DTC : U0401-68

DTC U0401-68  : PCM (PGM-FI System) Malfunction

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

1. PGM-FI system DTCs check

   - 1. Turn the vehicle to the ON mode.

   - 2. Check for PGM-FI system DTCs with the HDS.

   DTC Description	Confirmed DTC	Pending DTC	Freeze Frame

   Are any DTCs indicated?

   YES 

   Go to the indicated DTC's troubleshooting - Refer to:

   PCM Connector for Inputs and Outputs (9-Speed A/T) (2016 2017 2018)

   PCM Connector for Inputs and Outputs (9-Speed A/T) (2019 2020 2021)

   PCM Connector for Inputs and Outputs (6-Speed A/T) (2016 2017 2018 2019 2020)

   NO 

   Go to step 2.

2. Problem verification

   - 1. Clear the DTC with the HDS.

   Clear DTCs

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

   - 3. Turn the vehicle to the ON mode, then wait for at least 5 seconds.

   - 4. Check for DTCs with the HDS.

   Is DTC U0401-68 indicated?

   YES 

   Check for loose terminals and poor connections in the multipurpose camera unit 20P connector. If they are OK, replace the Multipurpose Camera Unit .

   NO 

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

   How to Troubleshoot the Adaptive Cruise Control (ACC) (2016 2017 2018)

   How to Troubleshoot the Adaptive Cruise Control (ACC) (2019 2020 2021)

   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.