt, press and release the TALK button (A) or the HFL TALK button (B) while the HFL system is speaking. The system beings listening for your next voice command.

To go back a step in a voice command sequence, press and release the BACK button (C) or the HFL BACK button (D), or press the TALK button or the HFL TALK button and say "Go back." If you do not say anything while the HFL system is listening for your voice command, it times out and stops voice recognition. The next time you press and release the TALK button or the HFL TALK button, the HFL system begins listening from the point it timed out.

If you have finished or want to stop a voice command sequence at anytime, press and release the BACK button or the HFL BACK button, or press and release the TALK button or the HFL TALK button, wait for the beep, and say "Cancel." The next time you press and release the PICK-UP button or the HFL TALK button, the HFL system begins from its main menu. To avoid keeping the audio system muted, press and release the BACK button or the HFL BACK button when you are finished.

Scheme 1129

Pairing a Cell Phone

You must pair an approved Bluetooth-compatible phone to the HFL system before you can make and receive calls. For a current list of approved phones and specific phone pairing instructions for each phone, see Checking Cell Phone Compatibility, go to www.acura.com/handsfreelink, or call the Acura's dedicated call center at 888-528-7876.

The following procedure works for most Acura approved phones. If you cannot pair your phone to the HFL system with this procedure, refer to your phone's operating manual, the vehicle's Owner's Manual, visit www.acura.com/handsfreelink, or call the Acura's dedicated call center at 888-528-7876.

Note. You cannot pair a phone while the vehicle is moving. Your phone must be in its Discovery mode. A maximum of six approved Bluetooth-compatible phones can be paired to the system.

With Navigation

The commands for pairing the phone can either be selected using the interface dial or by using the voice recognition system (TALK and BACK buttons).

Note. The navigation system can pair up to six approved phones. If you try to pair a seventh phone, a message appears that prompts you to delete one of your existing phones.

1. Turn the ignition switch to ACC (I), and make sure the phone you are pairing is on and in its discovery mode.
2. Press the INFO/PHONE button, and turn the interface dial to select Cellular Phone, then press ENTER.
3. Move the interface dial down to select Phone Setup.
4. Select Setup Bluetooth phone, and press Enter.
5. Select Pair Phone, then press enter.
6. When a four-digit pass key number appears on the screen, wait until prompted by the phone, then enter the pass key into your cell phone.
7. Once the phone is successfully paired, the screen displays "The pairing was successful."

Without Navigation

1. With your approved phone on and the ignition switch in ACC (I) or ON (II), press and release the HFL TALK button. After the beep, say "Phone setup." The HFL responds, "Phone setup options are pair, edit, delete, list, status, next phone, set pairing code."
2. Press and release the HFL TALK button. After the beep, say "Pair." The HFL responds, "The pairing process requires operation of your mobile phone. For safety, only perform this function while the vehicle is stopped. For proper system function a compatible Bluetooth phone is required. Please visit www.acura.com/handsfreelink for a list of approved phones and other system information. HandsFreeLink™ is waiting to pair with a Bluetooth phone. From your phone, search for Bluetooth devices, and select HandsFreeLink™. When prompted by your mobile phone enter the pairing code XXXX." The HFL system will give you a 4-digit pairing code.
3. When prompted by your mobile phone, enter the pairing code. Refer to your cell phone user guide for more information about searching for a Bluetooth device.
4. Once the phone is recognized by the HFL system, it responds, "HandsFreeLink™ has connected to a new phone. A name is needed to identify this phone. Press the talk button and say a name. For example, John's phone."
5. Press and release the HFL TALK button. After the beep, say the name you want to use. For example, say "Tom's phone." The HFL responds, "Tom's phone has been successfully paired."

Pairing Troubleshooting

Many pairing issues are resolved by altering the client's phone settings. Call the Acura's dedicated call center at 888-528-7876 after you have duplicated the problem.

If you cannot get an approved HFL phone to pair, call the Acura's dedicated call center at 888-528-7876, or go online to www.acura.com/handsfreelink.

Bluetooth feature settings must be turned on. Phone manufacturers set the default to disable Bluetooth features to conserve battery life. Cell phones may provide procedures to "Temporary Power On Bluetooth", or "Power On Bluetooth." Turn the Bluetooth feature on, pair the phone to the vehicle, and confirm the phone is linked. Do this by turning the phone off and back on. Make or receive a call to confirm the cell phone is successfully paired.

When the phone's Bluetooth feature is on, other handsfree accessories such as earpieces or headsets may automatically reconnect to the phone when you turn on the accessory or move it within range of the cell phone.

This results in the phone not connecting to the HFL system when the client enters the vehicle. You must unlink the hands-free accessory from the phone before the HFL system can reconnect.

Some phones have an Auto Answer setting that functions with a headset. This setting must be turned off or the HFL system cannot accept any incoming calls. When this setting is on, it blocks the HFL system from answering the call, and the call goes to voice mail. This can cause the client to think that the cell phone is not paired properly.

The HFL system can pair a maximum of six phones. Some vehicles will tell you that the HFL system has reached its maximum while other vehicles will not. To check how many phones are paired, press and release the TALK button or the HFL TALK button. After the beep, say "Phone setup list." The HFL system lists every assigned phone name paired with it, then finishes by saying "The entire list has been read. Returning to the main menu." Count number of phones listed. If there are six, you must delete one phone before adding a new one.

Pairing Checks

For more information about pairing, refer to the cell phone operating manual, or go to www.acura.com/handsfreelink.

1. Is the cell phone compatible with the HFL?
2. Is the Bluetooth feature turned on?
3. Is the client using the HFL buttons, not the navigation buttons (if applicable), when pairing?
4. Is the cell phone battery fully charged, and is there good signal strength when pairing?
5. Do a soft reset on the cell phone.
6. If the client is trying to pair a Blackberry® or Palm Treo™ device, make sure the client uses the shift key when entering the pass code. If the shift key is not pressed, the client may be entering letters. The HFL does not recognize letters.

Dropped Calls

Clients may perceive dropped calls as being an HFL system fault, but most dropped calls are resultant from cell phone and cell phone carrier issues. The HFL system does not directly handle the cell phone signal. It allows the cell phones to transmit the cell phone audio over the vehicle's audio system.

Many dropped calls issues can be resolved by changing the client's phone settings. For help on approved HFL settings, call the Acura's dedicated call center at 888-528-7876, or go online to www.acura.com/handsfreelink.

Always confirm with the client if the number of dropped calls is higher while using the HFL system as opposed to using the cell phone only. Clients often confuse problems with their phone or carrier as a problem with the HFL system. The HFL system cannot control or determine

1. Cellular connection quality
2. Signal strength
3. Cellular coverage
4. Ambient weather conditions that affect cellular signals

When a client complains about dropped calls, ask questions about when or where the calls are dropped, such as

1. Do you drive the same route on a regular basis?
2. Does the call drop in the same location?
3. Where do you keep your cell phone?
4. Have you compared the number of dropped calls using the HFL versus making calls from the handset?
5. Does your phone have an antenna that needs to be extended?

Many reasons for a dropped call are not related to the HFL system. Here are some causes for dropped calls

1. If the quantity of dropped calls is about the same when the client uses the HFL system versus the handset, the issue is likely due to the cellular phone or carrier.
2. If the phone is equipped with a retractable antenna, it needs to be extended to maximize signal strength.
3. If a client also notices that the calls tend to drop in the same areas, the HFL system may be operating normally, but something about the area diminishes cellular coverage to a point where the call drops.
4. Hills or mountains can block or interfere with cellular signals.
5. High-rise buildings, bridges, or other large structures may block or interfere with cellular signals.
6. Placing the cell phone in a purse, in a metal briefcase, under the seat, in the glove box, or in the trunk can all affect signal reception.
7. There are coverage gaps in the cellular service. When driving, a call is typically passed from one tower to another. If the client drives through an area where there is a coverage gap between towers, the call drops.
8. Electrical storms, heavy rain, or overcast conditions interfere with signal strength.
9. The cell phone battery's state of change can affect signal reception. A low battery may reduce the phone's ability to boost the antenna's power and function properly, especially in low signal strength areas. Some phone manufacturers trade off signal transmission and reception strength for battery life. As the battery weakens, the signal strength may also weaken. Some cell phones may operate more effectively than others in low signal strength areas, especially with a partially charged battery, and depending on whether or not the retractable antenna is fully extended (if applicable). On these models, make sure the antenna is always extended to maximize signal strength and extend battery life.

Phone will not Automatically Connect the HFL

Call the Acura's dedicated call center at 888-528-7876 after you have duplicated the problem.

If a client complains that their cell phone is not automatically connecting to the HFL system when they enter the vehicle, do this

1. Make sure the Bluetooth feature is turned on in the cell phone.
2. Make sure the cell phone is properly paired to the HFL system.
3. Do a soft reset to the cell phone.
4. Check if the phone has an Authorized Connection or Trusted option.
5. Check the battery and signal strength on the cell phone. Pairing a phone requires optimal signal strength and a nearly full battery.

Incoming Calls

Call the Acura's dedicated call center at 888-528-7876 after you have duplicated the problem.

If a client complains that they cannot receive incoming calls through the HFL system, see if the call is routing to the cell phone instead of the HFL system. An easy way to know if the call is routed to the cell phone is when the client says, "I can't hear the caller", but they can hear me.

Scheme 1130

1. Make sure the Bluetooth feature is turned on in the cell phone.
2. Make sure the cell phone is paired to the HFL system and linked.
3. Make sure the answer settings in the cell phone are set to multi-key or any-key answer. If the phone is set to flip-open to answer, recommend changing the setting to Any Key or leaving the phone flipped open when using the HFL system.
4. Make sure the Auto Answer feature is turned off in the cell phone.
5. Do a soft reset to the phone.
6. Make sure the battery is fully charged and there is adequate signal strength.
7. Ask the client if they have set specific ring tones or ringer IDs to specific contacts. If they have, recommend returning them to a standard ring tone for all calls.
8. Make sure the client is pressing the PICK-UP button (A) or the HFL TALK button (B) and not the HANG-UP button (C), the HFL BACK button (D), the TALK button (E), or the BACK button (F).

Outgoing Calls

Call the Acura's dedicated call center at 888-528-7876 after you have duplicated the problem.

If a client says that they cannot place a call using the HFL system, ask if the call was initiated through the HFL system or the cell phone itself.

If the call is placed by the HFL system

Scheme 1131

1. Make sure the Bluetooth feature is turned on in the cell phone.
2. Make sure the cell phone is paired to the HFL system and linked.
3. Make sure the client is pressing the TALK button (A) or the HFL TALK button (B) before each command and going through the calling process correctly.
4. Make sure the client is pressing the PICK-UP button (C) or the HFL TALK button and not the HANG-UP button (D), the HFL BACK button (E), the TALK button, or the BACK button (F).
5. Check if the cell phone has an Authorized Connections or Trusted option.
6. Do a soft reset to the cell phone.

If the call is placed by the cell phone

1. With navigation system; The call will remain on the handset until you transfer it over to the HFL system. To continue the call on the HFL system, you must use the Transfer command by selecting "Transfer." The client can now continue the call using the HFL system.
2. Without navigation system; By default calls made from the handset will transfer to the HFL system. If Auto-transfer is turned "off" calls will remain on handset. To continue or the HFL system, press the HFL TALK button and say "Transfer."

The commands for deleting a phone can either be selected using the interface dial or by using the voice recognition system (use the TALK and BACK buttons).

Note. The entire HFL system cannot be deleted at once. You must delete one phone at a time. If the system is locked and the pass code is lost or forgotten, see SYMPTOM TROUBLESHOOTING .

1. Turn the ignition switch to ACC (I).
2. Press the INFO/PHONE button, and turn the interface dial to select Cellular Phone, then press ENTER.
3. Move the interface dial down to select Phone Setup.
4. Select Edit User, and press ENTER.
5. Select Delete, then select the phone you want to delete from the list. Press ENTER to select the phone, then press ENTER again to confirm.
6. Repeat steps 4 - 5 for each phone you want to delete.

Note. This operation clears the HFL system of all passcode(s), any paired phones, and all names in the HFL phonebook. Clearing the HFL system is recommend before selling the vehicle. If the system is locked and the pass code is lost or forgotten, see the SYMPTOM TROUBLESHOOTING .

1. Press and release the HFL TALK button. After the beep, say "System setup clear" and the HFL system responds, "This process will clear all paired phones, clear all entries in the phonebook, clear the security passcode and restore all defaults in the system setup. Is this what you would like to do?."
2. Press and release the HFL TALK button. After the beep, say "Yes" and the HFL system responds, "Preparing to clear the system, which may take up to 2 minutes to complete."
3. Press and release the HFL TALK button. After the beep, say "Continue" to proceed, or say "Go back" or "Cancel."
4. If you said "Continue" the HFL responds, "Please wait until the system is cleared". After a short period of time (up to two minutes) the HFL responds, "The system has been cleared."

Self-Diagnostic Function

Note. This procedure should be used only if HDS is unavailable.

To run the self-diagnostic function, do the following

Scheme 1132

1. Turn the ignition switch to ON (II).
2. Press and hold the BACK button (A) or the HFL BACK button (B) for more than 5 seconds.
3. When the HandsFreeLink™ system enters the self-diagnostic function, the following will occur. If the system has not completed testing for DTCs, the HandsFreeLink™ system says "The hands free system test is in progress." If there is no DTC, the HandsFreeLink™ system says "The hands free system is OK." If there is any DTC, the HandsFreeLink™ system says "The hands free system needs to be serviced." NOTE: The self-diagnostic function can only be initiated while the HFL is in its idle state. The self-diagnostic function starts after you press and hold the BACK button or the HFL BACK button for 5 seconds, and ends if the HandsFreeLink™ control unit returns to its idle state.

Auto Answer

This cell phone setting forces incoming calls to automatically be answered by the handset. Disable this feature on the phone when using the HFL system, as it may interfere with the HFL system answering incoming calls. Set the phone setting to

1. Send Only
2. Any Key
3. Multi-Key answer

Answer Options

These cell phone settings allow you to select how you would like to answer an incoming call on the handset. The answer option in the phone can affect inbound calls on the HFL system.

