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.
2014 Lexus LS 460 Base, AWDFACTORY OEM SERVICE PROCEDURE
Navigation System
NAVIGATION SYSTEM DIAGNOSTIC TROUBLE CODE (DTC) IDENTIFICATION
| DTC Code | Description |
|---|---|
| B1321 | Lost Communication with EMV |
| B1322 | Lost Communication with Display |
| B1323 | Lost Communication with Haptic Device |
| B1563 | Haptic Device Disconnected |
| B1568 | Clock Device Disconnected |
| B1575 | GVIF Disconnected (from EMV/MM Integrated Device to Multi Display) |
| B1579 | Voice Recognition Microphone Disconnected |
| B15A0 | LAN Master Malfunction |
| B15A3 | Stereo Component Amplifier Malfunction |
| B15A6 | Display Malfunction |
| B15AD | Navigation Processor Malfunction |
| B15AF | Remote Touch Malfunction |
| B15B0 | Display Screen Malfunction |
| B15B7 | Bluetooth Module Malfunction |
| B15B8 | Harddisk Malfunction |
| B15BA | XM Tuner Malfunction |
| B15C0 | Short in GPS Antenna |
| B15C1 | Open in GPS Antenna |
| B15C2 | Speed Signal Malfunction |
| B15D0 | MOST Communication Malfunction |
| B15D3 | Stereo Component Amplifier Disconnected |
| B15D5 | Rear Seat Entertainment System Disconnected |
| B15D6 | Display Disconnected |
| B15DA | Rear Console Recognition Disconnected |
| B15E5 | Electric Throttle Malfunction |
| B15E7 | Harddisk Reading/Writing Malfunction(Low Temperature) |
| B15E8 | Harddisk Reading/Writing Malfunction(High Temperature) |
| B15F5 | A/C ECU Vehicle Information Reading/Writing Processor Malfunction |
| B15F6 | Main Body ECU Vehicle Information Reading/Writing Process Malfunction |
| B15F7 | Certification ECU Vehicle Information Reading/Writing Process Malfunction |
| B15F8 | Driver Seat ECU Vehicle Information Reading/Writing Process Malfunction |
| U0073 | Sending Malfunction (Navigation to APGS) |
| U0100 | Engine ECU Communication |
| U0126 | Steering Sensor Communication |
| U0129 | VSC(ECB)ECU Communication |
| U0130 | Lost Communication with VGRS |
| U0131 | Lost Communication with Electric Power Steering ECU |
| U0132 | Air Suspension ECU Communication |
| U0140 | Lost Communication with Body Control Module |
| U0155 | Meter ECU Communication |
| U0182 | Lost Communication with AFS ECU |
| U1110 | Clearance Sonar ECU Communication |
Factory Service Tools
Use the Manual With the Right Hardware
Pair factory procedures with proven DIY tools so the instructions are easier to execute.
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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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