DTC U0423-68: Error Signal Received From Instrument Cluster [Adaptive Front Lighting System (AFS) Control Module]: Notes
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) DETECTION CONDITION AND POSSIBLE CAUSE
| Description |
Error signal received from instrument cluster
- Ignition switch error signal
- Selector lever position (R position) (AT)/reverse (MT) signal error
- Selector lever position (R position) (AT)/reverse (MT) signal not determined
|
| DETECTION CONDITION |
- Ignition switch error signal
- The adaptive front lighting system (AFS) control module received ignition switch error signal for 5 s or more with the ignition switched ON (engine off or on).
- Selector lever position (R position) (AT)/reverse (MT) signal error
- The adaptive front lighting system (AFS) control module received selector lever position (R position) (AT)/reverse (MT) signal error for 5 s or more with the ignition switched ON (engine off or on).
- Selector lever position (R position) (AT)/reverse (MT) signal not determined
- The adaptive front lighting system (AFS) control module detected undetermined selector lever position (R position) (AT)/reverse (MT) signal.
|
| Fail-safe |
- Ignition switch error signal
- Control of the adaptive front lighting system (AFS) is continued with the ignition switched ON (engine on).
- Control of the headlight auto leveling system is continued.
- Selector lever position (R position) (AT)/reverse (MT) signal error
- The swivel actuator is moved to the center.
- Control of the headlight auto leveling system is continued.
- Selector lever position (R position) (AT)/reverse (MT) signal not determined
- Control of the swivel actuator is continued with the transmission range switch (AT)/back-up light switch (MT) fixed in the condition when the malfunction is determined.
- Control of the headlight auto leveling system is continued.
|
| Possible cause |
- DTCs are stored in the instrument cluster.
- Instrument cluster malfunction
- Adaptive front lighting system (AFS) control module malfunction
|
| SYSTEM WIRING DIAGRAM |
Not applicable |