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 C0051:86 (ADAPTIVE FRONT LIGHTING SYSTEM CONTROL MODULE) DIAGNOSTIC PROCEDURE
| STEP | Inspection | ACTION | |
|---|---|---|---|
| 1 | VERIFY START STOP UNIT DTCs
|
Yes | Repair the malfunctioning part according to the applicable DTC troubleshooting. (See DTC TABLE [START STOP UNIT] .) |
| No | Go to the next step. | ||
| 2 | VERIFY ELECTRIC POWER STEERING (EPS) CONTROL MODULE DTCs
|
Yes | Repair the malfunctioning part according to the applicable DTC troubleshooting. (See DTC TABLE [EPS CONTROL MODULE] .) |
| No | Go to the next step. | ||
| 3 | VERIFY IF MALFUNCTIONING LOCATION IS ELECTRIC POWER STEERING (EPS) CONTROL MODULE DEPENDING ON REPEATABILITY
|
Yes | Replace the electric power steering (EPS) control module, then go to the next step. (See STEERING WHEEL AND COLUMN REMOVAL/INSTALLATION .) |
| No | Go to Step 5. | ||
| 4 | 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. | ||
| 5 | 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. | ||