DTC C13B8-96: Electric Parking Brake Actuator Component Internal Failure [11/2020 - ]: Procedure

Pre-procedure1

• Turn the ignition switch off.
• Disconnect the A6 No. 2 skid control ECU (brake actuator assembly) connector.
• Disconnect the G71 parking brake actuator assembly with bracket connector.

• Measure the resistance according to the value(s) in the table below.

  Standard Resistance

  Tester Connection	Condition	Specified Condition	Result
  A6-8 (TSEN) - G71-5 (TSEN)	Always	Below 1 Ω	Ω
  A6-40 (TSN2) - G71-10 (TSN2)	Always	Below 1 Ω	Ω
  A6-42 (TGND) - G71-1 (TGND)	Always	Below 1 Ω	Ω
  A6-8 (TSEN) or G71-5 (TSEN) - Body ground	Always	10 kΩ or higher	kΩ
  A6-40 (TSN2) or G71-10 (TSN2) - Body ground	Always	10 kΩ or higher	kΩ
  A6-42 (TGND) or G71-1 (TGND) - Body ground	Always	10 kΩ or higher	kΩ

  Result

  Proceed to
  OK
  NG

Post-procedure1

• None

Result: 

NG 

REPAIR OR REPLACE HARNESS OR CONNECTOR 

Result: 

OK 

See step  2

1. Check the values by referring to the table below.

   Chassis > Brake/EPB > Data List 

   Tester Display	Measurement Item	Range	Normal Condition	Diagnostic Note
   Invalid Tension Sensor Output	Tension sensor output invalid display	Enable / Disable	Enable	-

   Chassis > Brake/EPB > Data List 

   Tester Display
   Invalid Tension Sensor Output

   Result

   Result	Proceed to
   The value of Invalid Tension Sensor Output is Enable	A
   The value of Invalid Tension Sensor Output is Disable	B

Result: 

B 

REPLACE NO. 2 SKID CONTROL ECU (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: 

A 

See step  3

1. Check the values by referring to the table below.

   Chassis > Brake/EPB > Data List 

   Tester Display	Measurement Item	Range	Normal Condition	Diagnostic Note
   Invalid Tension Sensor PWR	Tension sensor power source invalid display	Enable / Disable	Enable	-

   Chassis > Brake/EPB > Data List 

   Tester Display
   Invalid Tension Sensor PWR

   Result

   Result	Proceed to
   The value of Invalid Tension Sensor PWR is Enable	A
   The value of Invalid Tension Sensor PWR is Disable	B

Result: 

B 

REPLACE NO. 2 SKID CONTROL ECU (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: 

A 

See step  4

1. Check the values by referring to the table below.

   Chassis > Brake/EPB > Data List 

   Tester Display	Measurement Item	Range	Normal Condition	Diagnostic Note
   Invalid Tension Sensor Comp	Tension sensor comparison invalid display	Enable / Disable	Enable	-

   Chassis > Brake/EPB > Data List 

   Tester Display
   Invalid Tension Sensor Comp

   Result

   Result	Proceed to
   The value of Invalid Tension Sensor Comp is Enable	A
   The value of Invalid Tension Sensor Comp is Disable	B

Result: 

B 

REPLACE NO. 2 SKID CONTROL ECU (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: 

A 

See step  5

1. Clear the DTCs.

   Chassis > Brake/EPB > Clear DTCs 

   Result

   Proceed to
   NEXT

Result: 

NEXT 

See step  6

1. Check for DTCs.

   Chassis > Brake/EPB > Trouble Codes 

   Result

   Result	Proceed to
   DTCs are output	A
   DTCs are not output	B

Result: 

A 

REPLACE NO. 2 SKID CONTROL ECU (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: 

B 

USE SIMULATION METHOD TO CHECK. Refer to  HOW TO PROCEED WITH TROUBLESHOOTING [11/2020 - ]