DTC U0401-68

DTC U0401-68  : ECM Failure

NOTE:  Before you troubleshoot, review the general troubleshooting information - Refer to:

How to Troubleshoot the VSA System (2014 2015 2016) or

How to Troubleshoot the VSA System (2017 2018 2019 2020) 

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. 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 - Refer to:

   How to Troubleshoot the Fuel and Emissions Systems (2014-20) or

   How to Troubleshoot the Fuel and Emissions Systems (With Auto Idle Stop System) (2016-20)

   NO 

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

   How to Troubleshoot the VSA System (2014 2015 2016) or

   How to Troubleshoot the VSA System (2017 2018 2019 2020) 

   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.