These DTCs are recorded when the electric brake booster cannot temporarily receives a brake request from the integrated driver support system due to a drop in the 12 volt battery voltage supplied to the electric brake booster.
If this DTC is recorded, some of the integrated driver support system functions are temporarily canceled but it is not a failure.
When the electric brake booster returns to normal, the temporarily cancelled integrated driver support system functions are re-activated.
The functions of the integrated driver support system that will be temporarily canceled when this DTC is recorded can be confirmed with the DTC troubleshooting index.
DTC Description
DTC
U0418-9A Temporary stop of Integrated Driver Support System (Not Start-Up Electric Brake Booster Control Unit)
1.
DTC check:
DTC check
?1.
Turn the vehicle to the ON mode, then wait for at least 6 seconds.
?2.
Check for DTCs with the HDS.
DTC Description
DTC
U0418-9A Temporary stop of Integrated Driver Support System (Not Start-Up Electric Brake Booster Control Unit)
Is there any DTC(s) other than U0418-9A?
YES
Perform a troubleshooting for the recorded DTC.?
NO
Clear the DTC with the HDS and explain to the customer that it is not a failure.?
