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 U2300:54, U2300:55, U2300:56, U2300:64 (CLIMATE CONTROL UNIT - FULL-AUTO AIR CONDITIONER) DIAGNOSTIC PROCEDURE
| STEP | Inspection | Action | |
|---|---|---|---|
| 1 | RECORD CAR CONFIGURATION DATA
|
Go to the next step. | |
| 2 | VERIFY THAT SAME DTC IS NOT PRESENT
|
Yes | Repeat the inspection from Step 1. If the malfunction recurs, go to the next step. |
| No | Go to Step 5. | ||
| 3 | INSPECT FOR INSTRUMENT CLUSTER MALFUNCTION
|
Yes | Go to applicable DTC inspection. (See DTC TABLE [INSTRUMENT CLUSTER] .) After repairing the instrument cluster, perform the instrument cluster configuration. (See INSTRUMENT CLUSTER CONFIGURATION (USING AS-BUILT DATA) .) Then go to the next step. |
| No | Go to the next step. | ||
| 4 | VERIFY THAT SAME DTC IS NOT PRESENT
|
Yes | Repeat the inspection from Step 1.
Go to the next step. |
| No | Go to the next step. | ||
| 5 | 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. | ||