How to Check for DTCs with the HDS NOTE: Before troubleshooting the climate control system, refer to the multiplex integrated control system test mode A.

1. Make sure the ignition switch is OFF.

1. Connect the HDS to the Data Link Connector (DLC) located under the driver's side of the dashboard.

1. Turn the ignition switch ON (II).

1. Select DTCs in the body electrical/climate control mode MENU the HDS.

1. Check for DTCs. If a DTC is indicated, go to the next step. If no DTC(s) is indicated, refer to symptom troubleshooting.

1. Turn the ignition switch OFF.

1. Disconnect the HDS from the DLC.

1. Do the troubleshooting procedure for the DTC indicated.