Symptom Troubleshooting

Navigation System Symptom Troubleshooting - Navigation does not call using the HFL

Navigation does not call using the HFL

NOTE:

- Always have the customer demonstrate their concern. Compare the operation of this feature in a known-good vehicle.
- Review the navigation system manual for the proper operation of this feature. If the navigation database does not have a phone number listed for the POI you are trying to call (for example, a public park), the navigation system cannot place a call through HFL.
- You must have the customer's phone, the phone must be on the list of the HFL approved phones and configured correctly.
- For a current list of HFL approved phones, go to handsfreelink.com or call the HFL support desk at 888-528-7876

1. Connect the HDS to the DLC Reading and Clearing Diagnostic Trouble Codes.

2. Clear the DTCs with the HDS.

3. Turn the ignition switch to LOCK (0) and then back to ON (II).

4. Check for B-CAN DTCs in the data list.

Are there any DTCs in the B-CAN systems?

YES -

Troubleshoot and repair all CAN related DTCs, and retest.�

NO -

Make sure the cell phone is paired to the HFL and working properly, then go to step 5.

5. Turn the ignition switch to LOCK (0).

6. Disconnect navigation unit connector D (5P) and the HandsFreeLink control unit 28P connector.

7. Check for continuity between body ground and navigation unit connector D (5P) terminals according to the table.









Is there continuity?

YES -

There is a short to body ground in the wire(s) between the HandsFreeLink control unit and the navigation unit. Replace the affected shielded harness.�

NO -

Go to step 8.

8. Check for continuity between navigation unit connector D (5P) terminals according to the table.





*: Shielding





Is there continuity?

YES -

There is a short in the wire(s) between navigation unit and HandsFreeLink control unit. Replace the affected shielded harness.�

NO -

Go to step 9.

9. Check for continuity between navigation unit connector D (5P) terminals and the HandsFreeLink control unit 28P connector terminals according to the table.









Is there continuity?

YES -

Substitute a known-good HandsFreeLink control unit Service and Repair, then reconnect all of the connectors and recheck. If the symptom/indication goes away, replace the original HandsFreeLink control unit Service and Repair. If the symptom/indication goes away, replace the navigation unit Service and Repair.�

NO -

There is an open in the wire(s) between the HandsFreeLink control unit and the navigation unit. Replace the affected shielded harness.