Steering Pad Switch Circuit [06/2018 - 01/2019]: Procedure
WARNING: This page is about a different car, the 2022 Toyota Corolla, 2021 Toyota Corolla, 2020 Toyota Corolla, and 2019 Toyota Corolla. However, it is still accessible from the selected car via links, so may be relevant.
- INSPECT STEERING PAD SWITCH ASSEMBLY
- Remove the steering pad switch assembly.
Refer to REMOVAL [06/2018 - 01/2019]
- Inspect the steering pad switch assembly.
Refer to INSPECTION [06/2018 - 01/2019]
Result
Proceed to OK NG
Result:
NG
REPLACE STEERING PAD SWITCH ASSEMBLY. Refer to COMPONENTS [06/2018 - ]
Result:
OK
See step 2
- Remove the steering pad switch assembly.
- INSPECT SPIRAL CABLE SUB-ASSEMBLY
- Remove the spiral cable sub-assembly.
Refer to REMOVAL [06/2018 - 01/2019]
- Inspect the spiral cable sub-assembly.
Refer to INSPECTION [06/2018 - ]
Result
Proceed to OK NG
Result:
NG
REPLACE SPIRAL CABLE SUB-ASSEMBLY. Refer to COMPONENTS [06/2018 - ]
Result:
OK
See step 3
- Remove the spiral cable sub-assembly.
- CHECK HARNESS AND CONNECTOR (SPIRAL CABLE SUB-ASSEMBLY - FORWARD RECOGNITION CAMERA)
- Disconnect the I82 spiral cable sub-assembly connector.
- Disconnect the T9 forward recognition camera connector.
- Measure the resistance according to the value(s) in the table below.
Standard Resistance
Tester Connection Condition Specified Condition I82-6 (DIST) - T9-3 (LKSW) Always Below 1 Ω I82-6 (DIST) or T9-3 (LKSW) - Body ground Always 10 kΩ or higher - Connect the T9 forward recognition camera connector.
- Connect the I82 spiral cable sub-assembly connector.
Result
Proceed to OK NG
Result:
NG
REPAIR OR REPLACE HARNESS OR CONNECTOR
Result:
OK
See step 4
- CHECK HARNESS AND CONNECTOR (SPIRAL CABLE SUB-ASSEMBLY - ECM)
- Disconnect the I82 spiral cable sub-assembly connector.
- Disconnect the A47 ECM connector.
- Measure the resistance according to the value(s) in the table below.
Standard Resistance
Tester Connection Condition Specified Condition I82-2 (ECC) - A47-28 (ECCS) Always Below 1 Ω I82-2 (ECC) or A47-28 (ECCS) - Body ground Always 10 kΩ or higher - Connect the A47 ECM connector.
- Connect the I82 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 [06/2018 - 09/2022]
Result:
NG
REPAIR OR REPLACE HARNESS OR CONNECTOR