Steering Pad Switch Circuit [11/2017 - 01/2023]: Procedure

1. Connect the Techstream to the DLC3.
2. Turn the engine switch on (IG).
3. Turn the Techstream on.
4. Enter the following menus: System Select / Can Bus Check.

   CAN Bus Check 

   Result

   Result	Proceed to
   All of the ECUs and sensors that are currently connected to the CAN communication system are displayed	A
   None of the ECUs and sensors that are currently connected to the CAN communication system are displayed, or some of them are not displayed	B

Result: 

B 

GO TO CAN COMMUNICATION SYSTEM. Refer to  HOW TO PROCEED WITH TROUBLESHOOTING [11/2017 - 03/2019]  , or refer to  HOW TO PROCEED WITH TROUBLESHOOTING [03/2019 - 01/2023] 

Result: 

A 

See step  2

1. Connect the Techstream to the DLC3.
2. Turn the engine switch on (IG).
3. Turn the Techstream on.
4. Enter the following menus: System Select / Health Check.
5. Check DTCs.
6. Turn the engine switch off.

   Result

   Result	Proceed to
   No DTCs are output.	A
   DTCs are output.	B

Result: 

B 

GO TO DTC CHART. Refer to  DIAGNOSTIC TROUBLE CODE CHART [11/2017 - 03/2019]  , or Refer to  DIAGNOSTIC TROUBLE CODE CHART [03/2019 - 01/2023] 

Result: 

A 

See step  3

1. Remove the steering pad switch assembly.

   Refer to REMOVAL [11/2017 - ]

2. Inspect the steering pad switch assembly.

   Refer to INSPECTION [11/2017 - ]

   Result

   Proceed to
   OK
   NG

Result: 

NG 

REPLACE STEERING PAD SWITCH ASSEMBLY. Refer to  COMPONENTS [11/2017 - ] 

Result: 

OK 

See step  4

1. Remove the spiral cable sub-assembly.

   Refer to REMOVAL [11/2017 - 01/2023]

2. Inspect the spiral cable sub-assembly.

   Refer to INSPECTION [11/2017 - ]

   Result

   Proceed to
   OK
   NG

Result: 

NG 

REPLACE SPIRAL CABLE SUB-ASSEMBLY. Refer to  COMPONENTS [11/2017 - 03/2019]  , or refer to  COMPONENTS [03/2019 - 01/2023] 

Result: 

OK 

See step  5

1. Disconnect the O25 spiral cable sub-assembly connector.
2. Disconnect the Q2 driving support ECU assembly connector.
3. Measure the resistance according to the value(s) in the table below.

   Standard Resistance (Check for Open)

   Tester Connection	Condition	Specified Condition
   O25-12 (DIST) - Q2-23 (SPSW)	Always	Below 1 Ω
   O25-2 (ECC) - Body ground	Always	Below 1 Ω

   Standard Resistance (Check for Short)

   Tester Connection	Condition	Specified Condition
   O25-12 (DIST) or Q2-23 (SPSW) - Body ground	Always	10 kΩ or higher

4. Connect the Q2 driving support ECU assembly connector.
5. Connect the O25 spiral cable sub-assembly connector.

   Result

   Proceed to
   OK
   NG

Result: 

OK 

PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE. Refer to  PROBLEM SYMPTOMS TABLE [11/2017 - 03/2019]  , or refer to  PROBLEM SYMPTOMS TABLE [03/2019 - 01/2023] 

Result: 

NG 

REPAIR OR REPLACE HARNESS OR CONNECTOR