DTC C0609-62: Electric Parking Brake Switch Signal Compare Failure [11/2020 - 12/2022]: Procedure

Refer to INSPECTION [11/2020 - 12/2022]

Result

Result: 

NG 

REPLACE ELECTRIC PARKING BRAKE SWITCH ASSEMBLY. Refer to  REMOVAL [11/2020 - ] 

Result: 

OK 

See step  2

Pre-procedure1

• Turn the ignition switch off.
• Disconnect the D51 electric parking brake switch assembly connector.
• Disconnect the A6 No. 2 skid control ECU (brake actuator assembly) connector.

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

  Standard Resistance

  Tester Connection	Condition	Specified Condition	Result
  A6-36 (SWI1) - D51-7 (SWI1)	Always	Below 1 Ω	Ω
  A6-31 (SWO1) - D51-8 (SWO1)	Always	Below 1 Ω	Ω
  A6-41 (SWI2) - D51-1 (SWI2)	Always	Below 1 Ω	Ω
  A6-39 (SWO2) - D51-2 (SWO2)	Always	Below 1 Ω	Ω
  A6-36 (SWI1) or D51-7 (SWI1) - Body ground	Always	10 kΩ or higher	kΩ
  A6-31 (SWO1) or D51-8 (SWO1) - Body ground	Always	10 kΩ or higher	kΩ
  A6-41 (SWI2) or D51-1 (SWI2) - Body ground	Always	10 kΩ or higher	kΩ
  A6-39 (SWO2) or D51-2 (SWO2) - 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  3

1. Clear the DTCs.

   Chassis > Brake/EPB > Clear DTCs 

   Result

   Proceed to
   NEXT

Result: 

NEXT 

See step  4

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] 

Result: 

B 

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