Inspection [09/2022 - 09/2024]: Procedure
WARNING: This page is about a different car, the 2025 Toyota GR Corolla, 2024 Toyota GR Corolla, and 2023 Toyota GR Corolla. However, it is still accessible from the selected car via links, so may be relevant.
- INSPECT 4WD CONTROL SWITCH (NO. 2 COMBINATION SWITCH ASSEMBLY)
- Inspect the resistance:
- Measure the resistance according to the value(s) in the table below.
Standard Resistance
Tester Connection Switch Condition Specified Condition I179-6 (B) - I179-3 (E) TRACK mode switch being pushed and held 80.36 to 83.64 Ω TRACK mode switch not pushed 10 kΩ or higher REAR mode switch turned and held 580.16 to 603.84 Ω REAR mode switch not turned 10 kΩ or higher FRONT mode switch turned and held 2050.16 to 2133.84 Ω FRONT mode switch not turned 10 kΩ or higher *a Component without harness connected
4WD Control Switch (No. 2 Combination Switch Assembly)HINT:
If the result is not as specified, replace the 4WD control switch (No. 2 combination switch assembly).
- Measure the resistance according to the value(s) in the table below.
- Inspect the illumination:
*a Component without harness connected
4WD Control Switch (No. 2 Combination Switch Assembly)- Apply battery voltage to the integration control and panel assembly (multi-terrain select switch) and check that the switch illuminates.
OK
Condition Specified Condition Auxiliary battery positive (+) → I179-7 (ILL+)
Auxiliary battery negative (-) → I179-2 (ILL-)Illuminates HINT:
If the result is not as specified, replace the 4WD control switch (No. 2 combination switch assembly).
- Apply battery voltage to the integration control and panel assembly (multi-terrain select switch) and check that the switch illuminates.
- Inspect the resistance: