HandsFreeLink System Self-Diagnostic Function
How to Check the HandsFreeLink System Status
NOTE:
The self-diagnostic function can only be initiated while the HFL system is in its idle state.
The self-diagnostic function starts after you press and hold the HANG-UP/BACK button on the HFL switch for 5 seconds, and ends if the HandsFreeLink control unit returns to its idle state.

1.
Turn the vehicle to the ON mode.

2.
Press and hold the HANG-UP/BACK button (A) for more than 5 seconds.
3.
When the HFL system enters the self-diagnostic function, the following will occurs:

If the HFL system does not respond, go to HFL does not respond troubleshooting.
If the HFL system is OK, and there are no HFL DTCs, the HFL system says, ‘‘The HFT is OK.’’
If there are any HFL DTCs stored, the HFL system says, ‘‘The HFT is NG.’’. Check for HFL DTCs.