Hands Free Link System Acura TL IV

Component Location Index

With Navigation

Scheme 213

Without Navigation

Scheme 214

Scheme 215

1. Make sure the ignition switch is in LOCK (0), or press the engine start/stop button to select the OFF mode
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), or press the engine start/stop button to select the ON mode
4. Make sure the HDS communicates with the vehicle and the HandsFreeLink control unit If it doesn't, troubleshoot the DLC circuit (see «DLC CIRCUIT TROUBLESHOOTING»(/acura/tl/iv-2008-2011/remont/testing-diagnostics/#pgm-fi-system__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/tl/iv-2008-2011/remont/entertainment-systems/#hands-free-link-system) 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 216

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 217

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 handsfreelink com, to answer your questions.

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 (see DROPPED CALLS )

Always call the HFL call center first, (not tech line) the HFL 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.

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 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, archived, 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 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 HFL call center at 888-528-7876 for further assistance 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

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

'09 model: If the HFL system doesn't recognize your voice command, you'll hear "Pardon" If your command isn't recognized a second time, you'll hear "Please repeat" If your command isn't recognized a third time, the HFL system sends you to its Help menu

'10 - 11 model: If the HFL system doesn't 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 HandsfreeHelp." If your command isn't 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 help. For more detailed help, say HandsFreeHelp." If your command isn't 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 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

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

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

Scheme 218

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 don't 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've finished or want to stop a voice command sequence at any time, 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 219

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 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, visit www.acura.com/handsfreelink or call 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 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 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), or press the engine start/stop button to select the ACC mode and make sure the phone you are pairing is on and in its discovery mode
2. Press the INFO 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 ('09 model)

1. With your approved phone on and the ignition switch in ACCESSORY (I) or ON (II), or press the engine start/stop button to select the ACC or ON mode, press and release the HFL TALK button After the beep, say "Phone setup" The HFL responds, "Phone setup options are status, pair, edit, delete, and list"
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 State a four-digit code for pairing. Note this code It will be requested by the phone"
3. Press and release the HFL TALK button. After the beep, say the four-digit code you want to use For example, say "1, 2, 3, 4" The HFL responds, "1, 2, 3, 4. Is this correct?"
4. Press and release the HFL TALK button After the beep, say "Yes" The HFL responds, "HFL is now searching for a Bluetooth phone. Make sure the phone you are trying to pair is in Discovery mode" If these steps do not work on the phone you are pairing, refer to the phone's operating manual
5. Follow the prompts on your phone to get it into its Discovery mode. The phone will search for the HFL. When it comes up, select HandsFreeLink from the list of options displayed on your phone
6. When asked by the phone, enter the four-digit code from step 3 into your phone. The HFL responds, "A new phone has been found. What would you like to name this phone?"
7. 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 Returning to the main menu"

Without navigation ('10 - 11 model

1. With your approved phone on and the ignition switch in ACCESSORY (I) or ON (II), or press the engine start/stop button to select the ACC or ON mode, press and release the HFL TALK button After the beep, say "Phone setup" The HFL responds, "Phone setup options are 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 0000"
3. When prompted by your mobile phone, enter the pairing code 0000. 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

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

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, contact 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

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

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"

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 Audio 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 HANGUP button (C), the HFL BACK button (D), the TALK button (E), or the BACK button (F)

Scheme 220

Outgoing Calls

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 221

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

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 pressing and releasing the TALK button or the HFL TALK button during an active call and saying "Transfer" The client can now continue the call using the HFL system

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), or press the engine start/stop button to select the ACC mode
2. Press the INFO 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 clear" and the HFL system responds, "This process will clear all paired phone, clear all entries in the phonebook, clear the 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 all paired phone, all phonebook entries, the passcode This may take up to 2 minutes to complete"
3. Press and release the HFL TALK button After the beep, say "OK" to proceed, or say "Go back" or "Cancel"
4. If you said "OK", after a short period of time, the HFL system responds, "System has been cleared Returning to the main menu, the Clearing HFL system procedure is now complete"

Without Navigation ('10 - 11 model)

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 phone, 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 222

1. Turn the ignition switch to ON (II), or press the engine start/stop button to select the ON mode
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 is considered start once the 5 seconds press and hold is detected, and ends when the units returns to 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 223

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

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

Standard Ringtone

These ringtones come factory-installed on the cell phone

DTC Troubleshooting Index

HandsFreeLink Control Unit

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 support desk at 888-528-7876 for help before replacing any HFL components

TROUBLESHOOTING CHART

Scheme 224

Scheme 225

CONNECTOR TERMINAL WIRE COLOR REFERENCE

Scheme 226

CONNECTOR TERMINAL WIRE COLOR REFERENCE

Scheme 227

Scheme 228

Scheme 229

Scheme 230

Scheme 231

Scheme 232

Scheme 233

Scheme 234

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 support desk 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 Also check what features are approved as some approved phones may have features that are not compatible with the HandsFreeLink system.

1. Make sure the phone is approved by checking www.acura.com/handsfreelink, or call the HFL support desk at 888-528-7876. Is the Bluetooth phone approved? YES -Go to next step 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 the features of the approved phone at www.acura.com/handsfreelink, or call the HFL support desk at 888-528-7876. Is the Bluetooth phone approved? YES -Go to next step 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 3.
3. Connect the HDS to the DLC
4. Turn the ignition switch to ON (II), or press the engine start/stop button to select the ON mode
5. Check for DTCs Are any DTCs indicated? YES -Repair the indicated DTCs, and recheck NO -Go to step 6
6. Try to duplicate the problem or have the client demonstrate the problem Can you duplicate the problem? YES -Go to step 5 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 support desk 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, and recheck If the problem goes away, replace the original HandsFreeLink control unit (see «HFL SWITCH TEST»(/acura/tl/iv-2008-2011/remont/entertainment-systems/#hands-free-link-system) )

DTC B1775: Microphone Input/Output Short to Power/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 235

Scheme 236

1. Connect the HDS to the DLC (see «GENERAL TROUBLESHOOTING INFORMATION»(/acura/tl/iv-2008-2011/remont/entertainment-systems/#hands-free-link-system) )
2. Clear the DTCs with the HDS
3. Turn the ignition switch to LOCK (0), or press the engine start/stop button to select the OFF mode, then back to ON (II), or the ON mode
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), or press the engine start/stop button to select the OFF mode
6. Disconnect the HFL-navigation microphone 7P connector
7. Remove the center console panel (see «CENTER CONSOLE PANEL REMOVAL/INSTALLATION»(/acura/tl/iv-2008-2011/remont/gauges-instrument-panels/#consoles__center-console-panel-removalinstallation) )
8. Disconnect the HandsFreeLink control unit 28P connector (see step 2 under HANDSFREELINK CONTROL UNIT REMOVAL/INSTALLATION)
9. Turn the ignition switch to ON (II), or press the engine start/stop button to select the ON mode
10. 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 wires between the HandsFreeLink control unit and the HFL-navigation microphone Replace the affected shielded harness NO -Go to step 11
11. Turn the ignition switch to LOCK (0), or press the engine start/stop button to select the OFF mode
12. 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 -Substitute a known-good HandsFreeLink control unit (see «HFL SWITCH TEST»(/acura/tl/iv-2008-2011/remont/entertainment-systems/#hands-free-link-system) ), and recheck If the symptom goes away, replace the original HandsFreeLink control unit If the symptom does not go away, replace the HFL-navigation microphone (see «HFL MICROPHONE REMOVAL/INSTALLATION»(/acura/tl/iv-2008-2011/remont/entertainment-systems/#hands-free-link-system) ) NO -There is an open in the wire between the HandsFreeLink control unit and the HFL-navigation microphone Replace the affected shielded harness

DTC B1775: Microphone Input/Output Short to Power/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 237

Scheme 238

1. Connect the HDS to the DLC (see «GENERAL TROUBLESHOOTING INFORMATION»(/acura/tl/iv-2008-2011/remont/entertainment-systems/#hands-free-link-system) )
2. Clear the DTCs with the HDS
3. Turn the ignition switch to LOCK (0), or press the engine start/stop button to select the OFF mode, then back to ON (II), or the ON mode
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), or press the engine start/stop button to select the OFF mode
6. Disconnect the roof console 20P connector
7. Remove the center console panel (see «CENTER CONSOLE PANEL REMOVAL/INSTALLATION»(/acura/tl/iv-2008-2011/remont/gauges-instrument-panels/#consoles__center-console-panel-removalinstallation) )
8. Disconnect the HandsFreeLink control unit 28P connector (see step 2 ) under HANDSFREELINK CONTROL UNIT REMOVAL/INSTALLATION)
9. Turn the ignition switch to ON (II), or press the engine start/stop button to select the ON mode
10. 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 wires between the HandsFreeLink control unit and the HFL microphone Replace the affected shielded harness NO -Go to step 11
11. Turn the ignition switch to LOCK (0), or press the engine start/stop button to select the OFF mode
12. Check for continuity between HandsFreeLink control unit 28P connector terminal No 13 and roof console 20P connector terminal No 20 Is there continuity? YES -Substitute a known-good HandsFreeLink control unit (see «HFL SWITCH TEST»(/acura/tl/iv-2008-2011/remont/entertainment-systems/#hands-free-link-system) ), and recheck If the symptom goes away, replace the original HandsFreeLink control unit If the symptom does not go away, replace the HFL microphone (see «HFL MICROPHONE REMOVAL/INSTALLATION»(/acura/tl/iv-2008-2011/remont/entertainment-systems/#hands-free-link-system) ) 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 Short 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 239

