DTC U3000-51 (EPS Control Unit)

DTC U3000-51  : ECU Software Update Failure

NOTE: 

• Before you troubleshoot, review the general troubleshooting information .
• Never turn the vehicle to the OFF (LOCK) mode during the update. If there is a problem with the update, leave the vehicle in the ON mode
• This DTC is indicated when the EPS motor/control unit update is not completed.

DTC (EPS)

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, then the READY TO DRIVE mode.

   -4. Check for DTCs with the HDS.

   DTC Description	DTC	Freeze Frame
   U3000-51 ECU Software Update Failure

   Is DTC U3000-51 indicated?

   YES 

   The failure is duplicated. Go to step 2.

   NO 

   Intermittent failure, the system is OK at this time. Refer to intermittent failures troubleshooting . If the freeze data/on-board snapshot of this DTC is recorded, try to reproduce the failure under the same conditions with the freeze data/on-board snapshot.

2. EPS control unit check (update)

   -1. Update the EPS control unit .

   -2. Turn the vehicle to the OFF (LOCK) mode, then the READY TO DRIVE mode.

   -3. Check for DTCs with the HDS.

   DTC Description	DTC	Freeze Frame
   U3000-51 ECU Software Update Failure

   Is DTC U3000-51 indicated?

   YES 

   Check for loose terminals and poor connections at the EPS control unit connectors. Check for any authorized service information related to the DTCs or symptoms you are troubleshooting or substitute a known-good EPS motor/control unit , then recheck. If the symptom/indication goes away with a known-good EPS motor/control unit, replace the original EPS motor/control unit .

   NO 

   Troubleshooting is complete.