The Communication With Cell Phone Is Interrupted or Changes (Without Navigation)
HandsFreeLink System Symptom Troubleshooting - The communication with cell phone is interrupted or changes
The communication with cell phone is interrupted or changes (without navigation)
NOTE:
- Check the vehicle battery condition first Battery Test.
- 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 on-line at www.acura.com/handsfreelink or call the HFL call center at 888-528-7876 to make sure the Bluetooth cell phone is compatible with the HFL system and that there are no known 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 for sound in each mode (AM/FM and CDs).
Is the sound normal?
YES -
Go to step 3.
NO -
Go to Sound Quality Diagnosis Audio System Sound Quality Diagnosis or No sound is heard from the speaker(s) (display is normal) troubleshooting No Sound Is Heard From The Speaker(s) (Display Is Normal) (Without Navigation).
3. Try and duplicate the symptom.
Can you duplicate the symptom?
YES -
Substitute a known-good audio unit Audio Unit Removal / Installation, and recheck. If the symptom/indication goes away, replace the original audio unit Audio Unit Removal / Installation.
NO -
Go to step 4.
4. Check for communication problems with the paired phone.
Does the symptom occur in a specific place or under a specific condition?
YES -
Operation is normal: Bluetooth audio is OK at this time. There is electric wave or other interference.
NO -
- If you have the client's Bluetooth cell phone, go to step 6.
- If you have not the client's Bluetooth cell phone, go to step 5.
5. Pair a known-good Bluetooth cell phone to the client's vehicle.
Can you pair the Bluetooth cell phone, and does it operate normally?
YES -
The client's Bluetooth cell phone is defective or not compatible.
NO -
Go to step 7.
6. Pair the client's Bluetooth cell phone to a known-good vehicle.
Can you pair the Bluetooth cell phone, and does it operate normally?
YES -
Go to step 7.
NO -
The client's Bluetooth cell phone is defective or not compatible.
7. Turn the ignition switch to LOCK (0), or press the engine start/stop button to select the OFF mode.
8. Check for poor connections or loose terminals at the HandsFreeLink control unit 28P connector and audio unit connector C (14P).
Are there connections or terminals OK?
YES -
Go to step 9.
NO -
Repair poor connections or loose terminals, and recheck.
9. Disconnect the HandsFreeLink control unit 28P connector.
10. Disconnect audio unit connector C (14P).
11. Check for continuity between the HandsFreeLink control unit 28P connector and body ground according to the table.
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 12.
12. Check for continuity between audio unit connector C (14P) terminals and the HandsFreeLink control unit 28P connector according to the table.
Is there continuity?
YES -
Go to step 13.
NO -
There is an open in the wire(s) between the audio unit and the HandsFreeLink control unit. Replace the affected shielded harness.
13. Check for continuity between the terminals of the HandsFreeLink control unit 28P connector according to the table.
Is there continuity between any of the terminals?
YES -
There is a short in the wires between the audio unit and the HandsFreeLink control unit. Replace the affected shielded harness.
NO -
Substitute a known-good HandsFreeLink control unit Service and Repair, and recheck. If the symptom/indication goes away, replace the original HandsFreeLink control unit Service and Repair.