Scheme 240

Scheme 241

Scheme 242

1. Connect the HDS to the DLC (see «GENERAL TROUBLESHOOTING INFORMATION»(/acura/tl/iv-2008-2011/remont/entertainment-systems/#hands-free-link-system) )
2. Clear the DTCs with the HDS
3. Turn the ignition switch to LOCK (0), or press the engine start/stop button to select the OFF mode, then back to ON (II), or the ON mode
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), or press the engine start/stop button to select the OFF mode
6. Disconnect the HFL-navigation microphone 7P connector
7. Remove the center console panel (see «CENTER CONSOLE PANEL REMOVAL/INSTALLATION»(/acura/tl/iv-2008-2011/remont/gauges-instrument-panels/#consoles__center-console-panel-removalinstallation) )
8. Disconnect the HandsFreeLink control unit 28P connector (see step 2 ) under HANDSFREELINK CONTROL UNIT REMOVAL/INSTALLATION)
9. Check for continuity between body ground and terminals No 13 and No 14 of the HandsFreeLink control unit 28P connector individually, then between terminals No 12 and No 13 Is there continuity? YES -There is a short in the wires between the HandsFreeLink control unit and the HFL-navigation microphone Replace the affected shielded harness NO -Go to step 10
10. Check for continuity between the terminals shown of the 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 11 NO -There is an open in the wire between the HandsFreeLink control unit and the HFL-navigation microphone Replace the affected shielded harness
11. Disconnect audio-navigation unit connector H (28P)
12. Check for continuity between HandsFreeLink control unit 28P connector terminals No 27 and No 28 and body ground individually Is there continuity? YES -There is a short to body ground in the wires 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 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 «HFL SWITCH TEST»(/acura/tl/iv-2008-2011/remont/entertainment-systems/#hands-free-link-system) ), and recheck If the symptom goes away, replace the original HandsFreeLink control unit If the symptom does not go away, replace the faulty audio-navigation unit (see «AUDIO-NAVIGATION UNIT REMOVAL/INSTALLATION»(/acura/tl/iv-2008-2011/remont/navigation-system/#navigation-system__audio-navigation-unit-removalinstallation) ) NO -There is an open in the wires between the HandsFreeLink control unit and the audio-navigation unit Replace the affected shielded harness

DTC B1776: Microphone Input/Output Short 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 243

Scheme 244

1. Connect the HDS to the DLC (see «GENERAL TROUBLESHOOTING INFORMATION»(/acura/tl/iv-2008-2011/remont/entertainment-systems/#hands-free-link-system) )
2. Clear the DTCs with the HDS
3. Turn the ignition switch to LOCK (0), or press the engine start/stop button to select the OFF mode, then back to ON (II), or the ON mode
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), or press the engine start/stop button to select the OFF mode
6. Disconnect the roof console 20P connector
7. Remove the center console panel (see «CENTER CONSOLE PANEL REMOVAL/INSTALLATION»(/acura/tl/iv-2008-2011/remont/gauges-instrument-panels/#consoles__center-console-panel-removalinstallation) )
8. Disconnect the HandsFreeLink control unit 28P connector (see step 2 under HANDSFREELINK CONTROL UNIT REMOVAL/INSTALLATION)
9. Check for continuity between body ground and terminals No 13 and No 14 of the HandsFreeLink control unit 28P connector individually, then between terminals No 12 and No 13 Is there continuity? YES -There is a short in the wires between the HandsFreeLink control unit and the HFL microphone Replace the affected shielded harness NO -Go to step 10
10. Check for continuity between the terminals No. 13 and 14 of the HandsFreeLink control unit 28P connector and the roof console 20P connector terminals No. 20 and 19 respectively. Is there continuity? YES -Substitute a known-good HandsFreeLink control unit (see «HFL SWITCH TEST»(/acura/tl/iv-2008-2011/remont/entertainment-systems/#hands-free-link-system) ), and recheck If the symptom goes away, replace the original HandsFreeLink control unit If the symptom does not go away, replace the faulty HFL microphone (see «HFL MICROPHONE REMOVAL/INSTALLATION»(/acura/tl/iv-2008-2011/remont/entertainment-systems/#hands-free-link-system) ) NO -There is an open in the wire between the HandsFreeLink control unit and the HFL microphone Replace the affected shielded harness

DTC B1779: HFL Switch or Voice Control Switch (PICK-UP/HANG-UP Buttons) Circuit Open/Short to Power (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 245

Scheme 246

Scheme 247

Scheme 248

Scheme 249

1. Connect the HDS to the DLC (see «GENERAL TROUBLESHOOTING INFORMATION»(/acura/tl/iv-2008-2011/remont/entertainment-systems/#hands-free-link-system) )
2. Clear the DTCs with the HDS
3. Turn the ignition switch to LOCK (0), or press the engine start/stop button to select the OFF mode, 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), or press the engine start/stop button to select the OFF mode
6. Do the HFL switch test (see «HFL SWITCH TEST»(/acura/tl/iv-2008-2011/remont/entertainment-systems/#hands-free-link-system) ) Is the switch OK? YES -Go to step 7 NO -Replace the audio remote, HFL-navigation voice control switch (see «STEERING WHEEL DISASSEMBLY/REASSEMBLY»(/acura/tl/iv-2008-2011/remont/electronic-steering/#power-steering-system) )
7. Remove the center console panel (see «CENTER CONSOLE PANEL REMOVAL/INSTALLATION»(/acura/tl/iv-2008-2011/remont/gauges-instrument-panels/#consoles__center-console-panel-removalinstallation) )
8. Disconnect the HandsFreeLink control unit 28P connector (see step 2 under HANDSFREELINK CONTROL UNIT REMOVAL/INSTALLATION)
9. Remove the audio remote, HFL-navigation voice control switch (see «STEERING WHEEL DISASSEMBLY/REASSEMBLY»(/acura/tl/iv-2008-2011/remont/electronic-steering/#power-steering-system) ) and disconnect the 12P connector, then connect the cable reel 20P connector
10. Turn the ignition switch to ON (II), or press the engine start/stop button to select the ON mode
11. Measure the voltage between audio remote, HFL-navigation voice control switch 12P connector terminal No 9 and body ground Is there voltage? YES -Go to step 15 NO -Go to step 12
12. Turn the ignition switch to LOCK (0), or press the engine start/stop button to select the OFF mode
13. Check for continuity between HandsFreeLink control unit 28P connector terminal No 2 and audio remote, HFL-navigation voice control switch 12P connector terminal No 9 Is there continuity? YES -Go to step 18 NO -Repair open in the GRN wire between the switch, the cable reel, and the HandsFreeLink control unit
14. Turn the ignition switch to LOCK (0), or press the engine start/stop button to select the OFF mode
15. Disconnect cable reel 20P connector
16. Turn the ignition switch to ON (II), or press the engine start/stop button to select the ON mode
17. Measure the voltage between HandsFreeLink control unit 28P connector terminal No 2 and body ground Is there voltage? YES -Repair short to power in the wire between the HandsFreeLink control unit and the cable reel NO -Replace the cable reel (see «CABLE REEL REPLACEMENT»(/acura/tl/iv-2008-2011/remont/airbag/#srs-supplemental-restraint-system) )
18. Disconnect audio-navigation unit connector A (24P)
19. Check for continuity between audio remote, HFL-navigation voice control switch 12P connector terminal No 11 and audio-navigation unit connector A (24P) terminal No 5 Is there continuity? YES -Replace the HandsFreeLink control unit (see «HFL SWITCH TEST»(/acura/tl/iv-2008-2011/remont/entertainment-systems/#hands-free-link-system) ) NO -Go to step 20
20. Substitute a known-good cable reel (see «CABLE REEL REPLACEMENT»(/acura/tl/iv-2008-2011/remont/airbag/#srs-supplemental-restraint-system) ), and check for continuity between audio remote, HFL-navigation voice control switch 12P connector terminal No 11 and audio-navigation unit connector A (24P) terminal No 5 Is there continuity? YES -Replace the original cable reel NO -Repair open in the wire between the audio remote, HFL voice control switch and the audio-navigation unit

DTC B1779: HFL Switch or Voice Control Switch (HFL TALK/HFL BACK Buttons) Circuit Open/Short to Power (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 250

Scheme 251

Scheme 252

Scheme 253

Scheme 254

1. Connect the HDS to the DLC (see «GENERAL TROUBLESHOOTING INFORMATION»(/acura/tl/iv-2008-2011/remont/entertainment-systems/#hands-free-link-system) )
2. Clear the DTCs with the HDS
3. Turn the ignition switch to LOCK (0), or press the engine start/stop button to select the OFF mode, 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), or press the engine start/stop button to select the OFF mode
6. Do the HFL switch test (see «HFL SWITCH TEST»(/acura/tl/iv-2008-2011/remont/entertainment-systems/#hands-free-link-system) ) Is the switch OK? YES -Go to step 7 NO -Replace the audio remote-HFL switch (see «STEERING WHEEL DISASSEMBLY/REASSEMBLY»(/acura/tl/iv-2008-2011/remont/electronic-steering/#power-steering-system) )
7. Remove the center console panel (see «CENTER CONSOLE PANEL REMOVAL/INSTALLATION»(/acura/tl/iv-2008-2011/remont/gauges-instrument-panels/#consoles__center-console-panel-removalinstallation) )
8. Disconnect the HandsFreeLink control unit 28P connector (see step 2 ) under HANDSFREELINK CONTROL UNIT REMOVAL/INSTALLATION)
9. Remove the audio remote-HFL switch (see «STEERING WHEEL DISASSEMBLY/REASSEMBLY»(/acura/tl/iv-2008-2011/remont/electronic-steering/#power-steering-system) ) and disconnect the 12P connector, then connect the cable reel 20P connector
10. Turn the ignition switch to ON (II), or press the engine start/stop button to select the ON mode
11. Measure the voltage between audio remote-HFL switch 12P connector terminal No 9 and body ground Is there voltage? YES -Go to step 14 NO -Go to step 12
12. Turn the ignition switch to LOCK (0), or press the engine start/stop button to select the OFF mode
13. Check for continuity between HandsFreeLink control unit 28P connector terminal No 2 and audio remote-HFL switch 12P connector terminal No 9 Is there continuity? YES -Go to step 18 NO -Repair open in the GRN wire between the switch, the cable reel, and the HandsFreeLink control unit
14. Turn the ignition switch to LOCK (0), or press the engine start/stop button to select the OFF mode
15. Disconnect cable reel 20P connector
16. Turn the ignition switch to ON (II) or press the engine start/stop button to select the ON mode
17. Measure the voltage between HandsFreeLink control unit 28P connector terminal No 2 and body ground Is there voltage? YES -Repair short to power in the wire between the HandsFreeLink control unit and the audio remote-HFL switch NO -Replace the cable reel (see «CABLE REEL REPLACEMENT»(/acura/tl/iv-2008-2011/remont/airbag/#srs-supplemental-restraint-system) )
18. Disconnect audio-navigation unit connector A (24P)
19. Check for continuity between audio remote-HFL switch 12P connector terminal No 11 and audio unit connector A (24P) terminal No 5 Is there continuity? YES -Replace the HandsFreeLink control unit (see «HFL SWITCH TEST»(/acura/tl/iv-2008-2011/remont/entertainment-systems/#hands-free-link-system) ) NO -Go to step 20
20. Substitute a known-good cable reel, and check for continuity between audio remote-HFL switch 12P connector terminal No 11 and audio unit connector A (24P) terminal No 5 Is there continuity? YES -Replace the original cable reel NO -Repair open in the wire between the audio remote-HFL switch and the audio unit

