DTC Troubleshooting: U3000-49 (VSA Control Unit)

DTC Troubleshooting: U3000-49

DTC U3000-49: ECU Internal Circuit Failure

NOTE: Before you troubleshoot, review the general troubleshooting information.

DTC Description	DTC	Freeze Frame
U3000-49 ECU Internal Circuit Failure

Problem verification:

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 start the engine.

?4.	Test-drive the vehicle at 25 mph (40 km/h) or more. NOTE: Drive the vehicle on the road, not on a lift.

?5.

Check for DTCs with the HDS.

DTC Description	DTC	Freeze Frame
U3000-49 ECU Internal Circuit Failure

Is DTC U3000-49 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

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.?