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.
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HOMESERVICE MANUALSTOYOTA2018SIENNA SE PREMIUMREPAIR AND DIAGNOSISACCESSORIES & EQUIPMENTINFOTAINMENTNAVIGATION SYSTEM - DIAGNOSTIC CODES & SYMPTOM TESTS
2018 Toyota Sienna SE Premium
Navigation System - Diagnostic Codes & Symptom Tests
2018 Toyota Sienna SE PremiumSECTION Navigation System - Diagnostic Codes & Symptom Tests
- Navigation System
- Diagnostic Codes
- DTC B1324: Lost Communication with Meter [12/2015 - 11/2017]
- DTC B1324: Lost Communication with Meter [11/2017 - ]
- DTC B1532: LVDS Signal Malfunction (from Extension Module) [12/2015 - 11/2017]
- DTC B153A: GVIF Disconnected (from Extension Module to H/U) [11/2017 - ]
- DTC B1543: Extension Module Disconnected 2 [11/2017 - ]
- DTC B1551: HD Radio Tuner Malfunction; DTC B15A0: LAN Master Malfunction; DTC B15AD: Navigation Processor Malfunction; DTC B15B0: Display Screen Malfunction; DTC B15B3: Radio Tuner Malfunction; DTC B15B4: CD Changer Malfunction; DTC B15B7: Bluetooth Module Malfunction [12/2015 - 11/2017]
- DTC B1551: HD Radio Tuner Malfunction; DTC B158D: Video Signal Stoppage; DTC B15A0: LAN Master Malfunction; DTC B15AD: Navigation Processor Malfunction; DTC B15B0: Display Screen Malfunction; DTC B15B3: Radio Tuner Malfunction; DTC B15B4: CD Changer Malfunction; DTC B15B7: Bluetooth Module Malfunction [11/2017 - ]
- DTC B1556: Extension Module Malfunction 2 [11/2017 - ]
- DTC B156C: Extension Module Disconnected [12/2015 - 11/2017]
- DTC B1579: Voice Recognition Microphone Disconnected [12/2015 - 11/2017]
- DTC B1579: Voice Recognition Microphone Disconnected [11/2017 - 08/2018]
- DTC B1579: Voice Recognition Microphone Disconnected [08/2018 - ]
- DTC B1585: USB Media Malfunction [12/2015 - 11/2017]
- DTC B1585: USB Device Malfunction [11/2017 - ]
- DTC B158C: SD Card Communication Malfunction [12/2015 - 11/2017]
- DTC B158F: AV Signal Stoppage (Low Battery Voltage) [12/2015 - 11/2017]
- DTC B158F: AV Signal Stoppage (Low Battery Voltage) [11/2017 - ]
- DTC B15A3: Stereo Component Amplifier Malfunction [12/2015 - 11/2017]
- DTC B15A3: Stereo Component Amplifier Malfunction [11/2017 - ]
- DTC B15AD: Navigation Processor Malfunction [11/2017 - ]
- DTC B15BA: XM Tuner Malfunction [12/2015 - 11/2017]
- DTC B15C0: Short in GPS Antenna; DTC B15C1: Open in GPS Antenna [12/2015 - 11/2017]
- DTC B15C0: GPS Antenna Connection Malfunction(short); DTC B15C1: GPS Antenna Connection Malfunction(break) [11/2017 - ]
- DTC B15C2: Speed Signal Malfunction [12/2015 - 11/2017]
- DTC B15C2: Speed Signal Malfunction [11/2017 - ]
- DTC B15C3: Speaker Output Short [12/2015 - 11/2017]
- DTC B15C3: Speaker Output Short [11/2017 - ]
- DTC B15D3: Stereo Component Amplifier Disconnected [12/2015 - 11/2017]
- DTC B15D3: Stereo Component Amplifier Disconnected [11/2017 - ]
- DTC B15DB: Telematics Transceiver Disconnected [11/2017 - ]
- DTC B15E5: Electric Throttle Malfunction [11/2017 - ]
- DTC B15F5: A/C ECU Vehicle Information Reading/Writing Processor Malfunction [12/2015 - 11/2017]
- DTC B15F5: A/C ECU Vehicle Information Reading/Writing Processor Malfunction [11/2017 - ]
