DTC Troubleshooting: B2A00-F8
DTC B2A00-F8: ACC Brake Control Temporarily Prohibited
NOTE:
This DTC is stored when the VSA temporarily prohibits use of the ACC automatic brake because of excessive operation of the automatic brake.
If DTC U0122-00 is stored at the same time as DTC B2A00-F8, troubleshoot DTC U0122-00 first, then recheck for DTC B2A00-F8.
Before you troubleshoot, review the general troubleshooting information.

DTC Description
DTC
Freeze Frame
B2A00-F8 ACC Brake Control Temporarily Prohibited
    

1.
VSA system DTCs check:

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

?2.
Check for VSA system DTCs with the HDS.
DTC Description
DTC
Freeze Frame
     

Are any DTCs indicated?

     
YES
     
     
     
     
NO
     
     
     
Go to step 2.
2.
Problem verification:

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


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

?3.
Start the vehicle and test-drive it at 25 mph (40 km/h) or more with the ACC activated.
NOTE: Drive the vehicle on the road, not on a lift.

?4.
Check for DTCs with the HDS.
DTC Description
DTC
Freeze Frame
B2A00-F8 ACC Brake Control Temporarily Prohibited
    

Is DTC B2A00-F8 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. 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.?