DTC U0423-68, U1280-00, U1281-00, U128C-00 (Millimeter Wave Radar)

DTC U0423-68  : Gauge Control Module Malfunction

DTC U1280-00  : Lost Communication With The B-CAN Systems

DTC U1281-00  : Lost Communication with The MICU (Body Control Module)

DTC U128C-00  : Lost Communication with The Wiper Control Unit

NOTE: 

• Before you troubleshoot, review the general troubleshooting information .
• These DTCs are recorded when the millimeter wave radar receives failure information for relevant B-CAN systems or switches judged by the gauge control module.
• B-CAN system information used to control the integrated driver support system of this vehicle is obtained from the gauge control module via the F-CAN.
• If a DTC is recorded after it is cleared with the HDS, perform a self-diagnostic function for the gauge control module .
• The functions of the integrated driver support system that will be temporarily canceled when this DTC is recorded can be confirmed with the DTC troubleshooting index .

DTC (IDAS)

1. Problem verification

   -1. Turn the vehicle to the ON mode.

   -2. Clear the DTC with the HDS.

   -3. Turn the vehicle to the OFF (LOCK) mode.

   -4. Turn the vehicle to the ON mode, then wait for at least 6 seconds.

   -5. Check for DTCs with the HDS.

   DTC Description	DTC
   U0423-68 Gauge Control Module Malfunction

   DTC Description	DTC
   U1280-00 Lost Communication With The B-CAN Systems
   U1281-00 Lost Communication with The MICU (Body Control Module)
   U128C-00 Lost Communication with The Wiper Control Unit

   Is DTC U0423-68, U1280-00, U1281-00, or U128C-00 indicated?

   YES 

   The failure is duplicated. Go to the indicated DTC's troubleshooting in the gauge control module .

   NO 

   Intermittent failure, the system is OK at this time. Refer to intermittent failures troubleshooting .