DTC : P0720-62

DTC P0720-62  : Vehicle Speed Signal Error

NOTE: 

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

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

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

• If DTC U0100-00 or DTC U0101-00 is stored at the same time as DTC P0720-62, troubleshoot DTC U0100-00 or DTC U0101-00 first, then recheck for DTC P0720-62.

1. A/T system DTCs check

   - 1. Turn the vehicle to the ON mode.

   - 2. Check for A/T 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 How to Troubleshoot the A/T System .

   NO 

   Go to step 2.

2. VSA system DTCs check

   - 1. Check for VSA system DTCs with the HDS.

   DTC Description	DTC	Freeze Frame

   Are any DTCs indicated?

   YES 

   Go to the indicated DTC's troubleshooting How to Troubleshoot the A/T System .

   NO 

   Go to step 3.

3. Multipurpose camera unit check

   - 1. Clear the DTC with the HDS.

   Clear DTCs

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

   - 3. Test-drive the vehicle at 25 mph (40 km/h) or more with the ACC activated, and check the data of vehicle speed signal with the HDS (ACC system).

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

   Does HDS correspond to the vehicle speed indicated in the gauge control module?

   YES 

   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) or

   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.

   NO 

   Go to step 4.

4. PCM check

   - 1. Test-drive the vehicle at speeds 25 mph (40 km/h) or more with the ACC activated.

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

   - 2. Check the parameter(s) below with the HDS (PGM-FI system).

   Signal	Current conditions
   	Values	Unit
   VEHICLE SPEED

   Does HDS correspond to the vehicle speed indicated in the gauge control module?

   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 

   Go to the PGM-FI system troubleshooting - Refer to: How to Troubleshoot the Fuel and Emissions Systems, .