DESCRIPTION
This DTC is stored when a communication error occurs between the radio receiver assembly and combination meter assembly.
| DTC No. | Detection Item | DTC Detection Condition | Trouble Area |
|---|---|---|---|
| B1324 | Lost Communication with Meter | After the radio receiver assembly receives a registration information signal, which is sent by the combination meter assembly when the engine switch is on (ACC), 1 or more times, the radio receiver assembly cannot receive the signal for 30 seconds or more | Combination meter assembly Radio receiver assembly Harness or connector |
Scheme 63
These DTCs are stored when a malfunction occurs in the radio receiver assembly.
| DTC No. | Detection Item | DTC Detection Condition | Trouble Area |
|---|---|---|---|
| B1551 | HD Radio Tuner Malfunction | When one of the conditions below is met: "HD Radio" tuner decoder malfunction "HD Radio" tuner audio output section malfunction "HD Radio" tuner decoder RF/IF malfunction | Radio receiver assembly |
| B15A0 | LAN Master Malfunction | When either condition below is met: Bus malfunction EEPROM error | Radio receiver assembly |
| B15B3 | Radio Tuner Malfunction | When one of the conditions below is met: AM tuner PLL is unlocked FM tuner PLL is unlocked Tuner malfunction | Radio receiver assembly |
| B15B4 | CD Changer Malfunction | When one of the conditions below is met: Mechanism drive signal malfunction Load/Eject malfunction Read mechanism malfunction Mechanical malfunction | Radio receiver assembly |
| B15B7 | Bluetooth Module Malfunction | "Bluetooth" module malfunction | Radio receiver assembly |
| B15BA | XM Tuner Malfunction | When either condition below is met: Internal IC malfunction Tuner malfunction | Radio receiver assembly |
The radio receiver assembly and remote operation board are connected by the AVC-LAN communication line.
This DTC is stored when an AVC-LAN communication error occurs between the radio receiver assembly and remote operation board.
| DTC No. | Detection Item | DTC Detection Condition | Trouble Area |
|---|---|---|---|
| B1563 | Haptic Device Disconnected | A device that is listed in the AVC-LAN network connected device record of the master unit is missing | Remote operation board power source circuit AVC-LAN circuit between remote operation board and radio receiver assembly Remote operation board Radio receiver assembly Harness or connector |
HINT
The radio receiver assembly is the master unit.
Scheme 64
The radio receiver assembly and multi-display assembly are connected via video signal (digital) lines.
This DTC is stored when a video signal (digital) line is disconnected.
| DTC No. | Detection Item | DTC Detection Condition | Trouble Area |
|---|---|---|---|
| B1575 | GVIF Disconnected (from EMV/MM Integrated Device to Multi Display) | Video signal (digital) is lost | Harness and connector Radio receiver assembly Multi-display assembly |
Scheme 65
The radio receiver assembly and map light assembly (telephone microphone assembly) are connected to each other using the microphone connection detection signal lines.
This DTC is stored when a microphone connection detection signal line is disconnected.
| DTC No. | Detection Item | DTC Detection Condition | Trouble Area |
|---|---|---|---|
| B1579 | Voice Recognition Microphone Disconnected | Microphone signal is lost | Map light assembly Telephone microphone assembly DCM (telematics transceiver)*1 Radio receiver assembly Harness or connector |
*1: w/ Manual (SOS) Switch
Scheme 66
This DTC is stored when a malfunction occurs in a connected device.
| DTC No. | Detection Item | DTC Detection Condition | Trouble Area |
|---|---|---|---|
| B1585 | USB Device Malfunction | When one of the conditions below is met: A non mass-storage class or incompatible protocol USB device is connected USB device with an incompatible file system, corrupted or incompatible File Allocation Table (FAT) is connected "iPod" malfunction "iPod" with unsupported firmware is connected Unsupported "iPod" model is connected | USB device or "iPod" Radio receiver assembly |
This DTC is stored when a video or audio signal is interrupted due to battery voltage input to the radio receiver assembly dropping temporarily.
