Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
2021 Lexus LS 500h AWDFACTORY OEM SERVICE PROCEDURE
Inspection [10/2017 - ]: Procedure
- INSPECT THROTTLE BODY WITH MOTOR ASSEMBLYΒ
- Measure the resistance according to the value(s) in the table below.
Standard Resistance
Tester Connection Condition Specified Condition D9-1 (M-) - D9-2 (M+) 20Β°C (68Β°F) 0.3 to 100 Ξ© *a Component without harness connected
(Throttle Body with Motor Assembly)If the result is not as specified, replace the throttle body with motor assembly.
- Measure the resistance according to the value(s) in the table below.
Factory Service Tools
Use the Manual With the Right Hardware
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- β’ You smell fuel, burning insulation, or see smoke.
- β’ Brakes feel soft, pull hard to one side, or make grinding noises.
- β’ The engine overheats, stalls repeatedly, or misfires under load.
- β’ You are missing required tools, torque specs, or safe lifting equipment.
- β’ You are not confident in the next step or safety outcome.