Steering Pad Switch Circuit [08/2020 - 12/2021]: Procedure

1. Remove the steering pad switch assembly.

   Refer to REMOVAL [08/2020 - 12/2021]

2. Inspect the steering pad switch assembly.

   Refer to INSPECTION [08/2020 - ]

   Result

   Proceed to
   OK
   NG

Result: 

NG 

REPLACE STEERING PAD SWITCH ASSEMBLY. Refer to  REMOVAL [08/2020 - 12/2021] 

Result: 

OK 

See step  2

1. Remove the spiral cable sub-assembly.

   Refer to REMOVAL [08/2020 - 12/2021]

2. Inspect the spiral cable sub-assembly.

   Refer to INSPECTION [08/2020 - ]

   Result

   Proceed to
   OK
   NG

Result: 

NG 

REPLACE SPIRAL CABLE SUB-ASSEMBLY. Refer to  REMOVAL [08/2020 - 12/2021] 

Result: 

OK 

See step  3

1. Disconnect the G20 spiral cable sub-assembly connector.
2. Disconnect the P8 forward recognition camera connector.
3. Measure the resistance according to the value (s) in the table below.

   Standard Resistance

   Tester Connection	Condition	Specified Condition
   G20-6 (DIST) - P8-3 (LKSW)	Always	Below 1 Ω

4. Connect the G20 spiral cable sub-assembly connector.
5. Connect the P8 forward recognition camera connector.

   Result

   Result	Proceed to
   OK (for HV Model)	A
   OK (for Gasoline Model)	B
   NG	C

Result: 

B 

See step  5

Result: 

C 

REPAIR OR REPLACE HARNESS OR CONNECTOR 

Result: 

A 

See step  4

1. Disconnect the spiral cable sub-assembly connector.

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

   *a	Front view of wire harness connector (to Spiral Cable Sub-assembly)

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

   Standard Resistance

   Tester Connection	Condition	Specified Condition
   G20-2 (ECC) - Body ground	Always	Below 1 Ω

3. Connect the 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 [11/2018 - 12/2021] 

Result: 

NG 

REPAIR OR REPLACE HARNESS OR CONNECTOR 

1. Disconnect the G20 spiral cable sub-assembly connector.
2. Disconnect the A24 ECM connector.
3. Measure the resistance according to the value (s) in the table below.

   Standard Resistance

   Tester Connection	Condition	Specified Condition
   G20-2 (ECC) - A24-28 (ECCS)	Always	Below 1 Ω

4. Connect the G20 spiral cable sub-assembly connector.
5. Connect the A24 ECM connector.

   Result

   Proceed to
   OK
   NG

Result: 

OK 

PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE. Refer to  PROBLEM SYMPTOMS TABLE [11/2018 - 12/2021] 

Result: 

NG 

REPAIR OR REPLACE HARNESS OR CONNECTOR