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 LS 600hLFACTORY 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 |
| 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 |
| U0293 | Lost Communication with HV 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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