Electric Parking Brake AUTO Indicator Light Circuit [02/2017 - ]: Procedure

1. Check if CAN communication system DTCs are output.

   Refer to DIAGNOSIS SYSTEM [02/2017 - 10/2017] , or refer to DIAGNOSIS SYSTEM [10/2017 - 05/2018] , or refer to DIAGNOSIS SYSTEM [05/2018 - 09/2019] , or refer to DIAGNOSIS SYSTEM [09/2019 - 08/2020] , or refer to DIAGNOSIS SYSTEM [08/2020 - 12/2021] , or refer to DIAGNOSIS SYSTEM [12/2021 - ]

   Result

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

Result: 

B 

GO TO CAN COMMUNICATION SYSTEM. Refer to  HOW TO PROCEED WITH TROUBLESHOOTING [02/2017 - 05/2018]  , or refer to  HOW TO PROCEED WITH TROUBLESHOOTING [05/2018 - 09/2019]  , or refer to  HOW TO PROCEED WITH TROUBLESHOOTING [09/2019 - 08/2020]  , or refer to  HOW TO PROCEED WITH TROUBLESHOOTING [08/2020 - ] 

Result: 

A 

See step  2

1. Turn the ignition switch off.
2. Connect the Techstream to the DLC3.
3. Turn the ignition switch to ON and the Techstream on.
4. Enter the following menus: Chassis / Electric Parking Brake / Data List.
5. Check the values by referring to the chart below.

   Chassis > ABS/VSC/TRAC/EPB > Data List 

   Tester Display	Measurement Item	Range	Normal Condition	Diagnostic Note
   Auto Mode	AUTO (shift-linked) mode permission display	OFF or ON	OFF: Manual mode ON: AUTO (shift-linked) mode	-

   Chassis > ABS/VSC/TRAC/EPB > Data List 

   Tester Display
   Auto Mode

6. When switching the mode, check that the Data List display turns on and off.

   Result

   Result	Proceed to
   AUTO indicator light does not illuminate and turn off according to turning Active Test on and off	A
   AUTO indicator light illuminates and turns off according to turning Active Test on and off	B

Result: 

B 

See step  6

Result: 

A 

See step  3

1. Check for DTCs.

   Refer to DTC CHECK / CLEAR [02/2017 - ]

   Chassis > ABS/VSC/TRAC/EPB > Trouble Codes 

   Result

   Result	Proceed to
   DTC is not output	A
   DTC is output	B

Result: 

B 

GO TO DIAGNOSTIC TROUBLE CODE CHART. Refer to  DIAGNOSTIC TROUBLE CODE CHART [02/2017 - 05/2018]  , or refer to  DIAGNOSTIC TROUBLE CODE CHART [05/2018 - ] 

Result: 

A 

See step  4

1. Inspect the electric parking brake switch (electric parking brake switch assembly).

   Refer to INSPECTION [02/2017 - ]

   Result

   Proceed to
   OK
   NG

Result: 

NG 

REPLACE ELECTRIC PARKING BRAKE SWITCH (ELECTRIC PARKING BRAKE SWITCH ASSEMBLY). Refer to  REMOVAL [02/2017 - ] 

Result: 

OK 

See step  5

1. Disconnect the F67 electric parking brake switch (electric parking brake switch assembly) connector.
2. Disconnect the A42 skid control ECU (brake actuator assembly) connector.
3. Measure the resistance according to the value(s) in the chart below.

   Standard Resistance

   Tester Connection	Condition	Specified Condition
   A42-31 (SWI1) - F67-6 (SWI1)	Always	Below 5 Ω
   A42-32 (SWO1) - F67-5 (SWO1)	Always	Below 5 Ω
   A42-15 (SWI2) - F67-4 (SWI2)	Always	Below 5 Ω
   A42-16 (SWO2) - F67-3 (SWO2)	Always	Below 5 Ω
   A42-31 (SWI1) or F67-6 (SWI1) - Body ground	Always	10 kΩ or higher
   A42-32 (SWO1) or F67-5 (SWO1) - Body ground	Always	10 kΩ or higher
   A42-15 (SWI2) or F67-4 (SWI2) - Body ground	Always	10 kΩ or higher
   A42-16 (SWO2) or F67-3 (SWO2) - Body ground	Always	10 kΩ or higher

   Result

   Proceed to
   OK
   NG

Result: 

NG 

REPAIR OR REPLACE HARNESS OR CONNECTOR 

Result: 

OK 

See step  6

1. Turn the ignition switch off.
2. Connect the Techstream to the DLC3.
3. Turn the ignition switch to ON.
4. Turn the Techstream on.
5. Enter the following menus: Chassis / Electric Parking Brake / Data List.
6. Read the Data List according to the display on the Techstream.

   Refer to DATA LIST / ACTIVE TEST [02/2017 - ]

   Chassis > ABS/VSC/TRAC/EPB > Active Test 

   Tester Display	Measurement Item	Control Range	Diagnostic Note
   Auto Mode	AUTO (shift-linked) mode	ON or OFF	Vehicle stopped Ignition switch ON

   Chassis > ABS/VSC/TRAC/EPB > Active Test 

   Tester Display
   Auto Mode

7. Select the Data List on the Techstream.

   Chassis > ABS/VSC/TRAC/EPB > Data List 

   Tester Display	Measurement Item	Range	Normal Condition	Diagnostic Note
   Auto Mode	AUTO (shift-linked) mode permission display	ON or OFF	ON: AUTO (shift-linked) mode OFF: Manual mode	-

   Chassis > ABS/VSC/TRAC/EPB > Data List 

   Tester Display
   Auto Mode

8. Perform the Auto Mode Active Test, and check that the Data List display changes.

   Result

   Result	Proceed to
   Check the operating condition of the "Auto Mode" when operating it using the Techstream.	A
   "Auto Mode" in the Data List turns ON/OFF using the Active Test.	B

Result: 

A 

REPLACE SKID CONTROL ECU (BRAKE ACTUATOR ASSEMBLY). Refer to  REMOVAL [02/2017 - 09/2019]  , or refer to  REMOVAL [09/2019 - 08/2020]  , or refer to  REMOVAL [08/2020 - 12/2021]  , or refer to  REMOVAL [12/2021 - ] 

Result: 

B 

See step  7

1. Perform the Active Test of the combination meter assembly using the Techstream. (for CVT)

   Refer to DATA LIST / ACTIVE TEST [02/2017 - 10/2017] , or refer to DATA LIST / ACTIVE TEST [10/2017 - 05/2018] , or refer to DATA LIST / ACTIVE TEST [05/2018 - 09/2019] , or refer to DATA LIST / ACTIVE TEST [09/2019 - 08/2020] , or refer to DATA LIST / ACTIVE TEST [08/2020 - ]

   Body Electrical > Combination Meter > Active Test 

   Tester Display
   Meter Display 1

2. Check the multi-information display the combination meter assembly turn ON or OFF in accordance with the Techstream operation.

   OK

   The message in the multi-information display appears and disappears in accordance with the Active Test operation.

   Result

   Proceed to
   OK
   NG

Result: 

OK 

REPLACE SKID CONTROL ECU (BRAKE ACTUATOR ASSEMBLY). Refer to  REMOVAL [02/2017 - 09/2019]  , or refer to  REMOVAL [09/2019 - 08/2020]  , or refer to  REMOVAL [08/2020 - 12/2021]  , or refer to  REMOVAL [12/2021 - ] 

Result: 

NG 

GO TO METER / GAUGE SYSTEM. Refer to  HOW TO PROCEED WITH TROUBLESHOOTING [02/2017 - ]