Authorized Connection

This cell phone setting allows the phone to connect automatically with the HFL system without prompting the client for permission to connect. In some instances, it can affect the ability of the phone to properly route sound to the HFL system.

Bluetooth Power

This cell phone function enables or disables the Bluetooth application. When using a hands-free device such as HFL, the Bluetooth application needs to be enabled.

Discovery Mode

You need to have the cell phone in Discovery Mode to allow other devices with Bluetooth capabilities (such as the HFL system) to find the phone during the pairing process.

Scheme 1133

1. TALK button (A) or the HFL TALK button (B): This button activates the voice control system and is used for all voice commends. Press and release it, wait for a beep, and give a voice command.
2. BACK button (C) or the HFL BACK button (D): This button has the same function as the CANCEL button. When you press and release it, the current voice command is canceled and the display returns to the previous screen.
3. PICK-UP button (E) or the HFL TALK button: This button is used to answer incoming calls or to make outgoing calls. You can also go directly to the Cellular Phone screen by pressing this button.
4. HANG-UP button (F) or the HFL BACK button: This button is used to end a call.

Hard Reset (cellular phone)

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 cell phone owner's manual for more information)

Linking

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.

Pairing

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.

Soft Reset (cellular phone)

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. See the cell phone user manual for more information.

Software Version

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.

HandsFreeLink™ Control Unit

DTC TROUBLESHOOTING CHART

Symptom Troubleshooting Index

Note. Most HFL problems with pairing and HFL function are usually caused by the cell phone and its configuration. Call the HFL call center at 888-528-7876 for help before replacing any HFL components.

SYMPTOM TROUBLESHOOTING CHART

Scheme 1134

Scheme 1135

HandsFreeLink™ Control Unit 28P Connector

HANDSFREELINK CONTROL UNIT 28P CONNECTOR TERMINALS REFERENCE CHART

HANDSFREELINK CONTROL UNIT 28P CONNECTOR TERMINALS REFERENCE CHART

Scheme 1136

HANDSFREELINK CONTROL UNIT 28P CONNECTOR TERMINALS REFERENCE CHART

Scheme 1137

Scheme 1138

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Scheme 1140

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Scheme 1143

HFL System Troubleshooting

Note. Before doing this troubleshooting, refer to General Troubleshooting (see GENERAL TROUBLESHOOTING INFORMATION ) to make sure the phone is compatible and configured correctly. Make sure the phone is Acura approved and configured correctly. Online, go to www.acura.com/handsfreelink, or call the HFL call center at 888-528-7876. You must be able to duplicate the client's concern to successfully diagnose the problem. Always use the client's phone to successfully diagnose the problem.

1. Make sure the phone is approved by checking www.acura.com/handsfreelink, or call the HFL call center at 888-528-7876. Is the Bluetooth phone approved? YES --Go to step 2. NO --Explain to the client that the cell phone is not approved. Recommend they get a phone that does appear on the www.acura.com/handsfreelink website.
2. Check if the cell phone has any special requirements (software version, configuration, etc.). Call the HFL call center at 888-528-7876 for help. Is the correct software version loaded and is the phone properly configured? YES --Go to step 3. NO --Explain to your client that the cell phone software needs to be updated or the cell phone needs to be configured properly. If the HFL call center is able to help you configure the phone, explain the proper settings, otherwise direct your client to contact their cell phone manufacturer or carrier.
3. Check the features of the approved phone at www.acura.com/handsfreelink, or call the HFL call center at 888-528-7876. Are all the features approved? . YES -Go to step 4. NO -Check and see if the feature that is not approved is the same as the client complaint. If the complaint is about the feature that is not approved, the vehicle is OK. Explain to the client that the feature is not approved to work with the HFL. If the complaint is an approved feature, go to step 4.
4. Turn the ignition switch to ON (II).
5. Press and hold the HANG-UP button or the HFL BACK button for more than 5 seconds. Do you hear "The hands free system is OK"? YES -Go to step 6. NO -Check for HFL DTCs with the HDS (see «HOW TO CHECK FOR DTCS WITH THE HDS»(/acura/tsx/ii-2008-2014/remont/entertainment-systems/#handsfreelink-system-4-cyl) ).
6. Try to duplicate the problem or have the client demonstrate the problem. Can you duplicate the problem? YES -Go to step 7. NO -The system is OK at this time.
7. Pair the phone to a known-good vehicle (same model, year, and trim), and try duplicate the problem. Does the phone have the same problem on the known-good vehicle? YES -Call the HFL call center at 888-528-7876 to make sure the phone is configured correctly and has the correct software. If the phone is configured correctly, it is either a characteristic of the HFL system, or a characteristic of the particular approved phone being used. Explain to your client that this is a system characteristic. Another phone from the approved phone list may give more favorable results. NO -Substitute a known-good HandsFreeLink™ control unit (see «HANDSFREELINK CONTROL UNIT REMOVAL/INSTALLATION»(/acura/tsx/ii-2008-2014/remont/entertainment-systems/#handsfreelink-system-4-cyl__handsfreelinktm-control-unit-removalinstallation) ), and recheck. If the problem goes away, replace the original HandsFreeLink™ control unit (see «HANDSFREELINK CONTROL UNIT REMOVAL/INSTALLATION»(/acura/tsx/ii-2008-2014/remont/entertainment-systems/#handsfreelink-system-4-cyl__handsfreelinktm-control-unit-removalinstallation) ).

DTC B1775: Microphone input/output shorted to power or open (with navigation)

Note. If you are troubleshooting multiple DTCs, be sure to follow the instructions in B-CAN system diagnosis test mode A (see TROUBLESHOOTING - B-CAN SYSTEM DIAGNOSIS TEST MODE A ).

Scheme 1144

Scheme 1145

Scheme 1146

1. Connect the HDS to the DLC (see «HOW TO CHECK FOR DTCS WITH THE HDS»(/acura/tsx/ii-2008-2014/remont/entertainment-systems/#handsfreelink-system-4-cyl) ).
2. Clear the DTCs with the HDS.
3. Turn the ignition switch to LOCK (0) and then back to ON (II).
4. Check for DTCs with the HDS. Is DTC B1775 indicated? YES -Go to step 5. NO -Intermittent failure, the system is OK at this time.
5. Turn the ignition switch to LOCK (0).
6. Disconnect the HFL navigation microphone 7P connector.
7. Disconnect the HandsFreeLink™ control unit 28P connector.
8. Turn the ignition switch to ON (II).
9. Measure the voltage between HandsFreeLink™ control unit 28P connector terminal No. 13 and body ground. Is there voltage? YES -There is a short to power in the wire between the HandsFreeLink™ control unit and the HFL-navigation microphone. Replace the affected shielded harness. NO -Go to step 10.
10. Turn the ignition switch to LOCK (0).
11. Check for continuity between HandsFreeLink™ control unit 28P connector terminal No. 13 and HFL-navigation microphone 7P connector terminal No. 3. Is there continuity? YES -Go to step 12 NO -There is an open in the wire between the HandsFreeLink™ control unit and the HFL-navigation microphone. Replace the affected shielded harness.
12. Disconnect audio-navigation unit connector H (28P).
13. Turn the ignition switch to ON (II).
14. Measure the voltage between HandsFreeLink™ control unit 28P connector terminal No. 27 and body ground. Is there voltage? YES -There is a short to power in the wire between the HandsFreeLink™ control unit and the audio-navigation unit. Replace the affected shielded harness. • NO -Go to step 15.
15. Turn the ignition switch to LOCK (0).
16. Reconnect the HandsFreeLink™ control unit 28P connector and the HFL-navigation microphone 7P connector.
17. Tune the ignition switch to ON (II).
18. Do the HFL Self Diagnostic Function (see «SELF-DIAGNOSTIC FUNCTION»(/acura/tsx/ii-2008-2014/remont/entertainment-systems/#handsfreelink-system-4-cyl__self-diagnostic-function) ). Do you hear "The hands free system is OK"? YES -Substitute a known good audio-navigation unit (including the HDD) (see «AUDIO-NAVIGATION UNIT REMOVAL/INSTALLATION»(/acura/tsx/ii-2008-2014/remont/entertainment-systems/#navigation-system-4-cyl__audio-navigation-unit-removalinstallation) ), and recheck. If the symptom/indication goes away, replace the original audio-navigation unit (see «AUDIO-NAVIGATION UNIT REMOVAL/INSTALLATION»(/acura/tsx/ii-2008-2014/remont/entertainment-systems/#navigation-system-4-cyl__audio-navigation-unit-removalinstallation) ). • NO -Substitute a known good HFL-navigation microphone (see «HFL-NAVIGATION MICROPHONE REMOVAL/INSTALLATION»(/acura/tsx/ii-2008-2014/remont/entertainment-systems/#navigation-system-4-cyl__hfl-navigation-microphone-removalinstallation) ), and recheck. If the symptom/indication goes away, replace the original HFL-navigation microphone (see «HFL-NAVIGATION MICROPHONE REMOVAL/INSTALLATION»(/acura/tsx/ii-2008-2014/remont/entertainment-systems/#navigation-system-4-cyl__hfl-navigation-microphone-removalinstallation) ). If the symptom is still present, replace the HFL control unit (see «HANDSFREELINK CONTROL UNIT REMOVAL/INSTALLATION»(/acura/tsx/ii-2008-2014/remont/entertainment-systems/#handsfreelink-system-4-cyl__handsfreelinktm-control-unit-removalinstallation) ).

DTC B1775: Microphone input/output shorted to power or open (without navigation)

Note. If you are troubleshooting multiple DTCs, be sure to follow the instructions in B-CAN system diagnosis test mode A (see TROUBLESHOOTING - B-CAN SYSTEM DIAGNOSIS TEST MODE A ).

Scheme 1147

Scheme 1148

1. Connect the HDS to the DLC (see «HOW TO CHECK FOR DTCS WITH THE HDS»(/acura/tsx/ii-2008-2014/remont/entertainment-systems/#handsfreelink-system-4-cyl) ).
2. Clear the DTCs with the HDS.
3. Turn the ignition switch to LOCK (0) and then back to ON (II).
4. Check for DTCs with the HDS. Is DTC B1775 indicated? YES -Go to step 5. NO -Intermittent failure, the system is OK at this time.
5. Turn the ignition switch to LOCK (0).
6. Disconnect the HFL microphone 3P connector.
7. Disconnect the HandsFreeLink™ control unit 28P connector.
8. Turn the ignition switch to ON (II).
9. Measure the voltage between HandsFreeLink™ control unit 28P connector terminal No. 13 and body ground. Is there voltage? YES -There is a short to power in the wire between the HandsFreeLink™ control unit and the HFL microphone. Replace the affected shielded harness. NO -Go to step 10.
10. Turn the ignition switch to LOCK (0).
11. Check for continuity between HandsFreeLink™ control unit 28P connector terminal No. 13 and HFL microphone 3P connector terminal No. 1. Is there continuity? YES -Substitute a known-good HandsFreeLink™ control unit (see «HANDSFREELINK CONTROL UNIT REMOVAL/INSTALLATION»(/acura/tsx/ii-2008-2014/remont/entertainment-systems/#handsfreelink-system-4-cyl__handsfreelinktm-control-unit-removalinstallation) ), and recheck. If the symptom/indication goes away, replace the original HandsFreeLink™ control unit (see «HANDSFREELINK CONTROL UNIT REMOVAL/INSTALLATION»(/acura/tsx/ii-2008-2014/remont/entertainment-systems/#handsfreelink-system-4-cyl__handsfreelinktm-control-unit-removalinstallation) ). If the symptom/indication is still present, replace the HFL microphone (see «HFL MICROPHONE REMOVAL/INSTALLATION»(/acura/tsx/ii-2008-2014/remont/entertainment-systems/#handsfreelink-system-4-cyl) ). NO -There is an open in the wire between the HandsFreeLink™ control unit and the HFL microphone. Replace the affected shielded harness.

DTC B1776: Microphone input/output shorted to ground (with navigation)

Note. If you are troubleshooting multiple DTCs, be sure to follow the instructions in B-CAN system diagnosis test mode A (see TROUBLESHOOTING - B-CAN SYSTEM DIAGNOSIS TEST MODE A ).

Scheme 1149

Scheme 1150

Scheme 1151

Scheme 1152

1. Connect the HDS to the DLC (see «HOW TO CHECK FOR DTCS WITH THE HDS»(/acura/tsx/ii-2008-2014/remont/entertainment-systems/#handsfreelink-system-4-cyl) ).
2. Clear the DTCs with the HDS.
3. Turn the ignition switch to LOCK (0) and then back to ON (II).
4. Check for DTCs with the HDS. Is DTC B1776 indicated? YES -Go to step 5. NO -Intermittent failure, the system is OK at this time.
5. Turn the ignition switch to LOCK (0).
6. Disconnect the HFL-navigation microphone 7P connector.
7. Disconnect the HandsFreeLink™ control unit 28P connector.
8. Check for continuity between body ground and HandsFreeLink™ control unit 28P connector terminals No. 13 and No. 14 individually, then between terminals No. 12 and No. 13. Is there continuity? YES -There is a short in the wire(s) between the HandsFreeLink™ control unit and the HFL-navigation microphone. Replace the affected shielded harness. NO -Go to step 9.
9. Check for continuity between HandsFreeLink™ control unit 28P connector terminals No. 13 and No. 14 and HFL-navigation microphone 7P connector terminals No. 3 and No. 2 respectively. Is there continuity? YES -Go to step 10. NO -There is an open in the wire(s) between the HandsFreeLink™ control unit and the HFL-navigation microphone. Replace the affected shielded harness.
10. Disconnect audio-navigation unit connector H (28P).
11. Check for continuity between body ground and HandsFreeLink™ control unit 28P connector terminals No. 27 and No. 28 individually. Is there continuity? YES -There is a short in the wire(s) between the HandsFreeLink™ control unit and the audio-navigation unit. Replace the affected shielded harness. NO -Go to step 12.
12. Check for continuity between HandsFreeLink™ control unit 28P connector terminals No. 27 and No. 28 and audio-navigation unit connector H (28P) terminals No. 28 and No. 27 respectively. Is there continuity? YES -Substitute a known-good HandsFreeLink™ control unit (see «HANDSFREELINK CONTROL UNIT REMOVAL/INSTALLATION»(/acura/tsx/ii-2008-2014/remont/entertainment-systems/#handsfreelink-system-4-cyl__handsfreelinktm-control-unit-removalinstallation) ), and recheck. If the symptom/indication goes away, replace the original HandsFreeLink™ control unit (see «HANDSFREELINK CONTROL UNIT REMOVAL/INSTALLATION»(/acura/tsx/ii-2008-2014/remont/entertainment-systems/#handsfreelink-system-4-cyl__handsfreelinktm-control-unit-removalinstallation) ). If the symptom/indication is still present, replace the audio-navigation unit (see «AUDIO-NAVIGATION UNIT REMOVAL/INSTALLATION»(/acura/tsx/ii-2008-2014/remont/entertainment-systems/#navigation-system-4-cyl__audio-navigation-unit-removalinstallation) ). NO -There is an open in the wire(s) between the HandsFreeLink™ control unit and the audio-navigation unit. Replace the affected shielded harness.

