DTC Troubleshooting: P0720-62
DTC P0720-62: Vehicle Speed Signal Error
NOTE:
Before you troubleshoot, review the general troubleshooting information.
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.

DTC Description
DTC
Freeze Frame
P0720-62 Vehicle Speed Signal Error
    

1.
PGM-FI system DTC check:

PGM-FI system DTC check
?1.
Turn the vehicle to the ON mode.

?2.
Check for DTCs with the HDS.
DTC Description
Confirmed DTC
Pending DTC
Freeze Frame
       

Are any DTCs indicated?

     
YES
     
     
     
     
NO
     
     
     
Go to step 2.
2.
VSA system DTC check:

VSA system DTC check
?1.
Turn the vehicle to the ON mode.

?2.
Check for DTCs with the HDS.
DTC Description
DTC
   

Are any DTCs indicated?

     
YES
     
     
     
     
NO
     
     
     
Go to step 3.
3.
Problem verification:

Problem verification
?1.
Clear the DTC with the HDS.


?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 parameter(s) below with the HDS.
NOTE: Drive the vehicle on the road, not on a lift.

Signal
Current conditions
Values
Unit
Vehicle speed
    

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

     
YES
     
     
     
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.?
     
NO
     
     
     
The failure is duplicated. Go to step 4.
4.
PGM-FI system parameter check:

PGM-FI system parameter check
?1.
Test-drive the vehicle at speeds 25 mph (40 km/h) or more with the ACC activated, and check the parameter(s) below with the HDS.
NOTE: Drive the vehicle on the road, not on a lift.

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. Check for any authorized service information related to the DTCs or symptoms you are troubleshooting. If they are OK, replace the multipurpose camera unit.?
     
NO