DTC Troubleshooting: B2A00-F8
DTC B2A00-F8: ACC Brake Control Temporarily Prohibited
NOTE:
Before you troubleshoot, review the general troubleshooting information.
This DTC is stored when the brake pad gets excessively hot due to excessive automatic brake activation; the wheel sensor voltage drops; and the VSA modulator-control unit temporarily stops operating.
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.

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

1.
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 2.
2.
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.
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
     
     
     
The failure is duplicated. 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
     
     
     
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.?