DTC B1776: Microphone input/output shorted to ground (without navigation)

Note. If you are troubleshooting multiple DTCs, be sure to follow the instructions in B-CAN system diagnosis test mode A (see TROUBLESHOOTING - B-CAN SYSTEM DIAGNOSIS TEST MODE A ).

Scheme 1153

1. Connect the HDS to the DLC (see «HOW TO CHECK FOR DTCS WITH THE HDS»(/acura/tsx/ii-2008-2014/remont/entertainment-systems/#handsfreelink-system-4-cyl) ).
2. Clear the DTCs with the HDS.
3. Turn the ignition switch to LOCK (0) and then back to ON (II).
4. Check for DTCs with the HDS. Is DTC B1776 indicated? YES -Go to step 5. NO -Intermittent failure, the system is OK at this time.
5. Turn the ignition switch to LOCK (0).
6. Disconnect the HFL microphone 3P connector.
7. Disconnect the HandsFreeLink™ control unit 28P connector.
8. Check for continuity between body ground and HandsFreeLink™ control unit 28P connector terminals No. 13 and No. 14 individually, then between terminals No. 12 and No. 13. Is there continuity? YES -There is a short in the wire(s) between the HandsFreeLink™ control unit and the HFL microphone. Replace the affected shielded harness. NO -Go to step 9.
9. Disconnect audio-navigation unit connector H (28P).
10. Check for continuity between the HandsFreeLink™ control unit 28P connector terminal No. 27 and body ground. Is there continuity? YES -There is a short in the wire between the HandsFreeLink™ control unit and the audio-navigation unit. Replace the affected shielded harness. • NO -Go to step 11.
11. Reconnect the HandsFreeLink™ control unit 28P connector and the HFL-navigation microphone 7P connector.
12. Turn the ignition switch to ON (II).
13. Do the HFL Self Diagnostic Function (see «SELF-DIAGNOSTIC FUNCTION»(/acura/tsx/ii-2008-2014/remont/entertainment-systems/#handsfreelink-system-4-cyl__self-diagnostic-function) ). Do you hear "The hands free system is OK"? YES -Substitute a known good audio-navigation unit (including the HDD) (see «AUDIO-NAVIGATION UNIT REMOVAL/INSTALLATION»(/acura/tsx/ii-2008-2014/remont/entertainment-systems/#navigation-system-4-cyl__audio-navigation-unit-removalinstallation) ). and recheck. If the symptom/indication goes away, replace the original audio-navigation unit (see «AUDIO-NAVIGATION UNIT REMOVAL/INSTALLATION»(/acura/tsx/ii-2008-2014/remont/entertainment-systems/#navigation-system-4-cyl__audio-navigation-unit-removalinstallation) ). • NO -Substitute a known good HFL-navigation microphone (see «HFL-NAVIGATION MICROPHONE REMOVAL/INSTALLATION»(/acura/tsx/ii-2008-2014/remont/entertainment-systems/#navigation-system-4-cyl__hfl-navigation-microphone-removalinstallation) ), and recheck. If the symptom/indication goes away, replace the original HFL-navigation microphone (see «HFL-NAVIGATION MICROPHONE REMOVAL/INSTALLATION»(/acura/tsx/ii-2008-2014/remont/entertainment-systems/#navigation-system-4-cyl__hfl-navigation-microphone-removalinstallation) ). If the symptom/indication is still present, replace the HFL control unit (see «HANDSFREELINK CONTROL UNIT REMOVAL/INSTALLATION»(/acura/tsx/ii-2008-2014/remont/entertainment-systems/#handsfreelink-system-4-cyl__handsfreelinktm-control-unit-removalinstallation) ).

DTC B1779: HandsFreeLink™ steering wheel switch failure

Note. If you are troubleshooting multiple DTCs, be sure to follow the instructions in B-CAN system diagnosis test mode A (see TROUBLESHOOTING - B-CAN SYSTEM DIAGNOSIS TEST MODE A ).

Scheme 1154

Scheme 1155

Scheme 1156

Scheme 1157

1. Connect the HDS to the DLC (see «HOW TO CHECK FOR DTCS WITH THE HDS»(/acura/tsx/ii-2008-2014/remont/entertainment-systems/#handsfreelink-system-4-cyl) ).
2. Clear the DTCs with the HDS.
3. Turn the ignition switch to LOCK (0), then start the vehicle and turn the steering wheel back and forth several times.
4. Check for DTCs with the HDS. Is DTC B1779 indicated? YES -Go to step 5. NO -Intermittent failure, the system is OK at this time.
5. Turn the ignition switch to LOCK (0).
6. Do the HFL Switch Test (see «HFL SWITCH TEST»(/acura/tsx/ii-2008-2014/remont/entertainment-systems/#handsfreelink-system-4-cyl__hfl-switch-test) ). Is the switch OK? YES - Go to step 7. NO -Replace the HFL switch (see «HFL SWITCH REPLACEMENT»(/acura/tsx/ii-2008-2014/remont/entertainment-systems/#handsfreelink-system-4-cyl__hfl-switch-replacement) ).
7. Disconnect the HandsFreeLink™ control unit 28P connector.
8. Disconnect the HFL switch 7P connector.
9. Turn the ignition switch to ON (II).
10. Measure the voltage between HFL switch 7P connector terminal No. 4 and body ground. Is there voltage? YES -Repair a short to power on the BLU wire. NO -Go to step 11.
11. Turn the ignition switch to LOCK (0).
12. Check for continuity between HandsFreeLink™ control unit 28P connector terminal No. 2 and HFL switch 7P connector terminal No. 4. Is there continuity? YES -Go to step 13. NO -Repair an open in the wire between the switch, the cable reel, and the HandsFreeLink™ control unit.
13. Turn the ignition switch to ON (II).
14. Measure the voltage between HandsFreeLink™ control unit 28P connector terminal No. 2 and body ground. Is there voltage? YES -Repair a short to power on the PUR wire. NO -Go to step 15.
15. Turn the ignition switch to LOCK (0).
16. Check for continuity between HFL switch 7P connector terminal No. 5 and body ground. Is there continuity? YES -Replace the HandsFreeLink™ control unit (see «HANDSFREELINK CONTROL UNIT REMOVAL/INSTALLATION»(/acura/tsx/ii-2008-2014/remont/entertainment-systems/#handsfreelink-system-4-cyl__handsfreelinktm-control-unit-removalinstallation) ). NO -Repair an open in the wire between the switch, the cable reel, and the audio unit.

DTC B1780: HandsFreeLink™ steering wheel Switch line short

Note. If you are troubleshooting multiple DTCs, be sure to follow the instructions in B-CAN system diagnosis test mode A (see TROUBLESHOOTING - B-CAN SYSTEM DIAGNOSIS TEST MODE A ).

Scheme 1158

1. Connect the HDS to the DLC (see «HOW TO CHECK FOR DTCS WITH THE HDS»(/acura/tsx/ii-2008-2014/remont/entertainment-systems/#handsfreelink-system-4-cyl) ).
2. Clear the DTCs with the HDS.
3. Turn the ignition switch to LOCK (0), then start the vehicle and turn the steering wheel back and forth several times.
4. Check for DTCs with the HDS. Is DTC B1780 indicated? YES -Go to step 5. NO -Intermittent failure, the system is OK at this time.
5. Turn the ignition switch to LOCK (0).
6. Do the HFL Switch Test (see «HFL SWITCH TEST»(/acura/tsx/ii-2008-2014/remont/entertainment-systems/#handsfreelink-system-4-cyl__hfl-switch-test) ). Is the switch OK? YES -Go to step 7. NO -Replace the HFL switch (see «HFL SWITCH REPLACEMENT»(/acura/tsx/ii-2008-2014/remont/entertainment-systems/#handsfreelink-system-4-cyl__hfl-switch-replacement) ).
7. Disconnect the HandsFreeLink™ control unit 28P connector.
8. Disconnect the HFL switch 7P connector.
9. Check for continuity between HandsFreeLink™ control unit 28P connector terminal No. 2 and body ground. Is there continuity? YES -Repair a short in the wire. NO -Replace the HandsFreeLink™ control unit (see «HANDSFREELINK CONTROL UNIT REMOVAL/INSTALLATION»(/acura/tsx/ii-2008-2014/remont/entertainment-systems/#handsfreelink-system-4-cyl__handsfreelinktm-control-unit-removalinstallation) ).

DTC B1792: HandsFreeLink™ control module error

1. Connect the HDS to the DLC (see «HOW TO CHECK FOR DTCS WITH THE HDS»(/acura/tsx/ii-2008-2014/remont/entertainment-systems/#handsfreelink-system-4-cyl) ).
2. Clear the DTCs with the HDS.
3. Turn the ignition switch to LOCK (0) and then back to ON (II).
4. Check for DTCs with the HDS. Is DTC B1792 indicated? YES -Replace the HandsFreeLink™ control unit (see «HANDSFREELINK CONTROL UNIT REMOVAL/INSTALLATION»(/acura/tsx/ii-2008-2014/remont/entertainment-systems/#handsfreelink-system-4-cyl__handsfreelinktm-control-unit-removalinstallation) ). NO -Intermittent failure, the system is OK at this time.

The HFL digits do not go away from the audio-HVAC display or audio-navigation switch panel display after pressing the HFL BACK button

1. Connect the HDS to the DLC (see «HOW TO CHECK FOR DTCS WITH THE HDS»(/acura/tsx/ii-2008-2014/remont/entertainment-systems/#handsfreelink-system-4-cyl) ).
2. Clear the DTCs with the HDS.
3. Turn the ignition switch to LOCK (0) and then back to ON (II).
4. Check for DTCs with the HDS. Are there any DTCs indicated? YES -Troubleshoot the indicated DTCs. NO -Go to step 5.
5. Turn the ignition to LOCK (0).
6. Substitute a known-good HandsFreeLink™ control unit (see «CONTROL UNIT INPUT TEST»(/acura/tsx/ii-2008-2014/remont/entertainment-systems/#handsfreelink-system-4-cyl) ).
7. Turn the ignition switch to ON (II), and check the audio-navigation switch panel display (with navigation) or the audio-HVAC display unit (without navigation). Are the messages cleared? YES -Replace the original HandsFreeLink™ control unit (see «HANDSFREELINK CONTROL UNIT REMOVAL/INSTALLATION»(/acura/tsx/ii-2008-2014/remont/entertainment-systems/#handsfreelink-system-4-cyl__handsfreelinktm-control-unit-removalinstallation) ). NO -Replace the audio-navigation switch panel (see «AUDIO-NAVIGATION SWITCH PANEL REMOVAL/INSTALLATION»(/acura/tsx/ii-2008-2014/remont/entertainment-systems/#audio-system-4-cyl) ) or the audio-HVAC display unit (see «AUDIO-HVAC DISPLAY UNIT REMOVAL/INSTALLATION»(/acura/tsx/ii-2008-2014/remont/entertainment-systems/#audio-system-4-cyl) ).

The HFL System Does Not Recognize All Voice Commands

1. Connect the HDS to the DLC (see «HOW TO CHECK FOR DTCS WITH THE HDS»(/acura/tsx/ii-2008-2014/remont/entertainment-systems/#handsfreelink-system-4-cyl) ).
2. Turn the ignition switch to ON (II).
3. Clear the DTCs with the HDS.
4. Turn the ignition switch to LOCK (0) and then back to ON (II).
5. Check for DTCs with the HDS. Are there any DTCs indicated? YES -Troubleshoot the indicated DTCs. NO -Go to step 5.
6. Check if the problem is duplicated. Can the client's problem be duplicated? YES - With navigation: Go to step 6. Without navigation: Go to step 8 . NO -The system is OK at this time. Ask the client to demonstrate the problem.
7. Check if the navigation system can recognize voice prompts. Can the voice prompts be recognized? YES -Go to step 7. NO -Refer to the navigation system troubleshooting.
8. Pair the client's phone to a known-good vehicle, and try to duplicate the problem. Can you duplicate the problem? YES -Call the HFL call center 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 this is a system characteristic and cannot be improved at this time. NO - With navigation: Substitute a known-good HFL-navigation microphone (see «HFL-NAVIGATION MICROPHONE REMOVAL/INSTALLATION»(/acura/tsx/ii-2008-2014/remont/entertainment-systems/#navigation-system-4-cyl__hfl-navigation-microphone-removalinstallation) ). If the symptom/indication goes away, replace the original HFL-navigation microphone (see «HFL-NAVIGATION MICROPHONE REMOVAL/INSTALLATION»(/acura/tsx/ii-2008-2014/remont/entertainment-systems/#navigation-system-4-cyl__hfl-navigation-microphone-removalinstallation) ). If the symptom/indication is still present, replace the HandsFreeLink™ control unit (see «HANDSFREELINK CONTROL UNIT REMOVAL/INSTALLATION»(/acura/tsx/ii-2008-2014/remont/entertainment-systems/#handsfreelink-system-4-cyl__handsfreelinktm-control-unit-removalinstallation) ). Without navigation: Substitute a known-good HFL microphone (see «HFL MICROPHONE REMOVAL/INSTALLATION»(/acura/tsx/ii-2008-2014/remont/entertainment-systems/#handsfreelink-system-4-cyl) ), and recheck. If the symptom/indication goes away, replace the original HFL microphone (see «HFL MICROPHONE REMOVAL/INSTALLATION»(/acura/tsx/ii-2008-2014/remont/entertainment-systems/#handsfreelink-system-4-cyl) ). If the symptom/indication is still present, replace the HandsFreeLink™ control unit (see «HANDSFREELINK CONTROL UNIT REMOVAL/INSTALLATION»(/acura/tsx/ii-2008-2014/remont/entertainment-systems/#handsfreelink-system-4-cyl__handsfreelinktm-control-unit-removalinstallation) ).

