Inspection [10/2022 - ]: Procedure
WARNING: This page is about a different car, the 2025 Lexus RX 350, 2024 Lexus RX 350, and 2023 Lexus RX 350. However, it is still accessible from the selected car via links, so may be relevant.
- INSPECT ELECTRIC PARKING BRAKE SWITCH ASSEMBLY (TRAILL MODE SWITCH)
- Measure the resistance according to the value(s) in the table below.
*a Component without harness connected
(Electric Parking Brake Switch Assembly)Standard Resistance
Tester Connection Condition Specified Condition Result 5 (B) - 7 (E) Pressed Below 40 Ω Ω 5 (B) - 7 (E) Not pressed 10 kΩ or higher kΩ If the result is not as specified, replace the electric parking brake switch assembly.
- Measure the resistance according to the value(s) in the table below.
- INSPECT ELECTRIC PARKING BRAKE SWITCH ASSEMBLY (ILLUMINATION)
- Apply battery voltage to the drive mode select switch (combination switch assembly) and check that the switch illuminates.
*a Component without harness connected
(Electric Parking Brake Switch Assembly)OK
Condition Specified Condition Battery positive (+) → Terminal 11 (ILL+)
Battery negative (-) → Terminal 15 (ILL-)Illuminates If the result is not as specified, replace the electric parking brake switch assembly.
- Apply battery voltage to the drive mode select switch (combination switch assembly) and check that the switch illuminates.