DTC C13DC-00: Brake Pressure Too High (Brake M/C1); DTC C13DE-00: Brake Pressure Too High (Brake M/C2) [11/2020 - ]: Procedure
- CUSTOMER PROBLEM ANALYSIS (CHECK CONDITION WHEN MALFUNCTION OCCURRED) AND FREEZE FRAME DATA
- Interview the customer to check the vehicle conditions when the brake system warning light (yellow indicator) illuminated.
- Using the GTS, check for Freeze Frame Data that is recorded when a DTC is stored.
Chassis > Brake/EPB > Trouble Codes
HINT:
Freeze Frame Data is only stored once when a DTC is stored.
Result
Proceed to NEXT
Result:
NEXT
See step 2
- CLEAR DTC
Pre-procedure1
- None
- Clear the DTCs.
Chassis > Brake Booster > Clear DTCs
Chassis > Brake/EPB > Clear DTCs
Result
Proceed to NEXT
Post-procedure1
- Turn the ignition switch off.
Result:
NEXT
See step 3
- CHECK DTC
Pre-procedure1
- Based on the Freeze Frame Data and interview with the customer, attempt to reproduce the conditions when the malfunction occurred.
- Check if the same DTC is output.
Chassis > Brake/EPB > Trouble Codes
Result
Result Proceed to Only C13DC-00 or C13DE-00 is output A C13DC-00 or C13DE-00 and other DTCs are output B
Post-procedure1
- None
Result:
B
REPAIR CIRCUITS INDICATED BY OUTPUT DTCS. Refer to DIAGNOSTIC TROUBLE CODE CHART [11/2020 - 12/2022] , or refer to DIAGNOSTIC TROUBLE CODE CHART [12/2022 - 12/2023] , or refer to DIAGNOSTIC TROUBLE CODE CHART [12/2023 - ]
Result:
A
See step 4
- CHECK DTC
- Check if the same DTC is output.
Chassis > Brake Booster > Trouble Codes
Result
Result Proceed to DTCs are not output A DTCs are output B
Result:
B
REPAIR CIRCUITS INDICATED BY OUTPUT DTCS. Refer to DIAGNOSTIC TROUBLE CODE CHART [11/2020 - 12/2022] , or refer to DIAGNOSTIC TROUBLE CODE CHART [12/2022 - 12/2023] , or refer to DIAGNOSTIC TROUBLE CODE CHART [12/2023 - ]
Result:
A
See step 5
- Check if the same DTC is output.
- CLEAR DTC
Pre-procedure1
- None
- Clear the DTCs.
Chassis > Brake Booster > Clear DTCs
Chassis > Brake/EPB > Clear DTCs
Result
Proceed to NEXT
Post-procedure1
- Turn the ignition switch off.
Result:
NEXT
See step 6
- PERFORM AIR BLEEDING
HINT:
Refer to BLEEDING [11/2020 - ]
Result
Proceed to NEXT Result:
NEXT
See step 7
- CHECK BRAKE ACTUATOR ASSEMBLY (ACTUATOR SIDE)
Pre-procedure1
- Turn the ignition switch off.
- Make sure that there is no looseness at the locking part and the connecting part of the connectors.
OK
The connector is securely connected.
Pre-procedure2
- Disconnect the A6 No. 2 skid control ECU (brake actuator assembly) connector.
- Check both the connector case and the terminals for deformation and corrosion.
OK
No deformation or corrosion.
Result
Proceed to OK NG
Post-procedure1
- None
Result:
NG
REPLACE BRAKE ACTUATOR ASSEMBLY. Refer to REMOVAL [11/2020 - 11/2021] , or refer to REMOVAL [11/2021 - 12/2022] , or refer to REMOVAL [12/2022 - 12/2023] , or refer to REMOVAL [12/2023 - ]
Result:
OK
See step 8
- CHECK HARNESS AND CONNECTOR (VEHICLE SIDE)
Pre-procedure1
- Reconnect the A6 No. 2 skid control ECU (brake actuator assembly) connector.
- Measure the voltage and resistance on the wire harness side.
HINT:
Refer to TERMINALS OF ECU [11/2020 - 12/2023] , or refer to TERMINALS OF ECU [12/2023 - ]
OK
Voltage and resistance readings are all normal.
Result
Proceed to OK NG
Post-procedure1
- None
Result:
NG
REPAIR OR REPLACE HARNESS OR CONNECTOR
Result:
OK
See step 9
- CLEAR DTC
Pre-procedure1
- None
Post-procedure1
- Turn the ignition switch off.
Result:
NEXT
See step 10
- RECONFIRM DTC
Pre-procedure1
- Based on the Freeze Frame Data and interview with the customer, attempt to reproduce the conditions when the malfunction occurred.
- Check if the same DTC is output.
Chassis > Brake/EPB > Trouble Codes
HINT:
If the system returns to normal, it is suspected that a DTC was stored due to a poor connection of a terminal in a connector or foreign matter in a solenoid valve, etc.
Result
Result Proceed to C13DC-00 and C13DE-00 are not output A C13DC-00 or C13DE-00 is output B
Post-procedure1
- None
Result:
A
USE SIMULATION METHOD TO CHECK. Refer to HOW TO PROCEED WITH TROUBLESHOOTING [11/2020 - ]
Result:
B
REPLACE BRAKE ACTUATOR ASSEMBLY. Refer to REMOVAL [11/2020 - 11/2021] , or refer to REMOVAL [11/2021 - 12/2022] , or refer to REMOVAL [12/2022 - 12/2023] , or refer to REMOVAL [12/2023 - ]