Diagnostic Procedure
WARNING: This page is about a different car, the 2020 Mazda MX-5 Miata. However, it is still accessible from the selected car via links, so may be relevant.
DTC U0423:68 (ADAPTIVE FRONT LIGHTING SYSTEM CONTROL MODULE) DIAGNOSTIC PROCEDURE
| STEP | Inspection | ACTION | |
|---|---|---|---|
| 1 | VERIFY INSTRUMENT CLUSTER DTCs
|
Yes | Repair the malfunctioning part according to the applicable DTC troubleshooting. (See DTC TABLE [INSTRUMENT CLUSTER] .) |
| No | Go to the next step. | ||
| 2 | VERIFY IF MALFUNCTIONING LOCATION IS INSTRUMENT CLUSTER DEPENDING ON REPEATABILITY
|
Yes | Replace the instrument cluster, then go to the next step. (See INSTRUMENT CLUSTER REMOVAL/INSTALLATION .) |
| No | Go to Step 4. | ||
| 3 | VERIFY THAT REPAIRS HAVE BEEN COMPLETED
|
Yes | Replace the adaptive front lighting system (AFS) control module, then go to the next step. (See ADAPTIVE FRONT LIGHTING SYSTEM (AFS) CONTROL MODULE REMOVAL/INSTALLATION .) |
| No | Go to the next step. | ||
| 4 | VERIFY IF OTHER DTCs DISPLAYED
|
Yes | Repair the malfunctioning part according to the applicable DTC troubleshooting. (See DTC TABLE [ADAPTIVE FRONT LIGHTING SYSTEM (AFS) CONTROL MODULE] .) |
| No | DTC troubleshooting completed. | ||