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.
Mic/STRG SW
2018 Acura RLX BaseSECTION Mic/STRG SW
This diagnosis checks whether the microphone is connecting to the telematics control unit or the HandsFreeLink control unit. If Mic and/or STRG SW shows HFL DTCs (B1775 and/or B1776), go to the indicated HFL DTC troubleshooting.
- Press the PICK-UP, the HANG-UP/BACK, and the TALK buttons. This should cause the each indicator on the screen to momentarily turn green. If it does not briefly turn green, go to Audio remote-HFL switch does not work (ODMD (TM) and center switch buttons work) troubleshooting .
- If you check the Mic Level, press the TALK button on the steering wheel, wait until Now Recording! is indicated, and in a normal voice say "testing". The Mic Level indicator on the screen should momentarily turn green. If there is no Mic Level movement when you speak, check for hard error codes .
RENDER: 1.0x
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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.