The HFL system is locked and the pass code has been lost or forgotten

1. Connect the HDS to the DLC (see «HOW TO CHECK FOR DTCS WITH THE HDS»(/acura/tsx/ii-2008-2014/remont/entertainment-systems/#handsfreelink-system-4-cyl) ).
2. Turn the ignition switch to ON (II).
3. From the Body Electrical menu, select HandsFreeLink™.
4. Select Miscellaneous Tests, then select Pass code reset.
5. Follow the HDS prompts to reset the pass code.

The HFL messages and voice prompts cannot be heard or are weak (with navigation)

Note. Check the vehicle battery condition first (see BATTERY TEST ).

Scheme 1159

Scheme 1160

Scheme 1161

1. Turn the ignition switch to ON (II).
2. Turn on the audio system, and check for sound in each mode (AM/FM and CD/DVD). Is the sound normal? YES -Go to step 3. NO -Go to Sound Quality Diagnosis (see «SOUND QUALITY DIAGNOSIS»(/acura/tsx/ii-2008-2014/remont/entertainment-systems/#audio-system-4-cyl__sound-quality-diagnosis) ) or No sound is heard from the speaker(s) (display is normal) troubleshooting (see «NO SOUND IS HEARD FROM THE SPEAKER(S) (DISPLAY IS NORMAL) (WITH ELS AUDIO)»(/acura/tsx/ii-2008-2014/remont/entertainment-systems/#audio-system-4-cyl__no-sound-is-heard-from-the) ).
3. Do the HFL Self Diagnostic Function (see «SELF-DIAGNOSTIC FUNCTION»(/acura/tsx/ii-2008-2014/remont/entertainment-systems/#handsfreelink-system-4-cyl__self-diagnostic-function) ). Do you hear "The hands free system is OK"? YES -Intermittent failure, the system is OK at this time. • NO -Go to step 4.
4. Turn the ignition switch to LOCK (0).
5. Connect the HDS to the DLC (see «HOW TO CHECK FOR DTCs WITH THE HDS»(/acura/tsx/ii-2008-2014/remont/entertainment-systems/#handsfreelink-system-4-cyl) ).
6. Turn the ignition switch to ON (II).
7. Check for DTCs. Are there any DTCs indicated? YES -Troubleshoot the indicated DTCs. NO -Go to step 8.
8. Turn the ignition switch to LOCK (0).
9. Do the HFL Switch Test (see «HFL SWITCH TEST»(/acura/tsx/ii-2008-2014/remont/entertainment-systems/#handsfreelink-system-4-cyl__hfl-switch-test) ). Is the switch OK? YES -Go to step 10. NO -Replace the HFL-navigation voice control switch (see «HANDSFREELINK CONTROL UNIT REMOVAL/INSTALLATION»(/acura/tsx/ii-2008-2014/remont/entertainment-systems/#handsfreelink-system-4-cyl__handsfreelinktm-control-unit-removalinstallation) ).
10. Disconnect audio-navigation unit connector B (24P) and the HandsFreeLink™ control unit 28P connector.
11. Check for continuity between HandsFreeLink™ control unit 28P connector terminals No. 11 and No. 25 and audio-navigation unit connector B (24P) terminals No. 5 and No. 16 respectively. Is there continuity? YES -Go to step 12. NO -There is an open in the wire(s) between the HandsFreeLink™ control unit and the audio-navigation unit. Replace the affected shielded harness.
12. Check for continuity between body ground and audio-navigation unit connector B (24P) terminals No. 5 and No. 16 individually. Is there continuity? YES -There is a short to body ground in the wire(s) between the HandsFreeLink™ control unit and the audio-navigation unit. Replace the affected shielded harness. • NO -Go to step 13.
13. Check for continuity between the terminals of audio-navigation unit connector B (24P) according to the table. CONNECTOR TERMINALS REFERENCE CHART From terminal To terminals B5(RED) B16(GRN), B17(GRY) B16(GRN) B17(GRY)

Is there continuity?

YES -There is a short in the wires between the HandsFreeLink™ control unit and the audio-navigation unit. Replace the affected shielded harness.

NO -Substitute a known-good HandsFreeLink™ control unit (see HANDSFREELINK CONTROL UNIT REMOVAL/INSTALLATION ), and recheck. If the symptom/indication goes away, replace the original HandsFreeLink™ control unit (see HANDSFREELINK CONTROL UNIT REMOVAL/INSTALLATION ). If the symptom/indication is still present, replace the audio-navigation unit (see AUDIO-NAVIGATION UNIT REMOVAL/INSTALLATION ).

The HFL Messages And Voice Prompts Cannot Be Heard Or Are Weak (Without Navigation)

Note. Check the vehicle battery condition first (see BATTERY TEST ).

Scheme 1162

Scheme 1163

Scheme 1164

Scheme 1165

Scheme 1166

1. Turn the ignition switch to ON (II).
2. Turn on the audio unit, and check for sound in each mode (AM/FM and CD). Is the sound normal? YES -Go to step 3. NO -Go to Sound Quality Diagnosis (see «SOUND QUALITY DIAGNOSIS»(/acura/tsx/ii-2008-2014/remont/entertainment-systems/#audio-system-4-cyl__sound-quality-diagnosis) ) or No sound is heard from the speaker(s) (display is normal) troubleshooting (see «NO SOUND IS HEARD FROM THE SPEAKER(S) (DISPLAY IS NORMAL) (WITH PREMIUM AUDIO)»(/acura/tsx/ii-2008-2014/remont/entertainment-systems/#audio-system-4-cyl__no-sound-is-heard-from-the) ).
3. Connect the HDS to the DLC (see «HOW TO CHECK FOR DTCS WITH THE HDS»(/acura/tsx/ii-2008-2014/remont/entertainment-systems/#handsfreelink-system-4-cyl) ).
4. Clear the DTCs with the HDS.
5. Turn the ignition switch to LOCK (0) and then back to ON (II).
6. Check for DTCs. Are there any DTCs indicated? YES -Troubleshoot the indicated DTCs. NO -Go to step 7.
7. Press the TALK button. Are HFL messages played? YES -Go to step 8. NO -Go to step 10 .
8. Turn on the audio system.
9. Press the HFL TALK button. Does the audio system mute when HFL messages are being played? YES -Intermittent failure, the system is OK at this time. NO -Go to step 15 .
10. Turn the ignition switch to LOCK (0).
11. Disconnect audio unit connector B (20P) and the HandsFreeLink™ control unit 28P connector.
12. Check for continuity between HandsFreeLink™ control unit 28P connector terminals No. 11 and No. 25 and audio unit connector B (20P) terminals No. 19 and No. 9 respectively. Is there continuity? YES -Go to step 13. NO -There is an open in the wire(s) between the HandsFreeLink™ control unit and the audio unit. Replace the affected shielded harness.
13. Check for continuity between body ground and audio unit connector B (20P) terminals No. 9 and No. 19 individually. Is there continuity? YES -There is a short to body ground in the wire(s) between the HandsFreeLink™ control unit and the audio unit. Replace the affected shielded harness. NO -Go to step 14.
14. Check for continuity between the terminals of audio unit connector B (20P) according to the table. CONNECTOR TERMINALS REFERENCE CHART From terminal To terminals B19(GRN) B9(RED), B10(GRY) B9(RED) B10(GRY) Is there continuity? YES -There is a short in the wires between the HandsFreeLink™ control unit and the audio unit. Replace the affected shielded harness. NO -Substitute a known-good HandsFreeLink™ control unit (see «HANDSFREELINK CONTROL UNIT REMOVAL/INSTALLATION»(/acura/tsx/ii-2008-2014/remont/entertainment-systems/#handsfreelink-system-4-cyl__handsfreelinktm-control-unit-removalinstallation) ), and recheck. If the symptom/indication goes away, replace the original HandsFreeLink™ control unit (see «HANDSFREELINK CONTROL UNIT REMOVAL/INSTALLATION»(/acura/tsx/ii-2008-2014/remont/entertainment-systems/#handsfreelink-system-4-cyl__handsfreelinktm-control-unit-removalinstallation) ). If the symptom/indication is still present, replace the audio unit (see «AUDIO UNIT REMOVAL/INSTALLATION»(/acura/tsx/ii-2008-2014/remont/entertainment-systems/#audio-system-4-cyl) ).
15. Turn the ignition switch to LOCK (0).
16. Disconnect the HandsFreeLink™ control unit 28P connector and audio unit connector B (20P).
17. Check for continuity between HandsFreeLink™ control unit 28P connector terminal No. 3 and audio unit connector B (20P) terminal No. 20. Is there continuity? YES -Go to step 18. NO -Repair an open in the wire between the HandsFreeLink™ control unit and the audio unit.
18. Check for continuity between body ground and HandsFreeLink™ control unit 28P connector terminal No. 3.

Is there continuity?

YES -Repair a short to body ground in the wire between the HandsFreeLink™ control unit and the audio unit.

NO -Substitute a known-good HandsFreeLink™ control unit (see HANDSFREELINK CONTROL UNIT REMOVAL/INSTALLATION ), and recheck. If the symptom/indication goes away, replace the original HandsFreeLink™ control unit (see HANDSFREELINK CONTROL UNIT REMOVAL/INSTALLATION ). If the symptom/indication is still present, replace the audio unit (see AUDIO UNIT REMOVAL/INSTALLATION ).

No sound when Bluetooth audio is used (with navigation)

Note. Check the vehicle battery condition first (see BATTERY TEST ). Check the connectors for poor connections or loose terminals. Set the fader and balance positions to the center. Check if the cell phone with Bluetooth audio functions normally. Make sure the cell phone is properly paired. Make sure the client's phone is compatible with the Acura HFL system. See www.acura.com/handsfreelink for more information.

Scheme 1167

Scheme 1168

Scheme 1169

Scheme 1170

1. Turn the ignition switch to ON (II).
2. Turn on the audio system, and check for sound in each mode (AM/FM and CD/DVD). Is the sound normal? YES -Go to step 3. NO -Go to Sound Quality Diagnosis (see «SOUND QUALITY DIAGNOSIS»(/acura/tsx/ii-2008-2014/remont/entertainment-systems/#audio-system-4-cyl__sound-quality-diagnosis) ) or No sound is heard from the speaker(s) (display is normal) troubleshooting (see «NO SOUND IS HEARD FROM THE SPEAKER(S) (DISPLAY IS NORMAL) (WITH ELS AUDIO)»(/acura/tsx/ii-2008-2014/remont/entertainment-systems/#audio-system-4-cyl__no-sound-is-heard-from-the) ).
3. Press the AUX button, and check if it changes to Bluetooth audio source. Does the audio system change to Bluetooth audio source? YES -Go to step 4. NO -Substitute a known-good audio-navigation unit (including the HDD) (see «AUDIO-NAVIGATION UNIT REMOVAL/INSTALLATION»(/acura/tsx/ii-2008-2014/remont/entertainment-systems/#navigation-system-4-cyl__audio-navigation-unit-removalinstallation) ), and recheck. If the symptom/indication goes away, replace the original audio-navigation unit (see «AUDIO-NAVIGATION UNIT REMOVAL/INSTALLATION»(/acura/tsx/ii-2008-2014/remont/entertainment-systems/#navigation-system-4-cyl__audio-navigation-unit-removalinstallation) ).
4. Check if it is connected when switching to Bluetooth audio screen by pressing the AUX button. Is NO CONNECTION displayed? YES -Go to Bluetooth cell phone cannot be paired troubleshooting (see «BLUETOOTH CELL PHONE CANNOT BE PAIRED»(/acura/tsx/ii-2008-2014/remont/entertainment-systems/#handsfreelink-system-4-cyl__bluetooth-cell-phone-cannot-be-paired) ). NO -Go to step 5.
5. Check if the Bluetooth audio device can be played. Does the Bluetooth audio play? YES -Intermittent failure, the system is OK at this time. NO -Go to step 6.
6. Connect the HDS to the DLC (see «HOW TO CHECK FOR DTCS WITH THE HDS»(/acura/tsx/ii-2008-2014/remont/entertainment-systems/#handsfreelink-system-4-cyl) ).
7. Clear the DTCs with the HDS.
8. Turn the ignition switch to LOCK (0) and then back to ON (II).
9. Check for DTCs. Is there any DTCs indicated? YES -Troubleshoot the indicated DTCs. NO -Go to step 10.
10. Turn the ignition switch to LOCK (0).
11. Disconnect audio-navigation unit connector C (14P) and the HandsFreeLink™ control unit 28P connector.
12. Check for continuity between audio-navigation unit connector C (14P) and the HandsFreeLink™ control unit 28P connector according to the table. CONNECTOR TERMINALS REFERENCE CHART Audio-navigation unit connector HandsFreeLink™ control unit connector Wire color C5 9 GRN C6 10 BLK C13 23 WHT C14 24 RED Is there continuity? YES -Go to step 13. NO -There is an open in the wire(s) between the audio-navigation unit and the HandsFreeLink™ control unit. Replace the affected shielded harness.
13. Disconnect AcuraLink® control unit (XM receiver) connector A (32P) (with AcuraLink®) or XM receiver connector A (14P) (without AcuraLink®).
14. Check for continuity between body ground and the HandsFreeLink™ control unit 28P connector according to the table. CONNECTOR TERMINALS REFERENCE CHART HandsFreeLink™ control unit connector Wire color 9 GRN 10 BLK 23 WHT 24 RED Is there continuity? YES -There is a short to body ground in the wire(s) between the audio-navigation unit and the HandsFreeLink™ control unit. Replace the affected shielded harness. NO -Go to step 15.
15. Check for continuity between the terminals of the HandsFreeLink™ control unit 28P connector according to the table. CONNECTOR TERMINALS REFERENCE CHART From terminal To terminals 22 (GRY) 9 (GRN), 10 (BLK), 23 (WHT), 24 (RED) Is there continuity between any of the terminals? YES -There is a short in the wires between the audio-navigation unit and the HandsFreeLink™ control unit. Replace the affected shielded harness. NO -Go to step 16.
16. Reconnect audio-navigation unit connector C (14P) and the HandsFreeLink™ control unit 28P connector.
17. Turn the ignition switch to ON (II).
18. Check if the Bluetooth audio device can be played. Does the Bluetooth audio play? YES -There is an internal malfunction where the connector for either the AcuraLink® control unit (XM receiver) (with AcuraLink®) or the XM receiver (without AcuraLink®) is connected. NO -Go to step 19.
19. Turn the ignition switch to LOCK (0).
20. Disconnect the HandsFreeLink™ control unit 28P connector.
21. Reconnect AcuraLink® control unit (XM receiver) connector A (32P) (with AcuraLink®) or XM receiver connector A (14P) (without AcuraLink®).
22. Turn the ignition switch to ON (II).
23. Check for XM radio sound. Is the sound normal? YES -Substitute a known-good HandsFreeLink™ control unit (see «HANDSFREELINK CONTROL UNIT REMOVAL/INSTALLATION»(/acura/tsx/ii-2008-2014/remont/entertainment-systems/#handsfreelink-system-4-cyl__handsfreelinktm-control-unit-removalinstallation) ), and recheck. If the symptom/indication goes away, replace the original HandsFreeLink™ control unit (see «HANDSFREELINK CONTROL UNIT REMOVAL/INSTALLATION»(/acura/tsx/ii-2008-2014/remont/entertainment-systems/#handsfreelink-system-4-cyl__handsfreelinktm-control-unit-removalinstallation) ). NO -Substitute a known-good audio-navigation unit (including the HDD) (see «AUDIO-NAVIGATION UNIT REMOVAL/INSTALLATION»(/acura/tsx/ii-2008-2014/remont/entertainment-systems/#navigation-system-4-cyl__audio-navigation-unit-removalinstallation) ), and recheck. If the symptom/indication goes away, replace the original audio-navigation unit (see «AUDIO-NAVIGATION UNIT REMOVAL/INSTALLATION»(/acura/tsx/ii-2008-2014/remont/entertainment-systems/#navigation-system-4-cyl__audio-navigation-unit-removalinstallation) ).

