Inspection [09/2020 - ]: Procedure
WARNING: This page does not describe the selected car, but rather 20 other vehicles, including the 2024 Lexus IS 350, 2024 Lexus IS 300, 2023 Lexus IS 350, 2023 Lexus IS 300, and 2022 Lexus IS 350. However, it is still accessible from the selected car via links, so may be relevant.
- INSPECT COMBINATION SWITCH ASSEMBLY
- Inspect the Eco mode switch:
- Measure the resistance according to the value(s) in the table below.
*a Component without harness connected
(Combination Switch Assembly)Standard Resistance
Tester Connection Condition Specified Condition 11 (ECO) - 16 (E) Combination switch assembly knob turned and held at Eco position Below 50 Ω Combination switch assembly knob not turned to Eco position 1 MΩ or higher If the result is not as specified, replace the combination switch assembly.
- Measure the resistance according to the value(s) in the table below.
- Inspect the Normal or Normal/Custom mode switch:
- Measure the resistance according to the value(s) in the table below.
*a Component without harness connected
(Combination Switch Assembly)Standard Resistance
Tester Connection Condition Specified Condition 9 (NORM) - 16 (E) Combination switch assembly knob pushed and held Below 50 Ω Combination switch assembly knob not pushed 1 MΩ or higher If the result is not as specified, replace the combination switch assembly.
- Measure the resistance according to the value(s) in the table below.
- Inspect the Sport or Sport S/S+ mode switch:
- Measure the resistance according to the value(s) in the table below.
*a Component without harness connected
(Combination Switch Assembly)Standard Resistance
Tester Connection Condition Specified Condition 10 (PWR) - 16 (E) Combination switch assembly knob turned and held at Sport or Sport S/S+ position Below 50 Ω Combination switch assembly knob not turned to Sport or Sport S/S+ position 1 MΩ or higher If the result is not as specified, replace the combination switch assembly.
- Measure the resistance according to the value(s) in the table below.
- Inspect the SNOW mode switch:
- Measure the resistance according to the value(s) in the table below.
*a Component without harness connected
(Combination Switch Assembly)Standard Resistance
Tester Connection Condition Specified Condition 3 (SNSW) - 16 (E) SNOW mode switch pushed and held Below 50 Ω SNOW mode switch not pushed 1 MΩ or higher If the result is not as specified, replace the combination switch assembly.
- Measure the resistance according to the value(s) in the table below.
- Inspect the VSC OFF switch:
- Measure the resistance according to the value(s) in the table below.
*a Component without harness connected
(Combination Switch Assembly)Standard Resistance
Tester Connection Condition Specified Condition 1 (+) - 16 (E) VSC OFF switch pushed and held Below 50 Ω VSC OFF switch not pushed 1 MΩ or higher If the result is not as specified, replace the combination switch assembly.
- Measure the resistance according to the value(s) in the table below.
- Inspect the BRAKE HOLD switch:
- Measure the resistance according to the value(s) in the table below.
*a Component without harness connected
(Combination Switch Assembly)Standard Resistance
Tester Connection Condition Specified Condition 14 (+B) - 16 (E) BRAKE HOLD switch pushed and held Below 50 Ω BRAKE HOLD switch not pushed 1 MΩ or higher If the result is not as specified, replace the combination switch assembly.
- Measure the resistance according to the value(s) in the table below.
- Check the illumination:
- Apply battery voltage between the terminals of the switch, and check the illumination condition of the combination switch assembly.
*a Component without harness connected
(Combination Switch Assembly)*b Illumination Standard
Measurement Condition Specified Condition Battery positive (+) → 5 (ILL+)
Battery negative (-) → 8 (ILL-)Illuminates If the result is not as specified, replace the combination switch assembly.
- Apply battery voltage between the terminals of the switch, and check the illumination condition of the combination switch assembly.
- Inspect the Eco mode switch: