DTC C124A-05: Braking System Information System Programming Failure [03/2024 - ]: Procedure

1. Check That The Proper Hybrid Vehicle Control ECU Is Installed.

   Ok

   Proper Hybrid Vehicle Control ECU Is Installed.

   Result

   Proceed To
   Ok
   Ng

Result: 

Ng 

Replace Hybrid Vehicle Control ECU. Refer To  Removal [11/2021 - ] 

Result: 

Ok 

See Step  2

1. Check That The Proper No. 2 Skid Control ECU (Brake Actuator Assembly) Is Installed.

   Ok

   Proper No. 2 Skid Control ECU (Brake Actuator Assembly) Is Installed.

   Result

   Proceed To
   Ok
   Ng

Result: 

Ng 

Replace Brake Actuator Assembly. Refer To  Removal [11/2021 - ] 

Result: 

Ok 

See Step  3

1. Clear System Information.

   Refer To Reset Memory / Calibration [11/2021 - ]

   Chassis > Brake/Epb > Utility 

   Tester Display
   Reset Memory

   Result

   Proceed To
   Next

Result: 

Next 

See Step  4

1. Perform System Information Memorization.

   Refer To Reset Memory / Calibration [11/2021 - ]

   Chassis > Brake/Epb > Utility 

   Tester Display
   Calibration

   Hint: 

   After Performing "Reset Memory" Using The Gts To Clear The Memorized Value Of The No. 2 Skid Control ECU (Brake Actuator Assembly), Dtc C124A-05 Will Be Stored Until System Information Memorization Is Performed.

   Result

   Proceed To
   Next

Result: 

Next 

See Step  5

1. Clear The DTCS.

   Chassis > Brake/Epb > Clear DTCS 

2. Turn The Ignition Switch Off.

   Result

   Proceed To
   Next

Result: 

Next 

See Step  6

1. Based On The Freeze Frame Data And Interview With The Customer, Attempt To Reproduce The Conditions When The Malfunction Occurred.
2. Check If The Same Dtc Is Output.

   Chassis > Brake/Epb > Trouble Codes 

   Result

   Result	Proceed To
   Dtc C124A-05 Is Not Output.	A
   Dtc C124A-05 Is Output.	B

Result: 

A 

End 

Result: 

B 

Replace Brake Actuator Assembly. Refer To  Removal [11/2021 - ]