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.
2013 Lexus IS 350C BaseFACTORY OEM SERVICE PROCEDURE
AUDIO AND VISUAL SYSTEM (w/ Multi-display)
AUDIO AND VISUAL SYSTEM (W/ MULTI-DISPLAY) DIAGNOSTIC TROUBLE CODE (DTC) IDENTIFICATION
| DTC Code | Description |
|---|---|
| B156A | Gateway Disconnected |
| B1575 | GVIF Disconnected (from EMV/MM Integrated Device to Multi Display) |
| B1579 | Voice Recognition Microphone Disconnected |
| B1585 | USB Device Malfunction |
| B15A0 | LAN Master Malfunction |
| B15A3 | Stereo Component Amplifier Malfunction |
| B15A6 | Display Malfunction |
| B15B0 | Display Screen Malfunction |
| B15B3 | Radio Tuner Malfunction |
| B15B5 | DVD Changer Malfunction |
| B15B7 | Bluetooth Module Malfunction |
| B15B8 | Harddisk Malfunction |
| B15C3 | Speaker Output Short |
| B15D0 | MOST Communication Malfunction |
| B15D3 | Stereo Component Amplifier Disconnected |
| B15D6 | Display Disconnected |
| B15E7 | Harddisk Reading/Writing Malfunction(Low Temperature) |
| B15E8 | Harddisk Reading/Writing Malfunction(High Temperature) |
| U0073 | Sending Malfunction (Navigation to APGS) |
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:
- • 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.
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