- DTC B15F6: Main Body ECU Vehicle Information Reading/Writing Process Malfunction [12/2015 - 11/2017]
- DTC B15F6: Main Body ECU Vehicle Information Reading/Writing Process Malfunction [11/2017 - ]
- DTC B15F7: Certification ECU Vehicle Information Reading/Writing Process Malfunction [12/2015 - 11/2017]
- DTC B15F7: Certification ECU Vehicle Information Reading/Writing Process Malfunction [11/2017 - ]
- DTC B15FE: XM Tuner Antenna Disconnected; DTC B15FF: XM Tuner Antenna Short [12/2015 - 11/2017]
- DTC B15FE: XM Tuner Antenna Disconnected; DTC B15FF: XM Tuner Antenna Short [11/2017 - ]
- DTC C1610: Camera ECU Malfunction [11/2017 - ]
- DTC U0073: Sending Malfunction (Navigation to APGS); DTC U0140: Lost Communication with Body Control Module; DTC U0155: Meter ECU Communication; DTC U0164: Air Conditioner ECU Communication [12/2015 - 11/2017]
- DTC U0073: Sending Malfunction (Navigation to APGS); DTC U0100: Lost Communication with ECM; DTC U0140: Lost Communication with Body Control Module; DTC U0155: Meter ECU Communication; DTC U0164: Air Conditioner ECU Communication; DTC U0198: Lost Communication with Telematic Control Module; DTC U0265: Lost Communication with Parking Assist Monitor Module; DTC U1110: Clearance Sonar ECU Communication [11/2017 - ]
- Symptom Tests
- Satellite Radio Broadcast cannot be Received [12/2015 - 11/2017]
- Satellite Radio Broadcast cannot be Received [11/2017 - ]
- Satellite Radio Broadcast cannot be Selected or After Selecting Broadcast, Broadcast cannot be Added into Memory [12/2015 - ]
- Traffic Information is not Displayed [12/2015 - 11/2017]
- Weather and traffic information cannot be obtained [11/2017 - ]
- Noise Occurs [12/2015 - ]
- No Sound can be Heard from Speakers [12/2015 - ]
- Sound Quality is Bad Only when CD is Played (Volume is Too Low) [12/2015 - 11/2017]
- Sound Quality is Bad Only when CD is Played (Volume is Too Low) [11/2017 - ]
- CD cannot be Ejected [12/2015 - 11/2017]
- CD cannot be Ejected [11/2017 - ]
- CD cannot be Inserted or is Ejected Right After Insertion [12/2015 - 11/2017]
- CD cannot be Inserted or is Ejected Right After Insertion [11/2017 - ]
- CD Sound Skips [12/2015 - 11/2017]
- CD Sound Skips [11/2017 - ]
- Radio Broadcast cannot be Received or Poor Reception [12/2015 - 11/2017]
- Radio Broadcast cannot be Received or Poor Reception [11/2017 - ]
- Illumination for Panel Switch does not Come on with Tail Switch ON [12/2015 - 11/2017]
- Illumination for Panel Switch does not Come on with Tail Switch ON [11/2017 - ]
- Display does not Dim when Light Control Switch is Turned ON [12/2015 - 11/2017]
- Display does not Dim when Light Control Switch is Turned ON [11/2017 - ]
- Panel Switches do not Function [12/2015 - 11/2017]
- Panel Switches do not Function [11/2017 - ]
- Touch Panel Switch does not Function [12/2015 - 11/2017]
- Touch Panel Switch does not Function [11/2017 - ]
- Screen Flicker or Color Distortion [12/2015 - ]
- Poor Sound Quality in All Modes (Low Volume) [12/2015 - ]
- Cursor or Map Rotates when Vehicle Stopped [12/2015 - ]
- "No GPS signal" mark is displayed [11/2017 - ]
- Diagnostic Codes
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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.