DTC B1780: HFL Switch (Pick-UP/Hang-UP Buttons) Circuit 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 255

1. Connect the HDS to the DLC
2. Clear the DTCs with the HDS (see «GENERAL TROUBLESHOOTING INFORMATION»(/acura/tl/iv-2008-2011/remont/entertainment-systems/#hands-free-link-system) )
3. Turn the ignition switch to LOCK (0), or press the engine start/stop button to select the OFF mode, 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), or press the engine start/stop button to select the OFF mode
6. Do the HFL switch test (see «HFL SWITCH TEST»(/acura/tl/iv-2008-2011/remont/entertainment-systems/#hands-free-link-system) ) Is the switch OK? YES -Go to step 7 NO -Replace the audio remote, HFL-navigation voice control switch or audio remote-HFL switch (see «STEERING WHEEL DISASSEMBLY/REASSEMBLY»(/acura/tl/iv-2008-2011/remont/electronic-steering/#power-steering-system) )
7. Remove the center console panel (see «CENTER CONSOLE PANEL REMOVAL/INSTALLATION»(/acura/tl/iv-2008-2011/remont/gauges-instrument-panels/#consoles__center-console-panel-removalinstallation) )
8. Disconnect the HandsFreeLink control unit 28P connector (see step 2 ) under HANDSFREELINK CONTROL UNIT REMOVAL/INSTALLATION)
9. Disconnect audio remote, HFL-navigation voice control switch or audio remote-HFL switch 12P connector
10. Check for continuity between HandsFreeLink control unit 28P connector terminal No 2 and body ground Is there continuity? YES -Repair short to body ground in the wire NO -Replace the HandsFreeLink control unit (see «HFL SWITCH TEST»(/acura/tl/iv-2008-2011/remont/entertainment-systems/#hands-free-link-system) )

DTC B1792: HandsFreeLink Control Unit Internal Error

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

1. Connect the HDS to the DLC (see «GENERAL TROUBLESHOOTING INFORMATION»(/acura/tl/iv-2008-2011/remont/entertainment-systems/#hands-free-link-system) )
2. Clear the DTCs with the HDS
3. Turn the ignition switch to LOCK (0) and then back to ON (II), or press the engine start/stop button to select the OFF mode and then the ON mode
4. Check for DTCs with the HDS Is DTC B1792 indicated? YES -Replace the HandsFreeLink control unit (see «HFL SWITCH TEST»(/acura/tl/iv-2008-2011/remont/entertainment-systems/#hands-free-link-system) ) NO -Intermittent failure, the system is OK at this time

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

1. Connect the HDS to the DLC
2. Clear the DTCs with the HDS (see «GENERAL TROUBLESHOOTING INFORMATION»(/acura/tl/iv-2008-2011/remont/entertainment-systems/#hands-free-link-system) )
3. Turn the ignition switch to LOCK (0) and then back to ON (II), or press the engine start/stop button to select the OFF mode and then the ON mode
4. Check for DTCs Are there any DTCs indicated? YES -Repair the indicated DTCs NO -Go to step 5
5. Turn the ignition switch to LOCK (0), or press the engine start/stop button to select the OFF mode
6. Substitute a known-good HandsFreeLink control unit (see «HFL SWITCH TEST»(/acura/tl/iv-2008-2011/remont/entertainment-systems/#hands-free-link-system) ), then turn the ignition switch to ON (II), or press the engine start/stop button to select the ON mode, and recheck the audio-navigation switch panel (with navigation) or audio-HVAC display unit (without navigation) Are the messages cleared? YES -Replace the original HandsFreeLink control unit (see «HFL SWITCH TEST»(/acura/tl/iv-2008-2011/remont/entertainment-systems/#hands-free-link-system) ) NO -Replace the audio-navigation switch panel (with navigation) (see «AUDIO-NAVIGATION SWITCH PANEL REMOVAL/INSTALLATION»(/acura/tl/iv-2008-2011/remont/entertainment-systems/#audio-system) ) or the audio-HVAC display unit (without navigation) (see «AUDIO-HVAC DISPLAY UNIT REMOVAL/INSTALLATION»(/acura/tl/iv-2008-2011/remont/entertainment-systems/#audio-system) )

The HFL system does not recognize all voice prompts

Note. Make sure the client's phone is compatible with Acura approved See www.acura.com/handsfreelink for more information

1. Connect the HDS to the DLC (see «GENERAL TROUBLESHOOTING INFORMATION»(/acura/tl/iv-2008-2011/remont/entertainment-systems/#hands-free-link-system) )
2. Clear the DTCs with the HDS.
3. Turn the ignition switch to LOCK (0) and then back to ON (II), or press the engine start/stop button to select the OFF mode and then the ON mode.
4. Check for DTCs Are there any DTCs indicated? YES -Repair the indicated DTCs NO -Go to step 5
5. Check if client's concern is duplicated Can the client's problem be duplicated? YES -Go to step 6 NO -The system is OK at this time Ask the client to demonstrate the concern
6. If the vehicle is equipped with navigation, 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 (see «VOICE CONTROL DOES NOT WORK/RESPOND»(/acura/tl/iv-2008-2011/remont/navigation-system/#navigation-system) )
7. Pair the client's phone to a known-good vehicle, and try to duplicate the concern Can you duplicate the concern? YES -Call the HFL support desk at 888-528-7876, and inquire if there are any known issues for the concern If there are no known issues, explain to the client this is a system characteristic and cannot be improved at this time NO -Substitute a known-good HFL-navigation microphone (see «HFL-NAVIGATION MICROPHONE REMOVAL/INSTALLATION»(/acura/tl/iv-2008-2011/remont/navigation-system/#navigation-system) ) If the concern goes away, replace the original HFL-navigation microphone If the concern is still present, substitute a known-good HandsFreeLink control unit (see «HFL SWITCH TEST»(/acura/tl/iv-2008-2011/remont/entertainment-systems/#hands-free-link-system) )

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

1. Connect the HDS to the DLC (see «GENERAL TROUBLESHOOTING INFORMATION»(/acura/tl/iv-2008-2011/remont/entertainment-systems/#hands-free-link-system) )
2. Turn the ignition switch to ON (II), or press the engine start/stop button to select the ON mode
3. From the Body Electrical menu, select HF LINK/TEL
4. Select Miscellaneous Tests, then select Pass code reset
5. Follow the HDS prompts to reset the pass code

Scheme 256

Scheme 257

Scheme 258

Scheme 259

Scheme 260

Scheme 261

Scheme 262

1. Turn the ignition switch to ON (II), or press the engine start/stop button to select the ON mode
2. Check that the audio system is operating normally and the speaker sound levels from different audio sources (AM, FM, XM, CD, Navigation, etc) Does the audio system work normally and is the audio output from the speaker normal when playing various audio sources? YES -Go to step 3 NO -Refer to audio system «SYMPTOM TROUBLESHOOTING»(/acura/tl/iv-2008-2011/remont/entertainment-systems/#audio-system)
3. Connect the HDS to the DLC
4. Clear the DTCs with the HDS
5. Turn the ignition switch to LOCK (0) and then back to ON (II), or press the engine start/stop button to select the OFF mode and then the ON mode.
6. Check for DTCs Are there any DTCs? YES -Repair the indicated DTCs NO -Go to step 7
7. Press the TALK button Does the audio system mute when HFL messages are being played? YES -Go to step 8 NO -Go to step 13
8. Turn the ignition switch to LOCK (0), or press the engine start/stop button to select the OFF mode
9. Disconnect audio-navigation unit connector B (24P) and the HandsFreeLink control unit 28P connector
10. 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 individually Is there continuity? YES -Go to step 11 NO -There is an open in the wire(s) between the HandsFreeLink control unit and the audio-navigation unit Replace the affected shielded harness
11. 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 12
12. Check for continuity between the terminals of audio-navigation unit connector B (24P) according to the table CONNECTOR TERMINAL CONTINUITY REFERENCE From terminal To terminals B5 (BRN) B16 (YEL), B17 (GRY) B16 (YEL) B17 (GRY) 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 -Substitute a known-good HandsFreeLink control unit (see «HFL SWITCH TEST»(/acura/tl/iv-2008-2011/remont/entertainment-systems/#hands-free-link-system) ), and recheck If the symptom goes away, replace the original HandsFreeLink control unit If the symptom does not go away, replace the audio-navigation unit (see «AUDIO-NAVIGATION UNIT REMOVAL/INSTALLATION»(/acura/tl/iv-2008-2011/remont/navigation-system/#navigation-system__audio-navigation-unit-removalinstallation) )
13. Press the PICK-UP button Does the audio-HVAC display (audio-navigation switch panel) show the HFL menu and the show HandsFreeLink when pressing the PICK-UP button? YES -Go to step 14 NO -Go to step 21
14. Turn the ignition switch to LOCK (0), or press the engine start/stop button to select the OFF mode
15. Remove the center console panel (see «CENTER CONSOLE PANEL REMOVAL/INSTALLATION»(/acura/tl/iv-2008-2011/remont/gauges-instrument-panels/#consoles__center-console-panel-removalinstallation) )
16. Disconnect the HandsFreeLink control unit 28P connector (see step 2 under HANDSFREELINK CONTROL UNIT REMOVAL/INSTALLATION), and the audio-navigation unit connector D (20P)
17. Check for continuity between HandsFreeLink control unit 28P connector terminal No. 3 and audio unit connector D (20P) terminal No. 3. Is there continuity? YES -Go to step 18 NO -Repair open in the wire between the HandsFreeLink control unit and the audio-navigation unit
18. Disconnect the HFL-navigation microphone 7P connector
19. Check for continuity between HandsFreeLink control unit 28P connector terminal No 3 and HFL-navigation microphone 7P connector terminal No. 5 Is there continuity? YES -Go to step 20 NO -Repair open in the wire HandsFreeLink control unit and HFL-navigation microphone
20. Check for continuity between body ground HandsFreeLink control unit 28P connector terminal No 3 Is there continuity? YES -Repair short to body ground in the wire between the HandsFreeLink control unit and the audio-navigation unit NO -Substitute a known-good HandsFreeLink control unit (see «HFL SWITCH TEST»(/acura/tl/iv-2008-2011/remont/entertainment-systems/#hands-free-link-system) ), and recheck If the symptom goes away, replace the original the HandsFreeLink control unit If the symptom does not go away, replace the audio-navigation unit (see «AUDIO-NAVIGATION UNIT REMOVAL/INSTALLATION»(/acura/tl/iv-2008-2011/remont/navigation-system/#navigation-system__audio-navigation-unit-removalinstallation) )
21. Turn the ignition switch to LOCK (0), or press the engine start/stop button to select the OFF mode
22. Remove the audio remote, HFL-navigation voice control switch (see «STEERING WHEEL DISASSEMBLY/REASSEMBLY»(/acura/tl/iv-2008-2011/remont/electronic-steering/#power-steering-system) ) and disconnect 12P connector, then connect the cable reel 20P connector
23. Disconnect the HandsFreeLink control unit 28P connector
24. Check for continuity between HandsFreeLink control unit 28P connector terminal No 2 and audio remote, HFL-navigation voice control switch 12P connector terminal No 9 Is there continuity? YES -Refer to the HFL switch test (see «HFL SWITCH TEST»(/acura/tl/iv-2008-2011/remont/entertainment-systems/#hands-free-link-system) ) NO -Repair open in the wire between the HandsFreeLink control unit and the audio remote, HFL-navigation voice control switch

