DTC U0401-68 (VSA Control Unit)

DTC U0401-68  : ECM Failure

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

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 start the engine.

   -4. Test-drive the vehicle at 6 mph (10 km/h) or more for at least 2 seconds.

   NOTE:  Drive the vehicle on the road, not on a lift.

   -5. Check for DTCs with the HDS.

   DTC Description	DTC	Freeze Frame
   U0401-68 ECM Failure

   Is DTC U0401-68 indicated?

   YES 

   The failure is duplicated. Go to PGM-FI system troubleshooting .

   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.