No sound when Bluetooth audio is used (without navigation)

Note. Check the vehicle battery condition first (see BATTERY TEST ). Check the connectors for poor connections or loose terminals. Set the fader and balance positions to the center. Check if the cell phone with Bluetooth audio functions normally. Make sure the cell phone is properly paired. Make sure the client's phone is compatible with the Acura HFL system. See www.acura.com/handsfreelink for more information.

Scheme 1171

Scheme 1172

Scheme 1173

Scheme 1174

1. Turn the ignition switch to ON (II).
2. Turn on the audio unit, and check for sound in each mode (AM/FM and CD). Is the sound normal? YES -Go to step 3. NO -Go to Sound Quality Diagnosis (see «SOUND QUALITY DIAGNOSIS»(/acura/tsx/ii-2008-2014/remont/entertainment-systems/#audio-system-4-cyl__sound-quality-diagnosis) ) or No sound is heard from the speaker(s) (display is normal) troubleshooting (see «NO SOUND IS HEARD FROM THE SPEAKER(S) (DISPLAY IS NORMAL) (WITH PREMIUM AUDIO)»(/acura/tsx/ii-2008-2014/remont/entertainment-systems/#audio-system-4-cyl__no-sound-is-heard-from-the) ).
3. Press the AUX button, and check if it changes to Bluetooth audio source. Does the audio system change to Bluetooth audio source? YES -Go to step 4. NO -Substitute a known-good audio unit (see «AUDIO UNIT REMOVAL/INSTALLATION»(/acura/tsx/ii-2008-2014/remont/entertainment-systems/#audio-system-4-cyl) ), and recheck. If the symptom/indication goes away, replace the original audio unit (see «AUDIO UNIT REMOVAL/INSTALLATION»(/acura/tsx/ii-2008-2014/remont/entertainment-systems/#audio-system-4-cyl) ).
4. Check if it is connected when switching to Bluetooth audio screen by pressing the AUX button. Is NO CONNECTION displayed? YES -Go to Bluetooth cell phone cannot be paired troubleshooting (see «BLUETOOTH CELL PHONE CANNOT BE PAIRED»(/acura/tsx/ii-2008-2014/remont/entertainment-systems/#handsfreelink-system-4-cyl__bluetooth-cell-phone-cannot-be-paired) ). NO -Go to step 5.
5. Check if the Bluetooth audio device can be played. Does the Bluetooth audio play? YES -Intermittent failure, the system is OK at this time. NO -Go to step 6.
6. Connect the HDS to the DLC (see «HOW TO CHECK FOR DTCS WITH THE HDS»(/acura/tsx/ii-2008-2014/remont/entertainment-systems/#handsfreelink-system-4-cyl) ).
7. Clear the DTCs with the HDS.
8. Turn the ignition switch to LOCK (0) and then back to ON (II).
9. Check for DTCs. Is there any DTCs indicated? YES -Troubleshoot the indicated DTCs. NO -Go to step 10.
10. Turn the ignition switch to LOCK (0).
11. Disconnect audio unit connector E (14P) and the HandsFreeLink™ control unit 28P connector.
12. Check for continuity between audio unit connector E (14P) and the HandsFreeLink™ control unit 28P connector according to the table. CONNECTOR TERMINALS REFERENCE CHART Audio unit connector HandsFreeLink™ control unit connector Wire color E5 9 GRN E6 10 BLK E13 23 WHT E14 24 RED Is there continuity? YES -Go to step 13. NO -There is an open in the wire(s) between the audio unit and the HandsFreeLink™ control unit. Replace the affected shielded harness.
13. Disconnect XM receiver connector A (14P) and USB adapter control unit connector A (14P).
14. Check for continuity between body ground and the HandsFreeLink™ control unit 28P connector according to the table. CONNECTOR TERMINALS REFERENCE CHART HandsFreeLink™ control unit connector Wire color 9 GRN 10 BLK 23 WHT 24 RED Is there continuity? YES -There is a short to body ground in the wire(s) between the audio unit and the HandsFreeLink™ control unit. Replace the affected shielded harness. NO -Go to step 15.
15. Check for continuity between the terminals of the HandsFreeLink™ control unit 28P connector according to the table. CONNECTOR TERMINALS REFERENCE CHART From terminal To terminals 22 (GRY) 9 (GRN), 10 (BLK), 23 (WHT), 24 (RED) Is there continuity between any of the terminals? YES -There is a short in the wires between the audio unit and the HandsFreeLink™ control unit. Replace the affected shielded harness. NO -Go to step 16.
16. Reconnect the audio unit connector E (14P) and the HandsFreeLink™ control unit 28P connector.
17. Turn the ignition switch to ON (II).
18. Check if the Bluetooth audio device can be played. Does the Bluetooth audio play? YES -There is an internal malfunction in the connector for either the XM receiver or USB adapter control unit. NO -Go to step 19.
19. Turn the ignition switch to LOCK (0).
20. Disconnect the HandsFreeLink™ control unit 28P connector.
21. Reconnect XM receiver connector A (14P) and USB adapter control unit connector A (14P).
22. Turn the ignition switch to ON (II).
23. Check for sound in each mode (XM and USB). Is the sound normal? YES -Substitute a known-good HandsFreeLink™ control unit (see «HANDSFREELINK CONTROL UNIT REMOVAL/INSTALLATION»(/acura/tsx/ii-2008-2014/remont/entertainment-systems/#handsfreelink-system-4-cyl__handsfreelinktm-control-unit-removalinstallation) ), and recheck. If the symptom/indication goes away, replace the original HandsFreeLink™ control unit (see «HANDSFREELINK CONTROL UNIT REMOVAL/INSTALLATION»(/acura/tsx/ii-2008-2014/remont/entertainment-systems/#handsfreelink-system-4-cyl__handsfreelinktm-control-unit-removalinstallation) ). NO -Substitute a known-good audio unit (see «AUDIO UNIT REMOVAL/INSTALLATION»(/acura/tsx/ii-2008-2014/remont/entertainment-systems/#audio-system-4-cyl) ), and recheck. If the symptom/indication goes away, replace the original audio unit (see «AUDIO UNIT REMOVAL/INSTALLATION»(/acura/tsx/ii-2008-2014/remont/entertainment-systems/#audio-system-4-cyl) ).

No Sound When Bluetooth Audio Is Used (With Navigation)

Note. Check the vehicle battery condition first (see BATTERY TEST ). Set the fader and the balance positions to the center. Check if the cell phone with Bluetooth audio functions normally. Make sure the cell phone is properly paired. Make sure the client's phone is compatible with the Acura HFL system. See www.acura.com/handsfreelink for more information. Check the connectors for poor connections or loose terminals.

Scheme 1175

Scheme 1176

Scheme 1177

Scheme 1178

1. Turn the ignition switch to ON (II).
2. Turn on the audio system, and check for sound in each mode (AM/FM and CD or DVD). Is the sound normal? YES -Go to step 3. NO -Go to sound quality diagnosis (see «SOUND QUALITY DIAGNOSIS»(/acura/tsx/ii-2008-2014/remont/entertainment-systems/#audio-system-4-cyl__sound-quality-diagnosis) ), or ( «NO SOUND IS HEARD FROM THE SPEAKER(S) (DISPLAY IS NORMAL) (WITH ELS AUDIO)»(/acura/tsx/ii-2008-2014/remont/entertainment-systems/#audio-system-4-cyl__no-sound-is-heard-from-the) ), or ( «NO SOUND IS HEARD FROM THE SPEAKER(S) (DISPLAY IS NORMAL) (WITH PREMIUM AUDIO)»(/acura/tsx/ii-2008-2014/remont/entertainment-systems/#audio-system-4-cyl__no-sound-is-heard-from-the) ).
3. Press the AUX button, and check if it changes to Bluetooth audio source. Does the audio system change to Bluetooth audio source? YES -Go to step 4. NO -Substitute a known good audio-navigation unit (including the HDD) (see «AUDIO-NAVIGATION UNIT REMOVAL/INSTALLATION»(/acura/tsx/ii-2008-2014/remont/entertainment-systems/#navigation-system-4-cyl__audio-navigation-unit-removalinstallation) ), and recheck. If the symptom/indication goes away, replace the original audio-navigation unit (see «AUDIO-NAVIGATION UNIT REMOVAL/INSTALLATION»(/acura/tsx/ii-2008-2014/remont/entertainment-systems/#navigation-system-4-cyl__audio-navigation-unit-removalinstallation) ).
4. Check if it is connected when switching to Bluetooth audio screen by pressing the AUX button. Is NO CONNECTION displayed? YES -Go to Bluetooth cell phone cannot be paired troubleshooting (see «BLUETOOTH CELL PHONE CANNOT BE PAIRED»(/acura/tsx/ii-2008-2014/remont/entertainment-systems/#handsfreelink-system-4-cyl__bluetooth-cell-phone-cannot-be-paired) ). • NO -Go to step 5.
5. Check if the Bluetooth audio device can be played. Does the Bluetooth audio play? YES -Intermittent failure, the system is OK at this time. • NO -Go to step 6.
6. Turn the ignition switch to LOCK (0).
7. Disconnect the audio-navigation unit connector C (14P) and the HandsFreeLink™ control unit 28P connector.
8. Check for continuity between audio-navigation unit connector C (14P) and the HandsFreeLink™ control unit 28P connector according to the table. CONNECTOR TERMINALS REFERENCE CHART Audio-navigation unit connector HandsFreeLink™ control unit connector Wire color C5 9 GRN C6 10 BLK C13 23 WHT C14 24 RED Is there continuity? YES -Go to step 9. NO -There is an open in the wire(s) between the audio-navigation unit and the HandsFreeLink™ control unit. Replace the affected shielded harness.
9. Disconnect these items: AcuraLink® control unit (XM receiver) connector A (32P) (with AcuraLink®) XM receiver connector A (14P) (without AcuraLink®)
10. Check for continuity between body ground and the HandsFreeLink™ control unit 28P connector according to the table. CONNECTOR TERMINALS REFERENCE CHART HandsFreeLink™ control unit connector Wire color 9 GRN 10 BLK 23 WHT 24 RED Is there continuity? YES -There is a short to body ground in the wire(s) between the audio-navigation unit and the HandsFreeLink™ control unit. Replace the affected shielded harness. • NO -Go to step 11.
11. Check for continuity between the terminals of the HandsFreeLink™ control unit 28P connector according to the table. CONNECTOR TERMINALS REFERENCE CHART From terminal To terminals 22(GRY) 9 (GRN), 10 (BLK), 23 (WHT), 24 (RED) Is there continuity between any of the terminals? YES -There is a short in the wires between the audio-navigation unit and the HandsFreeLink™ control unit. Replace the affected shield harness. • NO -Go to step 12.
12. Reconnect audio-navigation unit connector C (14P) and the HandsFreeLink™ control unit 28P connector.
13. Turn the ignition switch to ON (II).
14. Check if the Bluetooth device can be played. Does the Bluetooth audio play? YES -There is an internal malfunction where the connector for either the Navigation display unit, AcuraLink® control unit (XM receiver) (with AcuraLink®) or the XM receiver (without AcuraLink®) is connected. NO -Go to step 15.
15. Turn the ignition switch to LOCK (0).
16. Disconnect the HandsFreeLink™ control unit 28P connector.
17. Reconnect the AcuraLink® control unit (XM receiver) connector A (32P) (with AcuraLink®) or XM receiver connector A (14P) (without AcuraLink®).
18. Turn the ignition switch to ON (II).
19. Check for XM radio sound. Is the sound normal? YES -Substitute a known good HFL control unit (see «HANDSFREELINK CONTROL UNIT REMOVAL/INSTALLATION»(/acura/tsx/ii-2008-2014/remont/entertainment-systems/#handsfreelink-system-4-cyl__handsfreelinktm-control-unit-removalinstallation) ), and recheck. If the symptom/indication goes away, replace the original HFL control unit (see «HANDSFREELINK CONTROL UNIT REMOVAL/INSTALLATION»(/acura/tsx/ii-2008-2014/remont/entertainment-systems/#handsfreelink-system-4-cyl__handsfreelinktm-control-unit-removalinstallation) ). • NO -Substitute a known good audio-navigation unit (including HDD) (see «AUDIO-NAVIGATION UNIT REMOVAL/INSTALLATION»(/acura/tsx/ii-2008-2014/remont/entertainment-systems/#navigation-system-4-cyl__audio-navigation-unit-removalinstallation) ), and recheck. If the symptom/indication goes away, replace the original audio-navigation unit (see «AUDIO-NAVIGATION UNIT REMOVAL/INSTALLATION»(/acura/tsx/ii-2008-2014/remont/entertainment-systems/#navigation-system-4-cyl__audio-navigation-unit-removalinstallation) ).