Scheme 263

Scheme 264

Scheme 265

Scheme 266

Scheme 267

Scheme 268

1. Turn the ignition switch to ON (II), or press the engine start/stop button to select the ON mode
2. Check that the audio system is operating normally and the speaker sound levels from different audio sources (AM, FM, XM, CD, Navigation, etc) Does the audio system work normally and is the audio output from the speaker normal when playing various audio sources? YES -Go to step 3 NO -Refer to the audio system «SYMPTOM TROUBLESHOOTING»(/acura/tl/iv-2008-2011/remont/entertainment-systems/#audio-system)
3. Connect the HDS to the DLC
4. Clear the DTCs with the HDS
5. Turn the ignition switch to LOCK (0) and then back to ON (II), or press the engine start/stop button to select the OFF mode and then the ON mode.
6. Check for DTCs Are there any DTCs? YES -Repair the indicated DTCs NO -Go to step 7
7. Press the HFL TALK button. Does the audio system mute when HFL messages are being played? YES -Go to step 8 NO -Go to step 13
8. Turn the ignition switch to LOCK (0), or press the engine start/stop button to select the OFF mode
9. Disconnect audio unit connector D (20P) and the HandsFreeLink control unit 28P connector
10. Check for continuity between HandsFreeLink control unit 28P connector terminals No 11 and No 25 and audio unit connector D (20P) terminals No 9 and No 19 individually Is there continuity? YES -Go to step 11 NO -There is an open in the wire(s) between the HandsFreeLink control unit and the audio unit Replace the affected shielded harness
11. Check for continuity between body ground and audio unit connector D (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 12
12. Check for continuity between the terminals of audio unit connector D (20P) according to the table CONNECTOR TERMINAL CONTINUITY REFERENCE From terminal To terminals D9 (BRN) D10 (GRY), D19 (YEL) D10 (GRY) D19 (YEL) Is there continuity? YES -There is a short in the wire(s) between the HandsFreeLink control unit and the audio unit Replace the affected harness NO -Substitute a known-good HandsFreeLink control unit (see «HFL SWITCH TEST»(/acura/tl/iv-2008-2011/remont/entertainment-systems/#hands-free-link-system) ), and recheck If the symptom goes away, replace the original HandsFreeLink control unit If the symptom does not go away, replace the audio unit (see «AUDIO UNIT REMOVAL/INSTALLATION»(/acura/tl/iv-2008-2011/remont/entertainment-systems/#audio-system) )
13. Press the HFL TALK button Does the audio-HVAC display unit show the HFL menu and the HandsFreeLink when pressing the HFL TALK button? YES -Go to step 14 NO -Go to step 19
14. Turn the ignition switch to LOCK (0), or press the engine start/stop button to select the OFF mode
15. Remove the center console panel (see «CENTER CONSOLE PANEL REMOVAL/INSTALLATION»(/acura/tl/iv-2008-2011/remont/gauges-instrument-panels/#consoles__center-console-panel-removalinstallation) )
16. Disconnect the HandsFreeLink control unit 28P connector (see step 2 under HANDSFREELINK CONTROL UNIT REMOVAL/INSTALLATION), and the audio unit connector D (20P)
17. Check for continuity between HandsFreeLink control unit 28P connector terminal No 3 and audio unit connector D (20P) terminal No 20 Is there continuity? YES -Go to step 18 NO -Repair 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 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 «HFL SWITCH TEST»(/acura/tl/iv-2008-2011/remont/entertainment-systems/#hands-free-link-system) ), and recheck If the symptom goes away, replace the original the HandsFreeLink control unit If the symptom does not go away, replace the audio unit (see «AUDIO UNIT REMOVAL/INSTALLATION»(/acura/tl/iv-2008-2011/remont/entertainment-systems/#audio-system) )
19. Turn the ignition switch to LOCK (0), or press the engine start/stop button to select the OFF mode
20. Remove the audio remote-HFL switch (see «STEERING WHEEL REMOVAL»(/acura/tl/iv-2008-2011/remont/electronic-steering/#power-steering-system__steering-wheel-removal) ) and disconnect 12P connector, then connect the cable reel 20P connector
21. Remove the center console panel (see «CENTER CONSOLE PANEL REMOVAL/INSTALLATION»(/acura/tl/iv-2008-2011/remont/gauges-instrument-panels/#consoles__center-console-panel-removalinstallation) )
22. Disconnect the HandsFreeLink control unit 28P connector (see step 2 under HANDSFREELINK CONTROL UNIT REMOVAL/INSTALLATION)
23. Check for continuity between HandsFreeLink control unit 28P connector terminal No 2 and audio remote-HFL switch 12P connector terminal No 9 Is there continuity? YES -Refer to the HFL switch test (see «HFL SWITCH TEST»(/acura/tl/iv-2008-2011/remont/entertainment-systems/#hands-free-link-system) ) NO -Repair open in the wire between the HandsFreeLink control unit and the audio remote-HFL switch

