DTC U3000-51 (VSA Control Unit)

DTC U3000-51  : ECU Software Update Failure

NOTE: 

• Before you troubleshoot, review the general troubleshooting information .
• Do not turn the vehicle to the OFF (LOCK) mode while updating the VSA modulator-control unit. If you turn the vehicle to the OFF (LOCK) mode before completion, the VSA modulator-control unit will be damaged.

DTC (VSA)

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 to the ON 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. VSA modulator-control unit check (update)

   -1. Update the VSA modulator-control unit .

   -2. Turn the vehicle to the OFF (LOCK) mode, then to the ON mode.

   -3. Check for DTCs with the HDS.

   DTC Description	DTC	Freeze Frame

   Is DTC U3000-51 indicated?

   YES 

   The failure is duplicated. Check for loose terminals and poor connections in the VSA modulator-control unit 46P connector. Check for any authorized service information related to the DTCs or symptoms you are troubleshooting. If they are OK, replace the VSA modulator-control unit .

   NO 

   Troubleshooting is complete. If any other DTCs are indicated, go to the indicated DTCs troubleshooting.