No Sound When Bluetooth Audio Is Used (Without Navigation)

Note. Check the vehicle battery condition first (see BATTERY TEST ). Set the fader and the balance positions to the center. Check if the cell phone with Bluetooth audio functions normally. Make sure the cell phone is properly paired. Make sure the client's phone is compatible with the Acura HFL system. See www.acura.com/handsfreelink for more information. Check the connectors for poor connections or loose terminals.

1. Turn the ignition switch to ON (II).
2. Turn on the audio system, and check for sound in each mode (AM/FM and CD or DVD). Is the sound normal? YES -Go to step 3. NO -Go to sound quality diagnosis (see «SOUND QUALITY DIAGNOSIS»(/acura/tsx/ii-2008-2014/remont/entertainment-systems/#audio-system-4-cyl__sound-quality-diagnosis) ), or ( «NO SOUND IS HEARD FROM THE SPEAKER(S) (DISPLAY IS NORMAL) (WITH ELS AUDIO)»(/acura/tsx/ii-2008-2014/remont/entertainment-systems/#audio-system-4-cyl__no-sound-is-heard-from-the) ), or ( «NO SOUND IS HEARD FROM THE SPEAKER(S) (DISPLAY IS NORMAL) (WITH PREMIUM AUDIO)»(/acura/tsx/ii-2008-2014/remont/entertainment-systems/#audio-system-4-cyl__no-sound-is-heard-from-the) ).
3. Press the AUX button, and check if it changes to Bluetooth audio source. Does the audio system change to Bluetooth audio source? YES -Go to step 4. NO -Substitute a known good audio unit (see «AUDIO UNIT REMOVAL/INSTALLATION»(/acura/tsx/ii-2008-2014/remont/entertainment-systems/#audio-system-4-cyl) ), and recheck. If the symptom/indication goes away, replace the original audio unit (see «AUDIO UNIT REMOVAL/INSTALLATION»(/acura/tsx/ii-2008-2014/remont/entertainment-systems/#audio-system-4-cyl) ).
4. Check if it is connected when switching to Bluetooth audio screen by pressing the AUX button. Is NO CONNECTION displayed? YES -Go to Bluetooth cell phone cannot be paired troubleshooting (see «BLUETOOTH CELL PHONE CANNOT BE PAIRED»(/acura/tsx/ii-2008-2014/remont/entertainment-systems/#handsfreelink-system-4-cyl__bluetooth-cell-phone-cannot-be-paired) ). • NO -Go to step 5.
5. Check if the Bluetooth audio device can be played. Does the Bluetooth audio play? YES -Intermittent failure, the system is OK at this time. • NO -Go to step 6.
6. Turn the ignition switch to LOCK (0).
7. Disconnect the audio-navigation unit connector E (14P) and the HandsFreeLink™ control unit 28P connector.
8. Check for continuity between audio unit connector E (14P) and the HandsFreeLink™ control unit 28P connector according to the table. CONNECTOR TERMINALS REFERENCE CHART Audio unit connector HandsFreeLink™ control unit connector Wire color E5 9 GRN E6 10 BLK E13 23 WHT E14 24 RED Is there continuity? YES -Go to step 9. NO -There is an open in the wire(s) between the audio unit and the HandsFreeLink™ control unit. Replace the affected shielded harness.
9. Disconnect XM receiver connector A (14P) and USB adapter control unit connector A (14P).
10. Check for continuity between body ground and the HandsFreeLink™ control unit 28P connector according to the table. CONNECTOR TERMINALS REFERENCE CHART HandsFreeLink™ control unit connector Wire color 9 GRN 10 BLK 23 WHT 24 RED Is there continuity? YES -There is a short to body ground in the wire(s) between the audio unit and the HandsFreeLink™ control unit. Replace the affected shielded harness. • NO -Go to step 11.
11. Check for continuity between the terminals of the HandsFreeLink™ control unit 28P connector according to the table. CONNECTOR TERMINALS REFERENCE CHART From terminal To terminals 22(GRY) 9 (GRN), 10 (BLK), 23 (WHT), 24 (RED) Is there continuity between any of the terminals? YES -There is a short in the wires between the audio unit and the HandsFreeLink™ control unit. Replace the affected shield harness. • NO -Go to step 12.
12. Reconnect audio unit connector E (14P) and the HandsFreeLink™ control unit 28P connector.
13. Turn the ignition switch to ON (II).
14. Check if the Bluetooth device can be played. Does the Bluetooth audio play? YES -There is an internal malfunction in the connector for either the XM receiver or USB adapter control unit. • NO -Go to step 15.
15. Turn the ignition switch to LOCK (0).
16. Disconnect the HandsFreeLink™ control unit 28P connector.
17. Reconnect XM receiver connector A (14P) and USB adapter control unit connector A (14P).
18. Turn the ignition switch to ON (II).
19. Check for sound in each mode (XM and USB). Is the sound normal? YES -Substitute a known good HFL control unit (see «HANDSFREELINK CONTROL UNIT REMOVAL/INSTALLATION»(/acura/tsx/ii-2008-2014/remont/entertainment-systems/#handsfreelink-system-4-cyl__handsfreelinktm-control-unit-removalinstallation) ), and recheck. If the symptom/indication goes away, replace the original HFL control unit (see «HANDSFREELINK CONTROL UNIT REMOVAL/INSTALLATION»(/acura/tsx/ii-2008-2014/remont/entertainment-systems/#handsfreelink-system-4-cyl__handsfreelinktm-control-unit-removalinstallation) ). • NO -Substitute a known good audio unit (see «AUDIO UNIT REMOVAL/INSTALLATION»(/acura/tsx/ii-2008-2014/remont/entertainment-systems/#audio-system-4-cyl) ), and recheck. If the symptom/indication goes away, replace the original audio unit (see «AUDIO UNIT REMOVAL/INSTALLATION»(/acura/tsx/ii-2008-2014/remont/entertainment-systems/#audio-system-4-cyl) ).

Bluetooth Audio Does Not Work (With Navigation)

Note. Check the vehicle battery condition first (see BATTERY TEST ). Check the connectors for poor connections or loose terminals. Check if the cell phone with Bluetooth audio functions normally. Make sure the cell phone is properly paired. Make sure the client's phone is compatible with the Acura HFL system. See www.acura.com/handsfreelink for more information.

1. Turn the ignition switch to ON (II).
2. Turn on the audio system, and press the AUX button to select Bluetooth audio source. Does the audio system change to Bluetooth audio source? YES -Go to step 3. NO -Substitute a known-good audio-navigation unit (including the HDD) (see «AUDIO-NAVIGATION UNIT REMOVAL/INSTALLATION»(/acura/tsx/ii-2008-2014/remont/entertainment-systems/#navigation-system-4-cyl__audio-navigation-unit-removalinstallation) ), and recheck. If the symptom/indication goes away, replace the original audio-navigation unit (see «AUDIO-NAVIGATION UNIT REMOVAL/INSTALLATION»(/acura/tsx/ii-2008-2014/remont/entertainment-systems/#navigation-system-4-cyl__audio-navigation-unit-removalinstallation) ).
3. Check if the Bluetooth audio device can be played. Does the Bluetooth audio play? YES -Intermittent failure, the system is OK at this time. NO -Go to step 4.
4. Pair and check the Bluetooth device function on a known-good vehicle equipped with Bluetooth audio. Is the Bluetooth device normal? YES -Check online at www.acura.com/handsfreelink or call the HFL call center at 888-528-7876 to make sure the cell phone is compatible with the HFL system and that there are no known issues. NO -The Bluetooth device is defective or is not compatible.
5. Turn the ignition switch to LOCK (0).
6. Disconnect audio-navigation unit connector C (14P) and the HandsFreeLink™ control unit 28P connector.
7. Check for continuity between audio-navigation unit connector C (14P) and the HandsFreeLink™ control unit 28P connector according to the table. CONNECTOR TERMINALS REFERENCE CHART Audio-navigation unit connector HandsFreeLink™ control unit connector Wire color C9 4 RED C10 5 GRN Is there continuity? YES -Go to step 8. NO -There is an open in the wire(s) between the audio-navigation unit and the HandsFreeLink™ control unit. Replace the affected shielded harness.
8. Disconnect these items: Navigation display unit 28P connector AcuraLink® control unit (XM receiver) connector A (32P) (with AcuraLink®) XM receiver connector A (14P) (without AcuraLink®)
9. Check for continuity between body ground and the HandsFreeLink™ control unit 28P connector according to the table. CONNECTOR TERMINALS REFERENCE CHART HandsFreeLink™ control unit connector Wire color 4 RED 5 GRN Is there continuity? YES -There is a short to body ground in the wire(s) between the audio-navigation unit and the HandsFreeLink™ control unit. Replace the affected shielded harness. • NO -Go to step 10.
10. Check for continuity between the terminals of the HandsFreeLink™ control unit 28P connector according to the table. CONNECTOR TERMINALS REFERENCE CHART From terminal To terminals 19(GRY) 4 (RED), 5 (GRN) Is there continuity between any of the terminals? YES -There is a short in the wires between the audio-navigation unit and the HandsFreeLink™ control unit. Replace the affected shield harness. • NO -Go to step 11.
11. Reconnect audio-navigation unit connector C (14P) and the HandsFreeLink™ control unit 28P connector.
12. Turn the ignition switch to ON (II).
13. Check if the Bluetooth device can be played. Does the Bluetooth audio play? YES -There is an internal malfunction where the connector for either the Navigation display unit, AcuraLink® control unit (XM receiver) (with AcuraLink®) or the XM receiver (without AcuraLink®) is connected. NO -Go to step 14.
14. Turn the ignition switch to LOCK (0).
15. Disconnect the HandsFreeLink™ control unit 28P connector.
16. Reconnect the navigation display unit 28P connector, AcuraLink® control unit (XM receiver) connector A (32P) (with AcuraLink®) or XM receiver connector A (14P) (without AcuraLink®).
17. Turn the ignition switch to ON (II).
18. Check for the navigation system hard error code (see «HOW TO CHECK ERROR HISTORY (NAVIGATION DTCS)»(/acura/tsx/ii-2008-2014/remont/entertainment-systems/#navigation-system-4-cyl__how-to-check-error-history-navigation) ). Are there any navigation DTC's related to the Display or XM systems? YES -Substitute a known-good audio-navigation unit (including the HDD) (see «AUDIO-NAVIGATION UNIT REMOVAL/INSTALLATION»(/acura/tsx/ii-2008-2014/remont/entertainment-systems/#navigation-system-4-cyl__audio-navigation-unit-removalinstallation) ), and recheck. If the symptom/indication goes away, replace the original audio-navigation unit (see «AUDIO-NAVIGATION UNIT REMOVAL/INSTALLATION»(/acura/tsx/ii-2008-2014/remont/entertainment-systems/#navigation-system-4-cyl__audio-navigation-unit-removalinstallation) ). • NO -Substitute a known-good HandsFreeLink™ control unit (see «HANDSFREELINK CONTROL UNIT REMOVAL/INSTALLATION»(/acura/tsx/ii-2008-2014/remont/entertainment-systems/#handsfreelink-system-4-cyl__handsfreelinktm-control-unit-removalinstallation) ), and recheck. If the symptom/indication goes away, replace the original HandsFreeLink™ control unit (see «HANDSFREELINK CONTROL UNIT REMOVAL/INSTALLATION»(/acura/tsx/ii-2008-2014/remont/entertainment-systems/#handsfreelink-system-4-cyl__handsfreelinktm-control-unit-removalinstallation) ).

Bluetooth audio does not work (without navigation)

Note. Check the vehicle battery condition first (see BATTERY TEST ). Check the connectors for poor connections or loose terminals. Check if the cell phone with Bluetooth audio functions normally. Make sure the cell phone is properly paired. Make sure the client's phone is compatible with the Acura HFL system. See www.acura.com/handsfreelink for more information.

