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.
Section 59 (Wireless Door Lock Control System (HV, W/ Smart Key) - Diagnostic Codes & Symptom Tests)
2020 Toyota RAV4 XLE, AWDSECTION Section 59 (Wireless Door Lock Control System (HV, W/ Smart Key) - Diagnostic Codes & Symptom Tests)
WARNING: This page is about a different variant/trim than selected.
- WIRELESS DOOR LOCK CONTROL SYSTEM (for HV Model, with Smart Key System)
- DTC B1242: Wireless Door Lock Tuner Circuit Malfunction [11/2018 - 02/2019]
- DTC B1242: Wireless Door Lock Tuner Circuit Malfunction [02/2019 - 10/2022]
- DTC B1242: Wireless Door Lock Tuner Circuit Malfunction [10/2022 - ]
- No Answer-Back [11/2018 - 02/2019]
- No Answer-Back [02/2019 - 12/2021]
- No Answer-Back [12/2021 - 10/2023]
- No Answer-Back [10/2023 - 11/2024]
- No Answer-Back [11/2024 - ]
RENDER: 1.0x
NO RELATED
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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.