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 RC 350 Base, AWDFACTORY OEM SERVICE PROCEDURE
Engine Control System (2GR-FKS) - Diagnostics - Introduction (1 Of 4)
- SFI System
- Precaution [11/2017 - 10/2018]
- Precaution [10/2018 - 10/2022]
- Precaution [10/2022 - ]
- Definition Of Terms [11/2017 - ]
- Parts Location [11/2017 - 09/2020]
- Parts Location [09/2020 - ]
- System Diagram [11/2017 - 09/2020]
- System Diagram [09/2020 - ]
- How To Proceed With Troubleshooting [11/2017 - ]
- Check For Intermittent Problems [11/2017 - ]
- Basic Inspection [11/2017 - ]
- Registration [11/2017 - ]
- Initialization [11/2017 - 10/2018]
- Initialization [10/2018 - 09/2020]
- Initialization [09/2020 - ]
- Checking Monitor Status [11/2017 - ]
- Readiness Monitor Drive Pattern [11/2017 - 10/2018]
- Readiness Monitor Drive Pattern [10/2018 - ]
- Problem Symptoms Table [11/2017 - ]
- Terminals Of ECM [11/2017 - 09/2020]
- Terminals Of ECM [09/2020 - ]
- Diagnosis System [11/2017 - ]
- DTC Check / Clear [11/2017 - ]
- Freeze Frame Data [11/2017 - 10/2018]
- Freeze Frame Data [10/2018 - 09/2020]
- Freeze Frame Data [09/2020 - ]
- Check Mode Procedure [11/2017 - ]
- Fail-Safe Chart [11/2017 - 10/2018]
- Fail-Safe Chart [10/2018 - 09/2020]
- Fail-Safe Chart [09/2020 - ]
Factory Service Tools
Use the Manual With the Right Hardware
Pair factory procedures with proven DIY tools so the instructions are easier to execute.
Disclosure: Verified tool recommendations may earn an affiliate commission at no cost to you.
When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.