Symptom Troubleshooting

Symptom Troubleshooting: The HFL system does not recognize all voice prompts

The HFL system does not recognize all voice prompts

1. Connect the HDS to the DLC. Initial Inspection and Diagnostic Overview

2. Clear the DTCs with the HDS.

3. Turn the ignition switch to LOCK (0), then turn it to ON (II).

4. Check for DTCs.

Are there any DTCs indicated?
YES - Repair the indicated DTCs.

NO - Go to step 5.


5. Check if the problem is duplicated.

Can the customer's problem be duplicated?
YES - Go to step 6.

NO - The system is OK at this time. Ask the customer to demonstrate the problem.


6. 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.


7. Pair the customer's phone to a known-good vehicle and try to duplicate the problem.

Can you duplicate the problem?
YES - If there are no known issues, explain to the customer's this is a system characteristic and cannot be improved at this time.

NO - Substitute a known-good HFL-navigation microphone. If the problems still present, substitute a known-good HandsFreeLink control unit. Service and Repair If the problem goes away, replace the original HFL-navigation microphone. Service and Repair