| DTC No. | Detection Item | DTC Detection Condition | Trouble Area |
|---|---|---|---|
| B158F | AV Signal Stoppage (Low Battery Voltage) | A video or audio signal is interrupted when the battery voltage drops | Radio receiver assembly |
Scheme 67
This DTC is stored when a malfunction occurs in the stereo component amplifier assembly.
| DTC No. | Detection Item | DTC Detection Condition | Trouble Area |
|---|---|---|---|
| B15A3 | Stereo Component Amplifier Malfunction | When one of the conditions below is met: Internal power supply malfunction DSP error EEPROM error | Stereo component amplifier assembly |
These DTCs are stored when a malfunction occurs in the multi-display assembly.
| DTC No. | Detection Item | DTC Detection Condition | Trouble Area |
|---|---|---|---|
| B15A6 | Display Malfunction | When one of the conditions below is met: RAM error Drawing controller malfunction Internal hard drive malfunction | Multi-display assembly |
| B15B0 | Display Screen Malfunction | Picture circuit (TFT unit) malfunction | Multi-display assembly |
This DTC is stored when a malfunction occurs in the remote operation board.
| DTC No. | Detection Item | DTC Detection Condition | Trouble Area |
|---|---|---|---|
| B15AF | Haptic Device Malfunction | Internal hardware malfunction | Remote operation board |
This DTC is stored when a malfunction occurs in the speakers.
| DTC No. | Detection Item | DTC Detection Condition | Trouble Area |
|---|---|---|---|
| B15C3 | Speaker Output Short | A short is detected in the speaker output circuit | Harness or connector Speaker Stereo component amplifier assembly DCM (telematics transceiver)*1 |
*1: w/ Manual (SOS) Switch
Scheme 68
Scheme 69
The radio receiver assembly and stereo component amplifier assembly are connected by the AVC-LAN communication line.
This DTC is stored when an AVC-LAN communication error occurs between the radio receiver assembly and stereo component amplifier assembly.
| DTC No. | Detection Item | DTC Detection Condition | Trouble Area |
|---|---|---|---|
| B15D3 | Stereo Component Amplifier Disconnected | When either condition below is met: The stereo component amplifier assembly is/was not connected while the engine switch is/was on (IG) or on (ACC) Communication between the master unit and the stereo component amplifier assembly is not possible when the engine is started | Stereo component amplifier assembly power source circuit AVC-LAN circuit between radio receiver assembly and stereo component amplifier assembly Stereo component amplifier assembly Radio receiver assembly Harness or connector |
HINT
The radio receiver assembly is the master unit.
Scheme 70
The multi-display assembly and radio receiver assembly are connected by the AVC-LAN communication line.
This DTC is stored when an AVC-LAN communication error occurs between the multi-display assembly and radio receiver assembly.
| DTC No. | Detection Item | DTC Detection Condition | Trouble Area |
|---|---|---|---|
| B15D6 | Display Disconnected | A device that is listed in the AVC-LAN connected device record of the master unit is missing | Multi-display assembly power source circuit AVC-LAN circuit between radio receiver assembly and multi-display assembly Multi-display assembly Radio receiver assembly Harness or connector |
HINT
The radio receiver assembly is the master unit.
Scheme 71
This DTC is stored when items controlled by the air conditioning amplifier assembly cannot be customized via the audio and visual system vehicle customization screen.
HINT
The air conditioning amplifier assembly controls the air conditioning system related items that are customizable via the multi-display assembly screen.
| DTC No. | Detection Item | DTC Detection Condition | Trouble Area |
|---|---|---|---|
| B15F5 | Air Conditioner ECU Vehicle Information Reading/Writing Processor Malfunction | Air conditioning amplifier assembly vehicle setting processing error | CAN communication system Air conditioning system Air conditioning amplifier assembly Radio receiver assembly |
This DTC is stored when items controlled by the main body ECU (multiplex network body ECU) cannot be customized via the audio and visual system vehicle customization screen.
