DTC C124A-05: Braking System information System Programming Failure [12/2023 - ]: Procedure

1. Check that the proper ECM is installed.

   OK

   Proper ECM is installed.

   Result

   Proceed to
   OK
   NG

Result: 

NG 

REPLACE ECM. Refer to  REMOVAL [12/2023 - ] 

Result: 

OK 

See step  2

1. Check that the proper skid control ECU (brake actuator assembly) is installed.

   OK

   Proper skid control ECU (brake actuator assembly) is installed.

   Result

   Proceed to
   OK
   NG

Result: 

NG 

REPLACE BRAKE ACTUATOR ASSEMBLY. Refer to  REMOVAL [12/2023 - ] 

Result: 

OK 

See step  3

1. Clear system information.

   HINT: 

   Refer to RESET MEMORY / CALIBRATION [12/2023 - ]

   Chassis > Brake/EPB > Utility 

   Tester Display
   Reset Memory

   Result

   Proceed to
   NEXT

Result: 

NEXT 

See step  4

1. Perform system information memorization.

   HINT: 

   Refer to RESET MEMORY / CALIBRATION [12/2023 - ]

   Chassis > Brake/EPB > Utility 

   Tester Display
   Calibration

   HINT: 

   After performing "Reset Memory" using the GTS to clear the memorized value of the 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

Pre-procedure1

1. None

   Procedure1

2. Clear the DTCs.

   Chassis > Brake/EPB > Clear DTCs 

   Result

   Proceed to
   NEXT

   Post-procedure1

3. Turn the ignition switch off.

Result: 

NEXT 

See step  6

Pre-procedure1

1. Based on the Freeze Frame Data and interview with the customer, attempt to reproduce the conditions when the malfunction occurred.

   Procedure1

2. Check if the same DTC is output.

   Chassis > Brake/EPB > Trouble Codes 

   Result

   Result	Proceed to
   C124A-05 is not output	A
   C124A-05 is output	B

   Post-procedure1

3. None

Result: 

A 

END 

Result: 

B 

REPLACE BRAKE ACTUATOR ASSEMBLY. Refer to  REMOVAL [12/2023 - ]