Scheme 1179

Scheme 1180

Scheme 1181

Scheme 1182

1. Turn the ignition switch to ON (II).
2. Turn on the audio unit, and press the AUX button to select Bluetooth audio source. Does the audio system change to Bluetooth audio source? YES -Go to step 3. NO -Substitute a known-good audio unit (see «AUDIO UNIT REMOVAL/INSTALLATION»(/acura/tsx/ii-2008-2014/remont/entertainment-systems/#audio-system-4-cyl) ) and recheck. If the symptom/indication goes away, replace the original audio unit (see «AUDIO UNIT REMOVAL/INSTALLATION»(/acura/tsx/ii-2008-2014/remont/entertainment-systems/#audio-system-4-cyl) ).
3. Check if the Bluetooth device can be played. Does the Bluetooth audio play? YES -Intermittent failure, the system is OK at this time. NO -Go to step 4.
4. Register and check the Bluetooth audio device function on a known-good vehicle equipped with Bluetooth audio. Is the Bluetooth device normal? YES -Check online at www.acura.com/handsfreelink or call the HFL call center at 888-528-7876 to make sure the cell phone is compatible with the HFL system and that there are no known issues. NO -The Bluetooth device is defective or is not compatible.
5. Turn the ignition switch to LOCK (0).
6. Disconnect audio unit connector E (14P) and the HandsFreeLink™ control unit 28P connector.
7. Check for continuity between audio unit connector E (14P) and the HandsFreeLink™ control unit 28P connector according to the table. CONNECTOR TERMINALS REFERENCE CHART Audio unit connector HandsFreeLink™ control unit connector Wire color E9 4 GRN E10 5 RED Is there continuity? YES -Go to step 8. NO -There is an open in the wire(s) between the audio unit and the HandsFreeLink™ control unit. Replace the affected shielded harness.
8. Disconnect XM receiver connector A (14P) and USB adapter control unit connector A (14P).
9. Check for continuity between body ground and the HandsFreeLink™ control unit 28P connector according to the table. CONNECTOR TERMINALS REFERENCE CHART HandsFreeLink™ control unit connector Wire color 4 GRN 5 RED Is there continuity? YES -There is a short to body ground in the wire(s) between the audio unit and the HandsFreeLink™ control unit. Replace the affected shielded harness. NO -Go to step 10.
10. Check for continuity between the terminals of the HandsFreeLink™ control unit 28P connector according to the table. CONNECTOR TERMINALS REFERENCE CHART From terminal To terminals 19(GRY) 4 (RED), 5 (GRN) Is there continuity between any of the terminals? YES -There is a short in the wires between the audio unit and the HandsFreeLink™ control unit. Replace the affected shield harness. NO -Go to step 11.
11. Reconnect audio unit connector E (14P) and the HandsFreeLink™ control unit 28P connector.
12. Turn the ignition switch to ON (II).
13. Check if the Bluetooth device can be played. Does the Bluetooth audio play? YES -There is an internal malfunction in the connector for either the XM receiver or USB adapter control unit. NO -Go to step 14.
14. Turn the ignition switch to LOCK (0).
15. Disconnect the HandsFreeLink™ control unit 28P connector.
16. Reconnect XM receiver connector A (14P) and USB adapter control unit connector A (14P).
17. Turn the ignition switch to ON (II).
18. Check for sound in each mode (XM and USB). Is the sound normal? YES -Substitute a known-good HandsFreeLink™ control unit (see «HANDSFREELINK CONTROL UNIT REMOVAL/INSTALLATION»(/acura/tsx/ii-2008-2014/remont/entertainment-systems/#handsfreelink-system-4-cyl__handsfreelinktm-control-unit-removalinstallation) ), and recheck. If the symptom/indication goes away, replace the original HandsFreeLink™ control unit (see «HANDSFREELINK CONTROL UNIT REMOVAL/INSTALLATION»(/acura/tsx/ii-2008-2014/remont/entertainment-systems/#handsfreelink-system-4-cyl__handsfreelinktm-control-unit-removalinstallation) ). • NO -Substitute a known-good audio unit (see «AUDIO UNIT REMOVAL/INSTALLATION»(/acura/tsx/ii-2008-2014/remont/entertainment-systems/#audio-system-4-cyl) ), and recheck. If the symptom/indication goes away, replace the original audio unit (see «AUDIO UNIT REMOVAL/INSTALLATION»(/acura/tsx/ii-2008-2014/remont/entertainment-systems/#audio-system-4-cyl) ).

Bluetooth cell phone cannot be paired

Note. Check the vehicle battery condition first (see BATTERY TEST ). Check the connectors for poor connections or loose terminals. When six Bluetooth phones are already paired, delete a device before pairing another one (see PAIRING TROUBLESHOOTING ).

1. Turn the ignition switch to ON (II).
2. Press the PICK-UP button (with navigation) or HFL TALK button (without navigation). Does a beep sound? YES -Go to step 3. NO -Go to step 6 .
3. Check online at www.acura.com/handsfreelink or call the HFL call center at 888-528-7876 to make sure the Bluetooth phone is compatible with the HFL system and that there are no known issues.
4. If you have the client's Bluetooth phone, go to step 5. Otherwise, pair a known-good Bluetooth phone to the client's vehicle. Can you pair the Bluetooth phone, and does it operate normally? YES -The client's Bluetooth phone is defective or not compatible. NO -Go to step 6 .
5. Pair the client's Bluetooth phone to a known-good vehicle. Can you pair the Bluetooth phone, and does it operate normally? YES -Go to step 6. NO -The client's Bluetooth phone is defective or not compatible.
6. Connect the HDS to the DLC (see «HOW TO CHECK FOR DTCS WITH THE HDS»(/acura/tsx/ii-2008-2014/remont/entertainment-systems/#handsfreelink-system-4-cyl) ).
7. Clear the DTCs with the HDS.
8. Turn the ignition switch to LOCK (0) and then back to ON (II).
9. Check for DTCs. Is there any DTCs indicated? YES -Troubleshoot the indicated DTCs. NO -Go to Voice control does not work/respond troubleshooting (see «VOICE CONTROL DOES NOT WORK/RESPOND»(/acura/tsx/ii-2008-2014/remont/entertainment-systems/#navigation-system-4-cyl__voice-control-does-not-workrespond) ) or HFL Switch Test (see «HFL SWITCH TEST»(/acura/tsx/ii-2008-2014/remont/entertainment-systems/#handsfreelink-system-4-cyl__hfl-switch-test) ).

The communication with cell phone is interrupted or changes (with navigation)

Note. Check the vehicle battery condition first (see BATTERY TEST ). Check the connectors for poor connections or loose terminals. Check if the audio system functions normally. The connected device may not function properly when it is in the trunk or in a metallic case. Check online at www.acura.com/handsfreelink or call the HFL call center at 888-528-7876 to make sure the Bluetooth phone is compatible with the HFL system and that there are no known issues.

1. Turn the ignition switch to ON (II).
2. Turn on the audio system, and check for sound in each mode (AM/FM and CD). Is the sound normal? YES -Go to step 3. NO -Go to Sound Quality Diagnosis (see «SOUND QUALITY DIAGNOSIS»(/acura/tsx/ii-2008-2014/remont/entertainment-systems/#audio-system-4-cyl__sound-quality-diagnosis) ) or No sound is heard from the speaker(s) (display is normal) troubleshooting (see «NO SOUND IS HEARD FROM THE SPEAKER(S) (DISPLAY IS NORMAL) (WITH ELS AUDIO)»(/acura/tsx/ii-2008-2014/remont/entertainment-systems/#audio-system-4-cyl__no-sound-is-heard-from-the) ).
3. Try and duplicate the symptom. Can you duplicate the symptom? YES -Go to step 4. NO -Intermittent failure, the system is OK at this time.
4. Check for communication problems with the paired phone. Does the symptom occur in a sped ft place or under a specific condition? YES -Intermittent failure. Influence or electric wave interference. NO -Go to step 5.
5. If you have the client's Bluetooth phone, go to step 6. Otherwise, pair a known-good Bluetooth phone to the client's vehicle. Can you pair the Bluetooth phone, and does it operate normally? YES -The client's Bluetooth phone is defective or not compatible. NO -Go to step 7 .
6. Pair the client's Bluetooth phone to a known-good vehicle. Can you pair the Bluetooth phone, and does it operate normally? YES -Go to step 7. NO -The client's Bluetooth phone is defective or not compatible.
7. Turn the ignition switch to LOCK (0).
8. Check the connections at the HandsFreeLink™ control unit 28P connector and audio-navigation unit connector C (14P) terminals. Are the connections and terminals connected properly? YES -Substitute a known-good HandsFreeLink™ control unit (see «HANDSFREELINK CONTROL UNIT REMOVAL/INSTALLATION»(/acura/tsx/ii-2008-2014/remont/entertainment-systems/#handsfreelink-system-4-cyl__handsfreelinktm-control-unit-removalinstallation) ), and recheck. If the symptom/indication goes away, replace the original HandsFreeLink™ control unit (see «HANDSFREELINK CONTROL UNIT REMOVAL/INSTALLATION»(/acura/tsx/ii-2008-2014/remont/entertainment-systems/#handsfreelink-system-4-cyl__handsfreelinktm-control-unit-removalinstallation) ). NO -Repair the connection, and recheck.

The communication with cell phone is interrupted or changes (without navigation)

Note. Check the vehicle battery condition first (see BATTERY TEST ). Check the connectors for poor connections or loose terminals. Check if the audio system functions normally. The connected device may not function properly when it is in the trunk or in a metallic case. Check online at www.acura.com/handsfreelink or call the HFL call center at 888-528-7876 to make sure the Bluetooth phone is compatible with the HFL system and that there are no known issues.

1. Turn the ignition switch to ON (II).
2. Turn on the audio unit, and check for sound in each mode (AM/FM and CD). Is the sound normal? YES -Go to step 3. NO -Go to Sound Quality Diagnosis (see «SOUND QUALITY DIAGNOSIS»(/acura/tsx/ii-2008-2014/remont/entertainment-systems/#audio-system-4-cyl__sound-quality-diagnosis) ) or No sound is heard from the speaker(s) (display is normal) troubleshooting (see «NO SOUND IS HEARD FROM THE SPEAKER(S) (DISPLAY IS NORMAL) (WITH PREMIUM AUDIO)»(/acura/tsx/ii-2008-2014/remont/entertainment-systems/#audio-system-4-cyl__no-sound-is-heard-from-the) ).
3. Try and duplicate the symptom. Can you duplicate the symptom? YES -Go to step 4. NO -Intermittent failure, the system is OK at this time.
4. Check for communication problems with the paired phone. Does the symptom occur in a specific place or under a specific condition? YES -Intermittent failure. Influence or electric wave interference. NO -Go to step 5.
5. If you have the client's Bluetooth phone, go to step 6. Otherwise, pair a known-good Bluetooth phone to the client's vehicle. Can you pair the Bluetooth phone, and does it operate normally? YES -The client's Bluetooth phone is defective or not compatible. NO -Go to step 7 .
6. Pair the client's Bluetooth phone to a known-good vehicle. Can you pair the Bluetooth phone, and does it operate normally? YES -Go to step 7. NO -The client's Bluetooth phone is defective or not compatible.
7. Turn the ignition switch to LOCK (0).
8. Check the connections at the HandsFreeLink™ control unit 28P connector and audio unit connector E (14P) terminals. Are the connections and terminals connected properly? YES -Substitute a known-good HandsFreeLink™ control unit (see «HANDSFREELINK CONTROL UNIT REMOVAL/INSTALLATION»(/acura/tsx/ii-2008-2014/remont/entertainment-systems/#handsfreelink-system-4-cyl__handsfreelinktm-control-unit-removalinstallation) ), and recheck. If the symptom/indication goes away, replace the original HandsFreeLink™ control unit (see «HANDSFREELINK CONTROL UNIT REMOVAL/INSTALLATION»(/acura/tsx/ii-2008-2014/remont/entertainment-systems/#handsfreelink-system-4-cyl__handsfreelinktm-control-unit-removalinstallation) ). NO -Repair the connection, and recheck.

Pairing instructions are not displayed on the screen

Note. Check the vehicle battery condition first (see BATTERY TEST ). Check the connectors for poor connections or loose terminals. Check online at www.acura.com/handsfreelink or call the HFL call center at 888-528-7876 to make sure the Bluetooth phone is compatible with the HFL system and that there are no known issues.

1. Turn the ignition switch to ON (II).
2. Turn on the audio system, and press the USB/AUX button to select Bluetooth audio source. Does it change to Bluetooth audio source? YES -Go to step 3. NO -Go to Bluetooth audio does not work troubleshooting: With navigation (see «BLUETOOTH AUDIO DOES NOT WORK (WITH NAVIGATION)»(/acura/tsx/ii-2008-2014/remont/entertainment-systems/#handsfreelink-system-4-cyl__bluetooth-audio-does-not-work-with) ). Without navigation (see «BLUETOOTH AUDIO DOES NOT WORK (WITHOUT NAVIGATION)»(/acura/tsx/ii-2008-2014/remont/entertainment-systems/#handsfreelink-system-4-cyl__bluetooth-audio-does-not-work-without) ).
3. Check if the Bluetooth device can be played. Does the Bluetooth audio play? YES - Go to step 4. NO - Go to No sound when Bluetooth audio is used troubleshooting: With navigation (see «BLUETOOTH AUDIO DOES NOT WORK (WITH NAVIGATION)»(/acura/tsx/ii-2008-2014/remont/entertainment-systems/#handsfreelink-system-4-cyl__bluetooth-audio-does-not-work-with) ). Without navigation (see «BLUETOOTH AUDIO DOES NOT WORK (WITH NAVIGATION)»(/acura/tsx/ii-2008-2014/remont/entertainment-systems/#handsfreelink-system-4-cyl__bluetooth-audio-does-not-work-with) ).
4. If you have the client's Bluetooth phone, go to step 5. Otherwise, pair a known-good Bluetooth phone to the client's vehicle. Can you pair the Bluetooth phone, and does it operate normally? YES -The client's Bluetooth phone is defective or not compatible. NO -Substitute a known-good HandsFreeLink™ control unit (see «HANDSFREELINK CONTROL UNIT REMOVAL/INSTALLATION»(/acura/tsx/ii-2008-2014/remont/entertainment-systems/#handsfreelink-system-4-cyl__handsfreelinktm-control-unit-removalinstallation) ), and recheck. If the symptom/indication goes away, replace the original HandsFreeLink™ control unit (see «HANDSFREELINK CONTROL UNIT REMOVAL/INSTALLATION»(/acura/tsx/ii-2008-2014/remont/entertainment-systems/#handsfreelink-system-4-cyl__handsfreelinktm-control-unit-removalinstallation) ).
5. Pair the client's Bluetooth phone to a known-good vehicle. Can you pair the Bluetooth phone, and does it operate normally? YES -Substitute a known-good HandsFreeLink™ control unit (see «HANDSFREELINK CONTROL UNIT REMOVAL/INSTALLATION»(/acura/tsx/ii-2008-2014/remont/entertainment-systems/#handsfreelink-system-4-cyl__handsfreelinktm-control-unit-removalinstallation) ), and recheck. If the symptom/indication goes away, replace the original HandsFreeLink™ control unit (see «HANDSFREELINK CONTROL UNIT REMOVAL/INSTALLATION»(/acura/tsx/ii-2008-2014/remont/entertainment-systems/#handsfreelink-system-4-cyl__handsfreelinktm-control-unit-removalinstallation) ). NO -The client's Bluetooth phone is defective or not compatible.

