How to Use the Self-Diagnostic Function With the HDS

NOTE: This method is only available if the HDS can communication with the HVAC control unit. If there is a communicate problem with the HDS, go to B-CAN system diagnosis test mode A (see TROUBLESHOOTING - B-CAN SYSTEM DIAGNOSIS TEST MODE A ).

Make sure the ignition switch is in LOCK (0), or the vehicle ignition is in the OFF mode.
Connect the HDS to the DLC.
Turn the ignition switch to ON (II), or press the engine start/stop button to select the ON mode.
Make sure the HDS communicates with the vehicle and the climate control unit. If it does not, go to the DLC circuit troubleshooting (see DLC CIRCUIT TROUBLESHOOTING ).
Select HVAC/CLIMATE CONTROL in the BODY ELECTRICAL menu.
Select INSPECTION in the HVAC/CLIMATE CONTROL menu.
Select CLIMATE CONTROL SELF TEST in the INSPECTION menu.
Check for DTCs. If any DTCs are indicated, write down the DTCs, then go to the indicated DTC TROUBLESHOOTING .
NOTE:
- After troubleshooting, clear the DTCs with the HDS.
- For specific operations, refer to the user's manual that came with the HDS.