FixVault

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 U2300:54 (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 RESET INSTRUMENT CLUSTER CONFIGURATION DATA
Yes Using the M-MDS, perform the instrument cluster configuration (using As-Built data) again, then go to the next step.
(See INSTRUMENT CLUSTER CONFIGURATION (USING AS-BUILT DATA) .)
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
  • Are any 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.