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

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Scheme 274

1. Turn the ignition switch to ON (II), or press the engine start/stop button to select the ON mode
2. Turn on the audio-navigation unit, and check for sound in each mode (AM, FM, XM, and CD) Is the sound is normal? YES -Go to step 3 NO -Go to Sound Quality Diagnosis (see «SOUND QUALITY DIAGNOSIS»(/acura/tl/iv-2008-2011/remont/entertainment-systems/#audio-system__sound-quality-diagnosis) ) or no sound is heard from speaker(s) (see «NO SOUND IS HEARD FROM THE SPEAKER(S) (DISPLAY IS NORMAL) (WITH NAVIGATION)»(/acura/tl/iv-2008-2011/remont/entertainment-systems/#audio-system__no-sound-is-heard-from-the) )
3. Press the AUX button, and check if it changes to Bluetooth Audio source Does it 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/tl/iv-2008-2011/remont/navigation-system/#navigation-system__audio-navigation-unit-removalinstallation) ), and recheck If the symptom/indication goes away, replace the original audio-navigation unit
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»(/acura/tl/iv-2008-2011/remont/entertainment-systems/#hands-free-link-system__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 audio-navigation unit is OK at this time NO -Go to step 6
6. Connect the HDS to the DLC
7. Clear the DTCs with the HDS
8. Turn the ignition switch to LOCK (0) and then back to ON (II), or press the engine start/stop button to select the OFF mode and then the ON mode.
9. Check for HFL DTCs Are there any DTCs indicated? YES -Repair the indicated DTCs NO -Go to step 10
10. Turn on the audio-navigation unit, and check for XM radio sound Is the sound is normal? YES -Go to step 11 NO -Go to step 14
11. Turn the ignition switch to LOCK (0), or press the engine start/stop button to select the OFF mode
12. Disconnect audio-navigation unit connector C (14P) and the HandsFreeLink control unit 28P connector.
13. Check for continuity between audio unit connector C (14P) and HandsFreeLink control unit 28P connector according to the table CONNECTOR TERMINAL WIRE COLOR REFERENCE Audio-navigation unit connector HandsFreeLink control unit connector Wire color AUDIO R+ C5 9 GRN AUDIO R- C13 23 WHT AUDIO L+ C6 10 BLK AUDIO L- C14 24 RED Is there continuity? YES -Substitute a known-good HandsFreeLink control unit (see «HFL SWITCH TEST»(/acura/tl/iv-2008-2011/remont/entertainment-systems/#hands-free-link-system) ), and recheck If the symptom/indication goes away, replace the original HandsFreeLink control unit NO -There is an open in the wire(s) between the audio-navigation unit and the HandsFreeLink control unit Replace the affected shielded harness
14. Turn the ignition switch to LOCK (0), or press the engine start/stop button to select the OFF mode
15. Disconnect these items. Audio-navigation unit connector C (14P) AcuraLink control unit (XM receiver) connector A (32P) (USA models) XM receiver connector A (14P) (Canada models) HandsFreeLink control unit 28P connector
16. Check for continuity between the HandsFreeLink control unit 28P connector and body ground according to the table CONNECTOR TERMINAL WIRE COLOR REFERENCE HandsFreeLink control unit connector Wire color AUDIO R+ 9 GRN AUDIO R- 23 WHT AUDIO L+ 10 BLK AUDIO L- 24 RED Is there continuity? YES -There is a short to body ground in the wire(s) between the audio-navigation unit, then AcuraLink control unit (XM receiver) or XM receiver, and the HandsFreeLink control unit. Replace the affected shielded harness NO -Go to step 17
17. Check for continuity between audio-navigation unit connector C (14P) and the HandsFreeLink control unit 28P connector according to the table CONNECTOR TERMINAL WIRE COLOR REFERENCE Audio-navigation unit connector HandsFreeLink control unit connector Wire color AUDIO R+ C5 9 GRN AUDIO R- C13 23 WHT AUDIO L+ C6 10 BLK AUDIO L- C14 24 RED Is there continuity? YES -Go to step 18 NO -There is an open in the wire(s) between the audio-navigation unit and the HandsFreeLink control unit Replace the affected shielded harness
18. Check for continuity between the terminals of the HandsFreeLink control unit 28P connector according to the table CONNECTOR TERMINAL REFERENCE From terminal To terminals 22 (GRY) 9 (GRN), 23 (WHT), 10 (BLK), 24 (RED) Is there continuity? 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 19
19. Reconnect the audio-navigation unit connector C (14P) and the HandsFreeLink control unit 28P connector
20. Turn the ignition switch to ON (II), or press the engine start/stop button to select the ON mode
21. Check if the Bluetooth audio device can be played Does the Bluetooth audio play? YES -Internal malfunction in unit where a connector for either the AcuraLink control unit (XM receiver) (USA models) or the XM receiver (Canada models) is connected NO -Go to step 22
22. Turn the ignition switch to LOCK (0), or press the engine start/stop button to select the OFF mode
23. Remove the center console panel (see «CENTER CONSOLE PANEL REMOVAL/INSTALLATION»(/acura/tl/iv-2008-2011/remont/gauges-instrument-panels/#consoles__center-console-panel-removalinstallation) )
24. Disconnect the HandsFreeLink control unit 28P connector (see step 2 under HANDSFREELINK CONTROL UNIT REMOVAL/INSTALLATION)
25. Reconnect AcuraLink control unit connector A (32P) (USA models) or XM receiver connector A (14P) (Canada models)
26. Turn the ignition switch to ON (II), or press the engine start/stop button to select the ON mode
27. Check the operation of the reconnected unit Is the system normal? YES -Substitute a known-good HandsFreeLink control unit (see «HFL SWITCH TEST»(/acura/tl/iv-2008-2011/remont/entertainment-systems/#hands-free-link-system) ), and recheck If the symptom/indication goes away, replace the original HandsFreeLink control unit NO -Substitute a known-good audio-navigation unit (including the HDD) (see «AUDIO-NAVIGATION UNIT REMOVAL/INSTALLATION»(/acura/tl/iv-2008-2011/remont/navigation-system/#navigation-system__audio-navigation-unit-removalinstallation) ), and recheck If the symptom/indication goes away, replace the original audio-navigation unit

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

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Scheme 280

1. Turn the ignition switch to ON (II), or press the engine start/stop button to select the ON mode
2. Turn on the audio unit, and check for sound in each mode (AM, FM, XM, and CD) Is the sound is normal? YES -Go to step 3 NO -Go to Sound Quality Diagnosis (see «SOUND QUALITY DIAGNOSIS»(/acura/tl/iv-2008-2011/remont/entertainment-systems/#audio-system__sound-quality-diagnosis) ) or no sound is heard from speaker(s) (see «NO SOUND IS HEARD FROM THE SPEAKER(S) (DISPLAY IS NORMAL) (WITHOUT NAVIGATION)»(/acura/tl/iv-2008-2011/remont/entertainment-systems/#audio-system__no-sound-is-heard-from-the) )
3. Press the AUX button, and check if it changes to Bluetooth Audio source Does it change to Bluetooth Audio source? YES -Go to step 4 NO -Substitute a known-good audio unit (see «AUDIO UNIT REMOVAL/INSTALLATION»(/acura/tl/iv-2008-2011/remont/entertainment-systems/#audio-system) ), and recheck If the symptom/indication goes away, replace the original audio unit
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»(/acura/tl/iv-2008-2011/remont/entertainment-systems/#hands-free-link-system__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 audio unit is OK at this time NO -Go to step 6
6. Connect the HDS to the DLC
7. Clear the DTCs with the HDS
8. Turn the ignition switch to LOCK (0) and then back to ON (II), or press the engine start/stop button to select the OFF mode and then the ON mode.
9. Check for DTCs Are there any DTCs indicated? YES -Repair the indicated DTCs NO -Go to step 10
10. Turn on the audio unit, and check for sound in each mode (XM and USB) Is the sound is normal? YES -Go to step 11 NO -Go to step 14
11. Turn the ignition switch to LOCK (0), or press the engine start/stop button to select the OFF mode
12. Disconnect audio unit connector C (14P) and the HandsFreeLink control unit 28P connector
13. Check for continuity between audio unit connector C(14P) and HandsFreeLink control unit 28P connector according to the table CONNECTOR TERMINAL WIRE COLOR REFERENCE Audio unit connector HandsFreeLink control unit connector Wire color AUDIO R+ C5 9 GRN AUDIO R- C13 23 WHT AUDIO L+ C6 10 BLK AUDIO L- C14 24 RED Is there continuity? YES -Substitute a known-good HandsFreeLink control unit (see «HFL SWITCH TEST»(/acura/tl/iv-2008-2011/remont/entertainment-systems/#hands-free-link-system) ), and recheck If the symptom/indication goes away, replace the original HandsFreeLink control unit NO -There is an open in the wire(s) between the audio unit and the HandsFreeLink control unit Replace the affected shielded harness
14. Turn the ignition switch to LOCK (0), or press the engine start/stop button to select the OFF mode
15. Disconnect these items Audio unit connector C(14P) XM receiver connector A (14P) USB adapter unit connector A (14P) HandsFreeLink control unit 28P connector
16. Check for continuity between the HandsFreeLink control unit 28P connector and body ground according to the table CONNECTOR TERMINAL WIRE COLOR REFERENCE HandsFreeLink control unit connector Wire color AUDIO R+ 9 GRN AUDIO R- 23 WHT AUDIO L+ 10 BLK AUDIO L- 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 17
17. Check for continuity between audio unit connector C (14P) and the HandsFreeLink control unit 28P connector according to the table CONNECTOR TERMINAL WIRE COLOR REFERENCE Audio unit connector HandsFreeLink control unit connector Wire color AUDIO R+ C5 9 GRN AUDIO R- C13 23 WHT AUDIO L+ C6 10 BLK AUDIO L- C14 24 RED Is there continuity? YES -Go to step 18 NO -There is an open in the wire(s) between the audio unit and the HandsFreeLink control unit Replace the affected shielded harness
18. Check for continuity between the terminals of the HandsFreeLink control unit 28P connector according to the table CONNECTOR TERMINAL CONTINUITY REFERENCE From terminal To terminals 22 (GRY) 9 (GRN), 23 (WHT), 10 (BLK), 24 (RED) Is there continuity? 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 19
19. Reconnect the audio unit connector C(14P) and the HandsFreeLink control unit 28P connector
20. Turn the ignition switch to ON (II), or press the engine start/stop button to select the ON mode
21. Check if the Bluetooth audio device can be played Does the Bluetooth audio play? YES -Internal malfunction in unit where a connector for either the XM receiver or the USB adapter unit is connected NO -Go to step 22
22. Turn the ignition switch to LOCK (0), or press the engine start/stop button to select the OFF mode
23. Remove the center console panel (see «CENTER CONSOLE PANEL REMOVAL/INSTALLATION»(/acura/tl/iv-2008-2011/remont/gauges-instrument-panels/#consoles__center-console-panel-removalinstallation) )
24. Disconnect the HandsFreeLink control unit 28P connector (see step 2 under HANDSFREELINK CONTROL UNIT REMOVAL/INSTALLATION)
25. Reconnect XM receiver connector A(14P) and the USB adapter unit connector A (14P)
26. Turn the ignition switch to ON (II), or press the engine start/stop button to select the ON mode
27. Check the operation of the reconnected unit Is the system normal? YES -Substitute a known-good HandsFreeLink control unit (see «HFL SWITCH TEST»(/acura/tl/iv-2008-2011/remont/entertainment-systems/#hands-free-link-system) ), and recheck If the symptom/indication goes away, replace the original HandsFreeLink control unit NO -Substitute a known-good audio unit (see «AUDIO UNIT REMOVAL/INSTALLATION»(/acura/tl/iv-2008-2011/remont/entertainment-systems/#audio-system) ), and recheck If the symptom/indication goes away, replace the original audio unit

