Diagnostic Procedure
WARNING: This page is about a different car, the 2017 Mazda 3. However, it is still accessible from the selected car via links, so may be relevant.
DTC U0423:68 (CLIMATE CONTROL UNIT - FULL-AUTO AIR CONDITIONER) DIAGNOSTIC PROCEDURE
| STEP | Inspection | Action | |
|---|---|---|---|
| 1 | PERFORM INSTRUMENT CLUSTER DTC INSPECTION
|
Yes | Go to the applicable DTC inspection. (See DTC TABLE [INSTRUMENT CLUSTER] .) |
| No | Go to the next step. | ||
| 2 | PERFORM CLIMATE CONTROL UNIT DTC INSPECTION
|
Yes | Replace the instrument cluster, then go to the next step. (See INSTRUMENT CLUSTER REMOVAL/INSTALLATION .) |
| No | Go to the next step. | ||
| 3 | VERIFY TROUBLESHOOTING COMPLETED
|
Yes | Repeat the inspection from Step 1.
Go to the next step. |
| No | Go to the next step. | ||
| 4 | VERIFY THAT NO OTHER DTCs ARE PRESENT
|
Yes | Repair or replace the malfunctioning part according to the applicable DTC troubleshooting. (See DTC TABLE [CLIMATE CONTROL UNIT (FULL-AUTO AIR CONDITIONER)] .) |
| No | DTC troubleshooting completed. | ||