U3003-17 Brake Booster Control Unit Power Circuit (+B) High Voltage
1.
Problem verification:
Problem verification
?1.
Turn the vehicle to the ON mode.
?2.
Clear the DTC with the HDS.
?3.
Turn the vehicle to the OFF (LOCK) mode, then wait 5 seconds or more.
NOTE: Do not open and close the driver's door.
?4.
Turn the vehicle to the ON mode.
?5.
Check for DTCs with the HDS.
DTC Description
DTC
Freeze Frame
U3003-17 Brake Booster Control Unit Power Circuit (+B) High Voltage
Is DTC U3003-17 indicated?
YES
The failure is duplicated. Go to step 2.
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.?
2.
DTC check (PGM-FI system):
DTC check (PGM-FI system)
?1.
Check for DTCs with the HDS.
DTC Description
Confirmed DTC
Pending DTC
Is DTC indicated?
YES
Go to indicated DTC's troubleshooting.?
NO
Check for loose terminals and poor connections in the electric brake booster 26P connector. Check for any authorized service information related to the DTCs or symptoms you are troubleshooting. If they are OK, replace the electric brake booster.?