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

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Scheme 286

1. Turn the ignition switch to ON (II), or press the engine start/stop button to select the ON mode
2. Turn on the audio unit, and press HDD/AUX button to select Bluetooth audio source Does it 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/tl/iv-2008-2011/remont/navigation-system/#navigation-system__audio-navigation-unit-removalinstallation) ), and recheck If the symptom/indication goes away, replace the original audio-navigation unit
3. Check if the Bluetooth audio device can be played Does the Bluetooth audio play? YES -Intermittent failure, the audio-navigation unit is OK at this time NO -Go to step 4
4. Check online at www.acura.com/handsfreelink or call the HFL support desk at 888-528-7876 to make sure the cell phone is compatible with the HFL system and that there are no known issues
5. Pair and check the Bluetooth audio device function on a known-good vehicle equipped with Bluetooth audio Is the Bluetooth device normal? YES -Go to step 6 NO -Defective Bluetooth device or is not compatible
6. Connect the HDS to the DLC
7. Clear the DTCs with the HDS
8. Turn the ignition switch to LOCK (0) and then back to ON (II), or press the engine start/stop button to select the OFF mode and then the ON mode.
9. Check for DTCs Are there any DTCs indicated? YES -Repair the indicated DTCs NO -Go to step 10
10. Check for the navigation system hard error codes (see «HOW TO CHECK ERROR HISTORY»(/acura/tl/iv-2008-2011/remont/navigation-system/#navigation-system__how-to-check-error-history) ) Are there any DTCs related to the Display or XM systems? YES -Go to step 11 NO -Go to step 14
11. Turn the ignition switch to LOCK (0), or press the engine start/stop button to select the OFF mode
12. Disconnect audio-navigation unit connector C (14P) and the HandsFreeLink control unit 28P connector
13. Check for continuity between audio-navigation unit connector C(14P) and the HandsFreeLink control unit 28P connector according to the table CONNECTOR TERMINAL WIRE COLOR REFERENCE Audio-navigation unit connector HandsFreeLink control unit connector Wire color GA-NET BUS+ C9 4 PNK GA-NET BUS- C10 5 BLU Is there continuity? YES -Substitute a known-good HandsFreeLink control unit (see «HFL SWITCH TEST»(/acura/tl/iv-2008-2011/remont/entertainment-systems/#hands-free-link-system) ), and recheck If the symptom/indication goes away, replace the original HandsFreeLink control unit NO -There is an open in the wire(s) between the audio-navigation unit and the HandsFreeLink control unit Replace the affected shielded harness
14. Turn the ignition switch to LOCK (0), or press the engine start/stop button to select the OFF mode
15. Disconnect these items Audio-navigation unit connector C (14P) AcuraLink control unit (XM receiver) connector A (32P) (USA models) XM receiver connector A (14P) (Canada models) Navigation display unit 32P connector HandsFreeLink control unit 28P connector
16. Check for continuity between the HandsFreeLink control unit 28P connector and body ground according to the table CONNECTOR TERMINAL WIRE COLOR REFERENCE HandsFreeLink control unit connector Wire color GA-NET BUS+ 4 PNK GA-NET BUS- 5 BLU Is there continuity? YES -There is a short to body ground in the wire(s) between the audio-navigation unit, the AcuraLink control unit (XM receiver) or XM receiver, the navigation display unit, and the HandsFreeLink control unit Replace the affected shielded harness NO -Go to step 17
17. Check for continuity between audio-navigation unit connector C(14P) and the HandsFreeLink control unit 28P connector according to the table CONNECTOR TERMINAL WIRE COLOR REFERENCE Audio-navigation unit connector HandsFreeLink control unit connector Wire color GA-NET BUS+ C9 4 PNK GA-NET BUS- C10 5 BLU Is there continuity? YES -Go to step 18 NO -There is an open in the wire(s) between the audio-navigation unit and the HandsFreeLink control unit Replace the affected shielded harness
18. Check for continuity between the terminals of the HandsFreeLink control unit 28P connector according to the table CONNECTOR TERMINAL CONTINUITY REFERENCE From terminal To terminals 19 (GRY) 4 (PNK),5 (BLU) Is there continuity? 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 19
19. Reconnect the audio-navigation unit connector C (14P) and the HandsFreeLink control unit 28P connector
20. Turn the ignition switch to ON (II), or press the engine start/stop button to select the ON mode
21. Check if the Bluetooth audio device can be played Does the Bluetooth audio play? YES -Intermittent failure, the system is OK at this time Check for loose or poor connections at the AcuraLink control unit (XM receiver), the XM receiver, or the navigation display unit NO -Go to step 22
22. Turn the ignition switch to LOCK (0), or press the engine start/stop button to select the OFF mode
23. Remove the center console panel (see «CENTER CONSOLE PANEL REMOVAL/INSTALLATION»(/acura/tl/iv-2008-2011/remont/gauges-instrument-panels/#consoles__center-console-panel-removalinstallation) )
24. Disconnect the HandsFreeLink control unit 28P connector (see step 2 under HANDSFREELINK CONTROL UNIT REMOVAL/INSTALLATION)
25. Reconnect AcuraLink control unit (XM receiver) connector A (32P) or XM receiver A (14P), the navigation display unit 32P connector, and the HandsFreeLink control unit 28P connector
26. Turn the ignition switch to ON (II), or press the engine start/stop button to select the ON mode
27. Check the operation of the reconnected unit Is the system normal? YES -Substitute a known-good HandsFreeLink control unit (see «HFL SWITCH TEST»(/acura/tl/iv-2008-2011/remont/entertainment-systems/#hands-free-link-system) ), and recheck If the symptom/indication goes away, replace the original HandsFreeLink control unit NO -Substitute a known-good audio-navigation unit (including the HDD) (see «AUDIO-NAVIGATION UNIT REMOVAL/INSTALLATION»(/acura/tl/iv-2008-2011/remont/navigation-system/#navigation-system__audio-navigation-unit-removalinstallation) ), and recheck If the symptom/indication goes away, replace the original audio-navigation unit

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

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Scheme 292

1. Turn the ignition switch to ON (II), or press the engine start/stop button to select the ON mode
2. Turn on the audio unit, and press AUX button to select Bluetooth audio source Does it change to Bluetooth Audio source? YES -Go to step 3 NO -Substitute a known-good audio unit (see «AUDIO UNIT REMOVAL/INSTALLATION»(/acura/tl/iv-2008-2011/remont/entertainment-systems/#audio-system) ) and recheck If the symptom/indication goes away, replace the original audio unit
3. Check if the Bluetooth audio device can be played Does the Bluetooth audio play? YES -Intermittent failure, the audio unit is OK at this time NO -Go to step 4
4. Check online at www.acura.com/handsfreelink or call the HFL support desk at 888-528-7876 to make sure the cell phone is compatible with the HFL system and that there are no known issues
5. Register and check the Bluetooth audio device function on a known-good vehicle equipped with Bluetooth audio Is the Bluetooth device normal? YES -Go to step 6 NO -Defective Bluetooth device
6. Connect the HDS to the DLC Check for HFL DTCs
7. Clear the DTCs with the HDS
8. Turn the ignition switch to LOCK (0) and then back to ON (II), or press the engine start/stop button to select the OFF mode and then the ON mode.
9. Check for DTCs Are there any DTCs indicated? YES -Repair the indicated DTCs NO -Go to step 10
10. Turn on the audio unit, and check for sound in each mode (XM and USB) Is the sound is normal? YES -Go to step 11 NO -Go to step 14
11. Turn the ignition switch to LOCK (0), or press the engine start/stop button to select the OFF mode
12. Disconnect audio unit connector C (14P) and the HandsFreeLink control unit 28P connector
13. Check for continuity between audio unit connector C (14P) and the HandsFreeLink control unit 28P connector according to the table CONNECTOR TERMINAL WIRE COLOR REFERENCE Audio unit connector HandsFreeLink control unit connector Wire color GA-NET BUS+ C9 4 PNK GA-NET BUS- C10 5 BLU Is there continuity? YES -Substitute a known-good HandsFreeLink control unit (see «HFL SWITCH TEST»(/acura/tl/iv-2008-2011/remont/entertainment-systems/#hands-free-link-system) ), and recheck If the symptom/indication goes away, replace the original HandsFreeLink control unit NO -There is an open in the wire{s) between the audio unit and the HandsFreeLink control unit Replace the affected shielded harness
14. Turn the ignition switch to LOCK (0), or press the engine start/stop button to select the OFF mode
15. Disconnect these items Audio unit connector C (14P) XM receiver connector A (14P) USB adapter unit connector A (14P) HandsFreeLink control unit 28P connector
16. Check for continuity between the HandsFreeLink control unit 28P connector and body ground according to the table CONNECTOR TERMINAL WIRE COLOR REFERENCE HandsFreeLink control unit connector Wire color GA-NET BUS+ 4 PNK GA-NET BUS- 5 BLU Is there continuity? YES -There is a short to body ground in the wire(s) between the audio unit, the XM receiver, the USB adapter unit, and the HandsFreeLink control unit Replace the affected shielded harness NO -Go to step 17
17. Check for continuity between audio unit connector C(14P) and the HandsFreeLink control unit 28P connector according to the table CONNECTOR TERMINAL WIRE COLOR REFERENCE Audio unit connector HandsFreeLink control unit connector Wire color GA-NET BUS+ C9 4 PNK GA-NET BUS- C10 5 BLU Is there continuity? YES -Go to step 18 NO -There is an open in the wire(s) between the audio unit and the HandsFreeLink control unit Replace the affected shielded harness
18. Check for continuity between the terminals of the HandsFreeLink control unit 28P connector according to the table CONNECTOR TERMINAL CONTINUITY REFERENCE From terminal To terminals 19 (GRY) 4 (PNK), 5 (BLU) Is there continuity? 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 19
19. Reconnect the audio unit connector C (14P) and the HandsFreeLink control unit 28P connector
20. Turn the ignition switch to ON (II), or press the engine start/stop button to select the ON mode
21. Check if the Bluetooth audio device can be played Does the Bluetooth audio play? YES -Intermittent failure, the system is OK at this time Check for loose or poor connections at the XM receiver or the USB adapter unit NO -Go to step 22
22. Turn the ignition switch to LOCK (0), or press the engine start/stop button to select the OFF mode
23. Remove the center console panel (see «CENTER CONSOLE PANEL REMOVAL/INSTALLATION»(/acura/tl/iv-2008-2011/remont/gauges-instrument-panels/#consoles__center-console-panel-removalinstallation) )
24. Disconnect the HandsFreeLink control unit 28P connector (see step 2 under HANDSFREELINK CONTROL UNIT REMOVAL/INSTALLATION)
25. Reconnect XM receiver A (14P) and USB adapter unit connector A (14P)
26. Turn the ignition switch to ON (II), or press the engine start/stop button to select the ON mode
27. Check the operation of the reconnected unit Is the system normal? YES -Substitute a known-good HandsFreeLink control unit (see «HFL SWITCH TEST»(/acura/tl/iv-2008-2011/remont/entertainment-systems/#hands-free-link-system) ), and recheck If the symptom/indication goes away, replace the original HandsFreeLink control unit NO -Substitute a known-good audio unit (see «AUDIO UNIT REMOVAL/INSTALLATION»(/acura/tl/iv-2008-2011/remont/entertainment-systems/#audio-system) ), and recheck If the symptom/indication goes away, replace the original audio unit