Bluetooth cell phone audio function SKIP and PAUSE/RESUME do not work (with navigation)

Note. Check the vehicle battery condition first (see BATTERY TEST ). Check the connectors for poor connections or loose terminals. Check if the audio system functions normally. Check if it functioned normally at the time of initial pairing. Some mobile phones do not support the function. Check online at www.acura.com/handsfreelink or call the HFL call center at 888-528-7876 to make sure the Bluetooth phone is compatible with the HFL system and that there are no known issues.

1. Turn the ignition switch to ON (II).
2. Turn on the audio system, and check that MENU, SKIP, and TITLE button function normally with the audio-navigation switch panel. Is the button operation OK? YES -Go to step 3. NO -Go to Audio system button does not work troubleshooting (see «AUDIO SYSTEM BUTTON DOES NOT WORK (WITH ELS AUDIO)»(/acura/tsx/ii-2008-2014/remont/entertainment-systems/#audio-system-4-cyl__audio-system-button-does-not-work) ).
3. Check if the Bluetooth device can be played. Does the Bluetooth audio play? YES -Go to step 4. NO -Go to No sound when Bluetooth audio is used troubleshooting (see «BLUETOOTH AUDIO DOES NOT WORK (WITH NAVIGATION)»(/acura/tsx/ii-2008-2014/remont/entertainment-systems/#handsfreelink-system-4-cyl__bluetooth-audio-does-not-work-with) ).
4. If you have the client's phone, go to step 5. Otherwise, pair a known-good cell phone to the client's vehicle. Can you pair the Bluetooth phone, and does it operate normally? YES -The client's Bluetooth phone is defective or not compatible. NO -Substitute a known-good HandsFreeLink™ control unit (see «HANDSFREELINK CONTROL UNIT REMOVAL/INSTALLATION»(/acura/tsx/ii-2008-2014/remont/entertainment-systems/#handsfreelink-system-4-cyl__handsfreelinktm-control-unit-removalinstallation) ), and recheck. If the symptom/indication goes away, replace the original HandsFreeLink™ control unit (see «HANDSFREELINK CONTROL UNIT REMOVAL/INSTALLATION»(/acura/tsx/ii-2008-2014/remont/entertainment-systems/#handsfreelink-system-4-cyl__handsfreelinktm-control-unit-removalinstallation) ).
5. Pair the client's phone to a known-good vehicle. Can you pair the Bluetooth phone, and does it operate normally? YES -Substitute a known-good HandsFreeLink™ control unit (see «HANDSFREELINK CONTROL UNIT REMOVAL/INSTALLATION»(/acura/tsx/ii-2008-2014/remont/entertainment-systems/#handsfreelink-system-4-cyl__handsfreelinktm-control-unit-removalinstallation) ), and recheck. If the symptom/indication goes away, replace the original HandsFreeLink™ control unit (see «HANDSFREELINK CONTROL UNIT REMOVAL/INSTALLATION»(/acura/tsx/ii-2008-2014/remont/entertainment-systems/#handsfreelink-system-4-cyl__handsfreelinktm-control-unit-removalinstallation) ). NO -The client's Bluetooth phone is defective or not compatible.

Bluetooth cell phone audio function SKIP and PAUSE/RESUME do not work (without navigation)

Note. Check the vehicle battery condition first (see BATTERY TEST ). Check the connectors for poor connections or loose terminals. Check if the audio system functions normally. Check if it functioned normally at the time of initial pairing. Some mobile phones do not support the function. Check online at www.acura.com/handsfreelink or call the HFL call center at 888-528-7876 to make sure the Bluetooth phone is compatible with the HFL system and that there are no known issues.

1. Turn the ignition switch to ON (II).
2. Turn on the audio unit, and check that SKIP and SETUP button function normally with the audio unit. Is the audio unit operation OK? YES -Go to step 3. NO -Go to Audio unit button does not work troubleshooting (see «AUDIO SYSTEM BUTTON DOES NOT WORK (WITH ELS AUDIO)»(/acura/tsx/ii-2008-2014/remont/entertainment-systems/#audio-system-4-cyl__audio-system-button-does-not-work) ).
3. Check if the Bluetooth device can be played. Does the Bluetooth audio play? YES -Go to step 4. NO -Go to No sound when Bluetooth audio is used troubleshooting (see «BLUETOOTH AUDIO DOES NOT WORK (WITH NAVIGATION)»(/acura/tsx/ii-2008-2014/remont/entertainment-systems/#handsfreelink-system-4-cyl__bluetooth-audio-does-not-work-with) ).
4. If you have the client's phone, go to step 5. Otherwise, pair a known-good cell phone to the client's vehicle. Can you pair the Bluetooth phone, and does it operate normally? YES -The client's Bluetooth phone is defective or not compatible. NO -Substitute a known-good HandsFreeLink™ control unit (see «HANDSFREELINK CONTROL UNIT REMOVAL/INSTALLATION»(/acura/tsx/ii-2008-2014/remont/entertainment-systems/#handsfreelink-system-4-cyl__handsfreelinktm-control-unit-removalinstallation) ), and recheck. If the symptom/indication goes away, replace the original HandsFreeLink™ control unit (see «HANDSFREELINK CONTROL UNIT REMOVAL/INSTALLATION»(/acura/tsx/ii-2008-2014/remont/entertainment-systems/#handsfreelink-system-4-cyl__handsfreelinktm-control-unit-removalinstallation) ).
5. Pair the client's phone to a known-good vehicle. Can you pair the Bluetooth phone, and does it operate normally? YES -Substitute a known-good HandsFreeLink™ control unit (see «HANDSFREELINK CONTROL UNIT REMOVAL/INSTALLATION»(/acura/tsx/ii-2008-2014/remont/entertainment-systems/#handsfreelink-system-4-cyl__handsfreelinktm-control-unit-removalinstallation) ), and recheck. If the symptom/indication goes away, replace the original HandsFreeLink™ control unit (see «HANDSFREELINK CONTROL UNIT REMOVAL/INSTALLATION»(/acura/tsx/ii-2008-2014/remont/entertainment-systems/#handsfreelink-system-4-cyl__handsfreelinktm-control-unit-removalinstallation) ). NO -The client's Bluetooth phone is defective or not compatible.

HFL Switch Test

SRS components are located in this area. Review the SRS component locations (see COMPONENT LOCATION INDEX ) and the precautions and procedures (see PRECAUTIONS AND PROCEDURES ) before doing repairs or service.

Scheme 1183

Scheme 1184

1. Remove the HFL switch (see «VOICE CONTROL SWITCH REPLACEMENT»(/acura/tsx/ii-2008-2014/remont/entertainment-systems/#navigation-system-4-cyl__voice-control-switch-replacement) ).
2. Measure the resistance between terminals No. 4 and No. 5 in each switch position according to the table. HFL Switch (with navigation) RESISTANCE REFERENCE CHART Position Resistance No button pressed About 10k ohms PICK-UP button pressed About 47 ohms HANG-UP button pressed About 220 ohms HFL Switch (without navigation) RESISTANCE REFERENCE CHART Position Resistance No button pressed About 1 kohms HFL TALK button pressed About 45 ohms HFL BACK button pressed About 185 ohms
3. If the resistance is not as specified, replace the HFL-navigation voice control switch (see «VOICE CONTROL SWITCH REPLACEMENT»(/acura/tsx/ii-2008-2014/remont/entertainment-systems/#navigation-system-4-cyl__voice-control-switch-replacement) ) or HFL switch (see «HFL SWITCH REPLACEMENT»(/acura/tsx/ii-2008-2014/remont/entertainment-systems/#handsfreelink-system-4-cyl__hfl-switch-replacement) ).

HFL Switch Replacement

SRS components are located in this area. Review the SRS component locations (see COMPONENT LOCATION INDEX ) and the precautions and procedures (see PRECAUTIONS AND PROCEDURES ) before doing repairs or service.

Scheme 1185

Scheme 1186

1. Remove the driver's airbag assembly (see «REMOVAL»(/acura/tsx/ii-2008-2014/remont/airbag/#srs-supplemental-restraint-system-4-cyl__removal) ).
2. Remove the covers (A) and screws from the steering wheel (B).
3. Disconnect the connectors from the steering switches, then remove the steering wheel trim (C).
4. Remove the screws (A) and the HFL switch (B).
5. Install the HFL switch in the reverse order of removal.

Scheme 1187

Scheme 1188

1. Remove the front individual map light (see «FRONT INDIVIDUAL MAP LIGHT TEST/REPLACEMENT»(/acura/tsx/ii-2008-2014/remont/interiorillumination-lights/#interior-lights-4-cyl) ).
2. Disconnect the 3P connector (A) from the HFL microphone.
3. Carefully pry off the moon roof switch assembly (B) from the map light housing (C) while pressing in on the retaining tabs (D).
4. Remove the screw and the HFL microphone (A).
5. Install the HFL microphone in the reverse order of removal.

HandsFreeLink™ Control Unit Removal/Installation

Note. Tell the client they need to write down all phone numbers stored in the HFL and the navigation imported phone book as there is no way to transfer the information in the original HandsFreeLink™ control unit to a new HandsFreeLink™ control unit.

Scheme 1189

1. Remove the passenger's dashboard undercover (see «PASSENGER'S DASHBOARD UNDERCOVER REMOVAL/INSTALLATION»(/acura/tsx/ii-2008-2014/remont/gauges-instrument-panels/#dashboard-4-cyl__passengers-dashboard-undercover-removalinstallation) ).
2. Disconnect the 28P connector (A) from the HandsFreeLink™ control unit (B), and remove it.
3. Install the HandsFreeLink™ control unit in the reverse order of removal. After replacing the HandsFreeLink™ control unit, tell the client: They need to pair their phones to the system. They need to set up their system preferences.

Scheme 1190

1. Remove the passenger's dashboard undercover (see «PASSENGER'S DASHBOARD UNDERCOVER REMOVAL/INSTALLATION»(/acura/tsx/ii-2008-2014/remont/gauges-instrument-panels/#dashboard-4-cyl__passengers-dashboard-undercover-removalinstallation) ).
2. Remove the HandsFreeLink™ control unit (A) (see step 2 on ).
3. Inspect the connector (B) and socket terminals for a good pinfit to be sure they are all making good contact. If the terminals are bent, loose or corroded, repair them as necessary, and recheck the system. If the terminals look OK, go to step 4.
4. Reconnect the connector, and make these input tests at the connector. If any test indicates a problem, find and correct the cause, then recheck the system. If all the input tests prove OK, go to step 5. INPUT TEST REFERENCE CHART Cavity Wire Color Test Condition Test: Desired Result Possible Cause if Desired Result is not Obtained 1 BLK Under all conditions Measure the voltage to ground: There should be less than 0.2 V. Poor ground (G401) An open in the wire 15 WHT Under all conditions Measure the voltage to ground: There should be battery voltage. Blown No. 15 (10 A) fuse in the under-hood fuse/relay box An open in the wire 16 PUR Ignition switch in ACC (I) or ON (II) Measure the voltage to ground: There should be battery voltage. Blown No. 18 (7.5 A) fuse in the driver's under-dash fuse/relay box An open in the wire
5. Disconnect the connector again, and do this input test at the connector. If the test indicates a problem, find and correct the cause, then recheck the system. If the input test proves OK, the HandsFreeLink™ control unit is faulty, replace it (see «HANDSFREELINK CONTROL UNIT REMOVAL/INSTALLATION»(/acura/tsx/ii-2008-2014/remont/entertainment-systems/#handsfreelink-system-4-cyl__handsfreelinktm-control-unit-removalinstallation) ). INPUT TEST REFERENCE CHART Cavity Wire Color Test Condition Test: Desired Result Possible Cause if Desired Result is not Obtained 17 BLU Under all conditions With navigation: Check for continuity between terminal No. 17 and the audio-navigation unit connector D (20P) terminal No. 15; there should be continuity. Without navigation: Check for continuity between terminal No. 17 and the audio unit connector B (20P) terminal No. 8; there should be continuity. An open in the wire 18 PNK Under all conditions With navigation: Check for continuity between terminal No. 18 and the audio-navigation unit connector D (20P) terminal No. 6; there should be continuity. Without navigation: Check for continuity between terminal No. 18 and the audio unit connector B (20P) terminal No. 18; there should be continuity. An open in the wire

See also:
• DLC CIRCUIT TROUBLESHOOTING
• U1280
• TROUBLESHOOTING - B-CAN SYSTEM DIAGNOSIS TEST MODE A
• AUDIO-NAVIGATION UNIT REMOVAL/INSTALLATION
• HFL-NAVIGATION MICROPHONE REMOVAL/INSTALLATION
• AUDIO-NAVIGATION SWITCH PANEL REMOVAL/INSTALLATION
• BATTERY TEST
• SOUND QUALITY DIAGNOSIS
• NO SOUND IS HEARD FROM THE SPEAKER(S) (DISPLAY IS NORMAL) (WITH ELS AUDIO)
• HOW TO CHECK ERROR HISTORY (NAVIGATION DTCS)
• VOICE CONTROL DOES NOT WORK/RESPOND
• AUDIO SYSTEM BUTTON DOES NOT WORK (WITH ELS AUDIO)
• COMPONENT LOCATION INDEX
• VOICE CONTROL SWITCH REPLACEMENT
• REMOVAL
• FRONT INDIVIDUAL MAP LIGHT TEST/REPLACEMENT
• PASSENGER'S DASHBOARD UNDERCOVER REMOVAL/INSTALLATION
• SYMPTOM TROUBLESHOOTING
• DROPPED CALLS
• VOICE CONTROL TIPS AND IMPROVING VOICE RECOGNITION
• B1775
• B1776
• B1779
• B1780
• B1792
• SELF-DIAGNOSTIC FUNCTION
• HFL SYSTEM TROUBLESHOOTING
• HANDSFREELINK CONTROL UNIT REMOVAL/INSTALLATION
• HFL SWITCH TEST
• HFL SWITCH REPLACEMENT
• BLUETOOTH CELL PHONE CANNOT BE PAIRED
• PAIRING TROUBLESHOOTING
• BLUETOOTH AUDIO DOES NOT WORK (WITH NAVIGATION)
• BLUETOOTH AUDIO DOES NOT WORK (WITHOUT NAVIGATION)