With Manufacturer's Scan Tool
How to Check for DTCs with the HDS1. Make sure the ignition switch is OFF.
2. Connect the HDS to the data link connector (DLC) (A) located under the driver's side of the dashboard.
3. Turn the ignition switch ON (II).
4. Select DTCs in the BODY ELECTRICAL/CLIMATE CONTROL MODE menu of the HDS.
5. Check for DTCs. If any DTCs are indicated, write down the DTCs, then go to the indicated DTC troubleshooting. If no DTCs are indicated, refer to symptom troubleshooting. Symptom Related Diagnostic Procedures
NOTE: After troubleshooting, clear the DTCs with the HDS.
Checking for DTCs
1. Turn the ignition switch ON (II).
2. Press and hold the AUTO button, then the OFF button. Continue to hold both buttons, if a DTC is detected, the DTC segment will flash then alternate to all segments flash.
NOTE:
- If you release the buttons, the display will go blank. To return the display, simply press the AUTO, then the OFF buttons again.
- In the case of multiple DTCs, the temperature indicator will display all of them. If indicator segments A, C, E, G, I, L, 0, R, T, and V are on at the same time, there may be an open in the common ground wire.