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), or press the engine start/stop button to select the ON mode
2. Press the HFL TALK button Does beep sound? YES -Go to step 3 NO -Go to step 6
3. Check online at www.acura.com/handsfreelink or call the HFL support desk at 888-528-7876 to make sure the Bluetooth phone is compatible with the HFL system and that there are no know 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
7. Clear the DTCs with the HDS
8. Turn the ignition switch to LOCK (0) and then back to ON (II), or press the engine start/stop button to select the OFF mode and then the ON mode.
9. Check for DTCs Is there any DTCs indicated? YES -Repair the indicated DTCs NO -Go to Voice control does not work/respond (see «VOICE CONTROL DOES NOT WORK/RESPOND»(/acura/tl/iv-2008-2011/remont/navigation-system/#navigation-system) ) or HFL switch test (see «HFL SWITCH TEST»(/acura/tl/iv-2008-2011/remont/entertainment-systems/#hands-free-link-system) )

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 support desk at 888-528-7876 to make sure the Bluetooth phone is compatible with the HFL system and that there are no know issues

Scheme 293

Scheme 294

Scheme 295

Scheme 296

1. Turn on the audio-navigation unit, and check for sound in each mode (AM, FM, XM, and CD) Does the symptom occur? YES -Substitute a known-good audio-navigation unit (including the HDD) (see «AUDIO-NAVIGATION UNIT REMOVAL/INSTALLATION»(/acura/tl/iv-2008-2011/remont/navigation-system/#navigation-system__audio-navigation-unit-removalinstallation) ), and recheck If the symptom/indication goes away, replace the original audio-navigation unit NO -Go to step 2
2. Check the communication abnormality of connected device Does the symptom occur in a specific place or under an specific condition? YES -Operation is normal Bluetooth audio is OK at this time Influence or electric wave interference NO -Go to step 3
3. If you have the client's Bluetooth phone, go to step 4. 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 5
4. 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 5 NO -The client's Bluetooth phone is defective or not compatible
5. Turn the ignition switch to LOCK (0) or press the engine start/stop button to select the OFF mode.
6. Check the connections at the HandsFreeLink control unit 28P connector terminals Are the connections and terminals connected properly? YES -Go to step 7 NO -Repair the connection, and recheck
7. Remove the center console panel (see «CENTER CONSOLE PANEL REMOVAL/INSTALLATION»(/acura/tl/iv-2008-2011/remont/gauges-instrument-panels/#consoles__center-console-panel-removalinstallation) )
8. Disconnect the HandsFreeLink control unit 28P connector (see step 2 under HANDSFREELINK CONTROL UNIT REMOVAL/INSTALLATION), and the audio-navigation unit connector C (14P)
9. Check for continuity between the HandsFreeLink control unit 28P connector and body ground according to the table CONNECTOR TERMINAL WIRE COLOR REFERENCE HandsFreeLink control unit connector Wire color AUDIO R+ 9 GRN AUDIO R- 23 WHT AUDIO L+ 10 BLK AUDIO L- 24 RED Is there continuity? YES -There is a short to body ground in the wires 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 audio-navigation unit connector C (14P) and the HandsFreeLink control unit 28P connector according to the table CONNECTOR TERMINAL WIRE COLOR REFERENCE Audio-navigation unit connector HandsFreeLink control unit connector Wire color AUDIO R+ C5 9 GRN AUDIO R- C13 23 WHT AUDIO L+ C6 10 BLK AUDIO L- C14 24 RED Is there continuity? YES -Go to step 11 NO -There is an open in the wire(s) between the audio-navigation unit and the HandsFreeLink control unit Replace the affected shielded harness
11. Check for continuity between the terminals of the HandsFreeLink control unit 28P connector according to the table CONNECTOR TERMINAL CONTINUITY REFERENCE From terminal To terminals 22 (GRY) 9 (GRN), 23 (WHT), 10 (BLK),24 (RED) Is there continuity? YES -There is a short in the wire(s) between the audio-navigation unit and the HandsFreeLink control unit Replace the affected shield harness NO -Substitute a known-good HandsFreeLink control unit (see «HFL SWITCH TEST»(/acura/tl/iv-2008-2011/remont/entertainment-systems/#hands-free-link-system) ), and recheck If the symptom/indication goes away, replace the original HandsFreeLink control unit

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 support desk at 888-528-7876 to make sure the Bluetooth phone is compatible with the HFL system and that there are no know issues

Scheme 297

Scheme 298

Scheme 299

Scheme 300

1. Turn on the audio unit, and check for sound in each mode (AM, FM, XM, and CD) Does the symptom occur? YES -Substitute a known-good audio unit (see «AUDIO UNIT REMOVAL/INSTALLATION»(/acura/tl/iv-2008-2011/remont/entertainment-systems/#audio-system) ), and recheck If the symptom/indication goes away, replace the original audio unit NO -Go to step 2
2. Check the communication abnormality of connected device Does the symptom occur in a specific place or under an specific condition? YES -Operation is normal Bluetooth audio is OK at this time Possible or electric wave interference NO -Go to step 3
3. If you have the client's Bluetooth phone, go to step 4. 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 5
4. 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 5 NO -The client's Bluetooth phone is defective or not compatible
5. Turn the ignition switch to LOCK (0) or press the engine start/stop button to select the OFF mode.
6. Check the connections at the HandsFreeLink control unit 28P connector terminals Are the connections and terminals connected properly? YES -Go to step 7 NO -Repair the connection, and recheck
7. Remove the center console panel (see «CENTER CONSOLE PANEL REMOVAL/INSTALLATION»(/acura/tl/iv-2008-2011/remont/gauges-instrument-panels/#consoles__center-console-panel-removalinstallation) )
8. Disconnect the HandsFreeLink control unit 28P connector (see step 2 under HANDSFREELINK CONTROL UNIT REMOVAL/INSTALLATION), and the audio unit connector C (14P)
9. Check for continuity between the HandsFreeLink control unit 28P connector and body ground according to the table CONNECTOR TERMINAL WIRE COLOR REFERENCE HandsFreeLink control unit connector Wire color AUDIO R+ 9 GRN AUDIO R- 23 WHT AUDIO L+ 10 BLK AUDIO L- 24 RED Is there continuity? YES -There is a short to body ground in the wires between the audio unit and the HandsFreeLink control unit Replace the affected shielded harness NO -Go to step 10
10. Check for continuity between audio unit connector C (14P) and the HandsFreeLink control unit 28P connector according to the table CONNECTOR TERMINAL WIRE COLOR REFERENCE Audio unit connector HandsFreeLink control unit connector Wire color AUDIO R+ C5 9 GRN AUDIO R- C13 23 WHT AUDIO L+ C6 10 BLK AUDIO L- C14 24 RED Is there continuity? YES -Go to step 11 NO -There is an open in the wire(s) between the audio unit and the HandsFreeLink control unit Replace the affected shielded harness
11. Check for continuity between the terminals of the HandsFreeLink control unit 28P connector according to the table CONNECTOR TERMINAL CONTINUITY REFERENCE From terminal To terminals 22 (GRY) 9 (GRN), 23 (WHT), 10 (BLK), 24 (RED) Is there continuity? YES -There is a short in the wire(s) between the audio unit and the HandsFreeLink control unit Replace the affected shield harness NO -Substitute a known-good HandsFreeLink control unit (see «HFL SWITCH TEST»(/acura/tl/iv-2008-2011/remont/entertainment-systems/#hands-free-link-system) ), and recheck If the symptom/indication goes away, replace the original HandsFreeLink control unit

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 support desk at 888-528-7876 to make sure the Bluetooth phone is compatible with the HFL system and that there are no know issues

1. Turn the ignition switch to ON (II), or press the engine start/stop button to select the ON mode
2. Check if any system(s) other than Bluetooth audio system is displayed Does the other system display normally? YES -Go to step 3 NO -Replace the navigation display unit (see «NAVIGATION DISPLAY UNIT REMOVAL/INSTALLATION»(/acura/tl/iv-2008-2011/remont/navigation-system/#navigation-system__navigation-display-unit-removalinstallation) )
3. Press HDD/USB button or AUX button to select Bluetooth Audio source Does it change to Bluetooth Audio source? YES -Go to step 4 NO -Go to Bluetooth audio does not work With navigation (see «BLUETOOTH AUDIO DOES NOT WORK (WITH NAVIGATION)»(/acura/tl/iv-2008-2011/remont/entertainment-systems/#hands-free-link-system__bluetooth-audio-does-not-work-with) ) Without navigation (see «BLUETOOTH AUDIO DOES NOT WORK (WITHOUT NAVIGATION)»(/acura/tl/iv-2008-2011/remont/entertainment-systems/#hands-free-link-system__bluetooth-audio-does-not-work-without) )
4. Check if the audio system functions normally Is the system normal? YES -Go to step 5 NO -Go to No sound when Bluetooth audio is used With navigation (see «NO SOUND WHEN BLUETOOTH AUDIO IS USED (WITH NAVIGATION)»(/acura/tl/iv-2008-2011/remont/entertainment-systems/#hands-free-link-system__no-sound-when-bluetooth-audio-is) ) Without navigation (see «NO SOUND WHEN BLUETOOTH AUDIO IS USED (WITHOUT NAVIGATION)»(/acura/tl/iv-2008-2011/remont/entertainment-systems/#hands-free-link-system__no-sound-when-bluetooth-audio-is) )
5. If you have the client's Bluetooth phone, go to step 6. Otherwise, pair a know-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 «HFL SWITCH TEST»(/acura/tl/iv-2008-2011/remont/entertainment-systems/#hands-free-link-system) ), and recheck If the symptom/indication goes away, replace the original HandsFreeLink control unit
6. 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 «HFL SWITCH TEST»(/acura/tl/iv-2008-2011/remont/entertainment-systems/#hands-free-link-system) ), and recheck If the symptom/indication goes away, replace the original HandsFreeLink control unit 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 Some mobile phones do not support the function Check online at www.acura.com/handsfreelink or call the HFL support desk at 888-528-7876 to make sure the Bluetooth phone is compatible with the HFL system and that there are no know issues

