LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> Toyota >> 2011 >> Avalon Base >> Repair and Diagnosis (Single Page) >> Accessories & Equipment >> Infotainment >> Navigation System (Diagnostics - Introduction) >> Navigation System >> Diagnostic Trouble Code Chart (To 12/2010) >> Diagnostic Trouble Code Chart
April 5, 2026: LEMON Manuals is launched! Read the announcement.

Diagnostic Trouble Code Chart

NAVIGATION SYSTEM

DTC Code Detection Item Trouble Area See
B1561 XM Tuner Disconnected (Command Line) 1. Stereo component tuner assembly power source circuit
2. AVC-LAN circuit between navigation receiver assembly and stereo component tuner assembly
3. Navigation receiver assembly
4. Multi-media interface ECU
5. Stereo component tuner assembly
Refer to DTC B1561: XM Tuner Disconnected (Command Line); DTC B159F: No Response from XM Tuner
B1562 XM Tuner Disconnected (Burst Mode) 1. AVC-LAN plus circuit between navigation receiver assembly and stereo component tuner assembly
2. Stereo component tuner assembly
3. Navigation receiver assembly
Refer to DTC B1562: XM Tuner Disconnected (Burst Mode)
B156B Multi-media Interface ECU Disconnected 1. Multi-media interface ECU power source circuit
2. AVC-LAN circuit between navigation receiver assembly and multi-media interface ECU
3. Navigation receiver assembly
4. Multi-media interface ECU
Refer to DTC B156B: Multi-media Interface ECU Disconnected; DTC B156E: No Response from Multi-media Interface ECU
B156E No Response from Multi-media Interface ECU 1. Multi-media interface ECU power source circuit
2. AVC-LAN circuit between navigation receiver assembly and multi-media interface ECU
3. Navigation receiver assembly
4. Multi-media interface ECU
Refer to DTC B156B: Multi-media Interface ECU Disconnected; DTC B156E: No Response from Multi-media Interface ECU
B1582 Map Disk Reading Malfunction 1. Map disc
2. Navigation receiver assembly
Refer to DTC B1582: Map Disk Reading Malfunction
B1585 USB Media Malfunction 1. USB device or "iPod"
2. Multi-media interface ECU
Refer to DTC B1585: USB Media Malfunction
B1593 No Response from Stereo Component Amplifier 1. Stereo component amplifier assembly power source circuit
2. AVC-LAN circuit between navigation receiver assembly and stereo component amplifier assembly
3. Navigation receiver assembly
4. Stereo component amplifier assembly
Refer to DTC B1593: No Response from Stereo Component Amplifier; DTC B15D3: Stereo Component Amplifier Disconnected
B159F No Response from XM Tuner 1. Stereo component tuner assembly power source circuit
2. AVC-LAN circuit between navigation receiver assembly and stereo component tuner assembly
3. Navigation receiver assembly
4. Multi-media interface ECU
5. Stereo component tuner assembly
Refer to DTC B1561: XM Tuner Disconnected (Command Line); DTC B159F: No Response from XM Tuner
B15A0 LAN Master Malfunction Navigation receiver assembly Refer to DTC B15A0: LAN Master Malfunction; DTC B15AD: Navigation Processor Malfunction; DTC B15B3: Radio Tuner Malfunction; DTC B15B4: CD Changer Malfunction; DTC B15B7: Bluetooth Module Malfunction
B15A3 Stereo Component Amplifier Malfunction Stereo component amplifier assembly Refer to DTC B15A3: Stereo Component Amplifier Malfunction
B15AD Navigation Processor Malfunction Navigation receiver assembly Refer to DTC B15A0: LAN Master Malfunction; DTC B15AD: Navigation Processor Malfunction; DTC B15B3: Radio Tuner Malfunction; DTC B15B4: CD Changer Malfunction; DTC B15B7: Bluetooth Module Malfunction
B15B0 Display Screen Malfunction Navigation receiver assembly Refer to DTC B15B0: Display Screen Malfunction
B15B3 Radio Tuner Malfunction Navigation receiver assembly Refer to DTC B15A0: LAN Master Malfunction; DTC B15AD: Navigation Processor Malfunction; DTC B15B3: Radio Tuner Malfunction; DTC B15B4: CD Changer Malfunction; DTC B15B7: Bluetooth Module Malfunction
B15B4 CD Changer Malfunction Navigation receiver assembly Refer to DTC B15A0: LAN Master Malfunction; DTC B15AD: Navigation Processor Malfunction; DTC B15B3: Radio Tuner Malfunction; DTC B15B4: CD Changer Malfunction; DTC B15B7: Bluetooth Module Malfunction
B15B7 Bluetooth Module Malfunction Navigation receiver assembly Refer to DTC B15A0: LAN Master Malfunction; DTC B15AD: Navigation Processor Malfunction; DTC B15B3: Radio Tuner Malfunction; DTC B15B4: CD Changer Malfunction; DTC B15B7: Bluetooth Module Malfunction
B15BA XM Tuner Malfunction Stereo component tuner assembly Refer to DTC B15BA: XM Tuner Malfunction
B15BB Multi-media Interface ECU Malfunction 1. "iPod" or USB device
2. Harness or connector between multi-media interface ECU and No. 1 stereo jack adapter assembly
3. No. 1 stereo jack adapter assembly
4. Multi-media interface ECU
Refer to DTC B15BB: Multi-media Interface ECU Malfunction
B15C0 Short in GPS Antenna 1. Wire harness
2. Navigation antenna assembly
3. Navigation receiver assembly
Refer to DTC B15C0: Short in GPS Antenna; DTC B15C1: Open in GPS Antenna
B15C1 Open in GPS Antenna 1. Wire harness
2. Navigation antenna assembly
3. Navigation receiver assembly
Refer to DTC B15C0: Short in GPS Antenna; DTC B15C1: Open in GPS Antenna
B15C2 Speed Signal Malfunction 1. Combination meter assembly
2. Wire harness or connector
3. Navigation receiver assembly
Refer to DTC B15C2: Speed Signal Malfunction
B15D3 Stereo Component Amplifier Disconnected 1. Stereo component amplifier assembly power source circuit
2. AVC-LAN circuit between navigation receiver assembly and stereo component amplifier assembly
3. Navigation receiver assembly
4. Stereo component amplifier assembly
Refer to DTC B1593: No Response from Stereo Component Amplifier; DTC B15D3: Stereo Component Amplifier Disconnected
B15DF USB Communication Malfunction 1. USB device or "iPod"
2. Multi-media interface ECU
3. Connection cable
Refer to DTC B15DF: USB Communication Malfunction
B15E1 Media Malfunction 1. CD
2. Navigation receiver assembly
Refer to DTC B15E1: Media Malfunction
B15FE XM Tuner Antenna Disconnected 1. Satellite radio antenna assembly
2. Stereo component tuner assembly
Refer to DTC B15FE: XM Tuner Antenna Disconnected; DTC B15FF: XM Tuner Antenna Short
B15FF XM Tuner Antenna Short 1. Satellite radio antenna assembly
2. Stereo component tuner assembly
Refer to DTC B15FE: XM Tuner Antenna Disconnected; DTC B15FF: XM Tuner Antenna Short
U0073 Control Module Communication Bus Off CAN communication system Refer to DTC U0073: Control Module Communication Bus Off