1. Turn the ignition switch to ON (II), or press the engine start/stop button to select the ON mode
2. Turn on the audio-navigation unit, and check that MENU, SKIP, and TITLE button function normally with the audio-navigation unit Is the audio-navigation unit operation OK? YES -Go to step 3 NO -Substitute a known-good audio-navigation unit (including the HDD) (see «AUDIO-NAVIGATION UNIT REMOVAL/INSTALLATION»(/acura/tl/iv-2008-2011/remont/navigation-system/#navigation-system__audio-navigation-unit-removalinstallation) ), and recheck If the symptom/indication goes away, replace the original audio-navigation unit
3. Check that music plays with the Bluetooth device Is the system normal? YES -Go to step 4 NO -Go to symptom troubleshooting for No sound when Bluetooth audio is used (see «NO SOUND WHEN BLUETOOTH AUDIO IS USED (WITH NAVIGATION)»(/acura/tl/iv-2008-2011/remont/entertainment-systems/#hands-free-link-system__no-sound-when-bluetooth-audio-is) )
4. If you have the client's Bluetooth phone, go to step 5. Otherwise, pair a know-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 «HFL SWITCH TEST»(/acura/tl/iv-2008-2011/remont/entertainment-systems/#hands-free-link-system) ), and recheck If the symptom/indication goes away, replace the original HandsFreeLink control unit
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 «HFL SWITCH TEST»(/acura/tl/iv-2008-2011/remont/entertainment-systems/#hands-free-link-system) ), and recheck If the symptom/indication goes away, replace the original HandsFreeLink control unit 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 registration Some mobile phones do not support the function Check online at www.acura.com/handsfreelink or call the HFL support desk at 888-528-7876 to make sure the Bluetooth phone is compatible with the HFL system and that there are no know issues

1. Turn the ignition switch to ON (II), or press the engine start/stop button to select the ON mode
2. Turn on the audio unit, and check that MENU, SKIP, and TITLE button function normally with the audio unit Is the audio unit operation OK? YES -Go to step 3 NO -Substitute a known-good audio unit (see «AUDIO UNIT REMOVAL/INSTALLATION»(/acura/tl/iv-2008-2011/remont/entertainment-systems/#audio-system) ), and recheck If the symptom/indication goes away, replace the original audio unit
3. Check that music plays with the Bluetooth device Is the system normal? YES -Go to step 4 NO -Go to No sound when Bluetooth audio is used (see «NO SOUND WHEN BLUETOOTH AUDIO IS USED (WITHOUT NAVIGATION)»(/acura/tl/iv-2008-2011/remont/entertainment-systems/#hands-free-link-system__no-sound-when-bluetooth-audio-is) )
4. If you have the client's Bluetooth phone, go to step 5. Otherwise, pair a know-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 «HFL SWITCH TEST»(/acura/tl/iv-2008-2011/remont/entertainment-systems/#hands-free-link-system) ), and recheck If the symptom/indication goes away, replace the original HandsFreeLink control unit
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 «HFL SWITCH TEST»(/acura/tl/iv-2008-2011/remont/entertainment-systems/#hands-free-link-system) ), and recheck If the symptom/indication goes away, replace the original HandsFreeLink control unit NO -The client's Bluetooth phone is defective or not compatible

Scheme 301

1. Remove the audio remote, HFL-navigation voice control switch or the audio remote-HFL switch (see «STEERING WHEEL DISASSEMBLY/REASSEMBLY»(/acura/tl/iv-2008-2011/remont/electronic-steering/#power-steering-system) )
2. Measure the resistance between terminals No 9 and No 11 in each switch position according to the table HFL Switch (with navigation) HFL SWITCH RESISTANCE SPECIFICATION (WITH NAVIGATION) Position Resistance No button pressed About 10 k ohms PICK-UP button pressed About 47 ohms HANG-up button pressed About 220 ohms HFL Switch (without navigation) HFL SWITCH RESISTANCE SPECIFICATION (WITHOUT NAVIGATION) Position Resistance No button pressed About 1 k ohms HFL TALK button pressed About 46 ohms HFL BACK button pressed About 185 ohms

HandsFreeLink Control Unit Removal/Installation

Note. Tell the customer they need to write down all phone numbers as there is no way to transfer the information in the original HandsFreeLink control unit to a new HandsFreeLink control unit

Scheme 302

Scheme 303

1. Remove the center console panel (see «CENTER CONSOLE PANEL REMOVAL/INSTALLATION»(/acura/tl/iv-2008-2011/remont/gauges-instrument-panels/#consoles__center-console-panel-removalinstallation) )
2. Disconnect the HandsFreeLink 28P connector (A) NOTE: With keyless access Disconnect the LF antenna 2P connector (B)
3. Remove the screws (A) and HandsFreeLink control unit(B)
4. 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 304

1. Remove the roof console (see «HEADLINER REMOVAL/INSTALLATION»(/acura/tl/iv-2008-2011/remont/exteriorinterior-trim/#interior-trim__headliner-removalinstallation) )
2. Remove the screws and bracket (A)
3. Disconnect the connector (B) and remove the HFL microphone (C)
4. Install the HFL microphone in the reverse order of removal

Scheme 305

1. Remove the HandsFreeLink control unit (see «HFL SWITCH TEST»(/acura/tl/iv-2008-2011/remont/entertainment-systems/#hands-free-link-system) )
2. Inspect the connector (A) and socket (B) 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 3
3. 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 4 TEST CONDITION REFERENCE CHART Cavity Wire 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 2V Poor ground (G501) An open or high resistance in the wire 15 WHT Under all conditions Measure the voltage to ground There should be battery voltage Blown No 15(10A) fuse in the under-hood fuse/relay box An open in the wire 16 PUR Ignition switch in ACCESSORY (I) or ON (II), or the engine start/stop button to ACC mode or ON mode 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
4. Disconnect the 28P connector again, and make this input test at the connector If the test indicates a problem, find and correct the cause and check for B-CAN related DTCs, then recheck the system If the input test proves OK, the HandsFreeLink control unit is faulty, replace it TEST CONDITION REFERENCE CHART Cavity Wire Test condition Test Desired result Possible cause if desired result is not obtained 17 BLU Under all conditions Check for continuity between No 17 terminal and passenger's under-dash fuse/relay box connector D (28P) No 14 terminal There should be continuity An open in the wire Passenger's under-dash fuse/relay box connector D (28P) disconnected Check for continuity to ground There should be no continuity Short to ground 18 PNK Under all conditions Check for continuity between No 18 terminal and passenger's under-dash fuse/relay box connector D (28P) No 13 terminal There should be continuity An open in the wire Passenger's under-dash fuse/relay box connector D (28P) disconnected Check for continuity to ground There should be no continuity Short to ground

See also:
• DLC CIRCUIT TROUBLESHOOTING
• DTC U0199: DRIVER'S MICU LOST COMMUNICATION WITH DOOR MULTIPLEX CONTROL UNIT
• TROUBLESHOOTING - B-CAN SYSTEM DIAGNOSIS TEST MODE A
• CENTER CONSOLE PANEL REMOVAL/INSTALLATION
• AUDIO-NAVIGATION UNIT REMOVAL/INSTALLATION
• STEERING WHEEL DISASSEMBLY/REASSEMBLY
• CABLE REEL REPLACEMENT
• BATTERY TEST
• AUDIO-NAVIGATION SWITCH PANEL REMOVAL/INSTALLATION
• VOICE CONTROL DOES NOT WORK/RESPOND
• STEERING WHEEL REMOVAL
• SOUND QUALITY DIAGNOSIS
• NO SOUND IS HEARD FROM THE SPEAKER(S) (DISPLAY IS NORMAL) (WITH NAVIGATION)
• HOW TO CHECK ERROR HISTORY
• NAVIGATION DISPLAY UNIT REMOVAL/INSTALLATION
• HEADLINER REMOVAL/INSTALLATION
• SYMPTOM TROUBLESHOOTING
• DROPPED CALLS
• CHECKING CELL PHONE COMPATIBILITY
• DTC B1775: MICROPHONE INPUT/OUTPUT SHORT TO POWER/OPEN (WITHOUT NAVIGATION)
• DTC B1776: MICROPHONE INPUT/OUTPUT SHORT TO GROUND (WITH NAVIGATION)
• DTC B1779: HFL SWITCH OR VOICE CONTROL SWITCH (PICK-UP/HANG-UP BUTTONS) CIRCUIT OPEN/SHORT TO POWER (WITH NAVIGATION)
• DTC B1780: HFL SWITCH (PICK-UP/HANG-UP BUTTONS) CIRCUIT SHORT
• DTC B1792: HANDSFREELINK CONTROL UNIT INTERNAL ERROR
• SELF-DIAGNOSTIC FUNCTION
• HFL SYSTEM TROUBLESHOOTING
• THE HFL SYSTEM DOES NOT RECOGNIZE ALL VOICE PROMPTS
• VOICE CONTROL TIPS AND IMPROVING VOICE RECOGNITION
• NO SOUND WHEN BLUETOOTH AUDIO IS USED (WITH NAVIGATION)
• BLUETOOTH AUDIO DOES NOT WORK (WITH NAVIGATION)
• BLUETOOTH AUDIO DOES NOT WORK (WITHOUT NAVIGATION)
• BLUETOOTH CELL PHONE CANNOT BE PAIRED
• THE COMMUNICATION WITH CELL PHONE IS INTERRUPTED OR CHANGES (WITH NAVIGATION)
• PAIRING INSTRUCTIONS ARE NOT DISPLAYED ON THE SCREEN
• BLUETOOTH CELL PHONE AUDIO FUNCTION SKIP AND PAUSE/RESUME DO NOT WORK (WITH NAVIGATION)
• PAIRING TROUBLESHOOTING