HINT
The main body ECU (multiplex network body ECU) controls the items for the following systems that are customizable via the multi-display assembly screen
- Power door lock control system
- Wireless door lock control system
- Lighting system (for Interior)
- Lighting system (for Exterior)
| DTC No. | Detection Item | DTC Detection Condition | Trouble Area |
|---|---|---|---|
| B15F6 | Main Body ECU Vehicle Information Reading/Writing Process Malfunction | Main body ECU (multiplex network body ECU) vehicle setting processing error | CAN communication system Power door lock control system Wireless door lock control system Lighting system (for Interior) Lighting system (for Exterior) Main body ECU (multiplex network body ECU) Radio receiver assembly |
This DTC is stored when items controlled by the certification ECU (smart key ECU assembly) cannot be customized via the audio and visual system vehicle customization screen.
HINT
The certification ECU (smart key ECU assembly) controls the smart access system with push-button start (for Entry Function) related items that are customizable via the multi-display assembly screen.
| DTC No. | Detection Item | DTC Detection Condition | Trouble Area |
|---|---|---|---|
| B15F7 | Certification ECU Vehicle Information Reading/Writing Process Malfunction | Certification ECU (smart key ECU assembly) vehicle setting processing error | CAN communication system Smart access system with push-button start (for Entry Function) Certification ECU (smart key ECU assembly) Radio receiver assembly |
This DTC is stored when items controlled by the main body ECU (multiplex network body ECU) cannot be customized via the audio and visual system vehicle customization screen.
HINT
The main body ECU (multiplex network body ECU) controls the front power seat control system (w/ Memory) related items that are customizable via the multi-display assembly screen.
| DTC No. | Detection Item | DTC Detection Condition | Trouble Area |
|---|---|---|---|
| B15F8 | D-Seat ECU Vehicle Information Reading/Writing Process Malfunction | Main body ECU (multiplex network body ECU) vehicle setting processing error | CAN communication system Front power seat control system (w/ Memory) Main body ECU (multiplex network body ECU) Radio receiver assembly |
These DTCs are stored when a malfunction occurs in the roof antenna assembly which is connected to the radio receiver assembly.
| DTC No. | Detection Item | DTC Detection Condition | Trouble Area |
|---|---|---|---|
| B15FE | XM Tuner Antenna Disconnected | The roof antenna assembly is not connected | Antenna cord sub-assembly No. 2 antenna cord sub-assembly No. 5 antenna cord sub-assembly Roof antenna assembly Radio receiver assembly |
| B15FF | XM Tuner Antenna Short | A short occurs in the roof antenna assembly | Antenna cord sub-assembly No. 2 antenna cord sub-assembly No. 5 antenna cord sub-assembly Roof antenna assembly Radio receiver assembly |
These DTCs are stored when a malfunction occurs in the CAN communication circuit.
| DTC No. | Detection Item | DTC Detection Condition | Trouble Area |
|---|---|---|---|
| U0073 | Sending Malfunction (Navigation to APGS) | CAN bus connection error | CAN communication system |
| U0100 | Engine ECU Communication | CAN reception error | CAN communication system |
| U0129 | VSC(ECB)ECU Communication | CAN reception error | CAN communication system |
| U0140 | Lost Communication with Body Control Module | CAN reception error | CAN communication system |
| U0155 | Meter ECU Communication | CAN reception error | CAN communication system |
| U0164 | Air Conditioner ECU Communication | CAN reception error | CAN communication system |
| U1110 | Clearance Sonar ECU Communication | CAN reception error | CAN communication system |
When the audio and visual system is activated with the light control switch in the tail or head position, before AVC-LAN communication is established, the multi-display assembly dims the display according to the illumination signal received via a direct line.
After AVC-LAN communication is established, the multi-display assembly dims the display according to a dimmer signal sent via a direct line.
The radio receiver assembly switches between the daytime screen and night screen on the multi-display assembly according to the illumination signal input.
Scheme 72
When a USB device or "iPod" is connected to the USB jack of the No. 1 stereo jack adapter assembly, it must have playable files. The device must also communicate with and be recognized by the radio receiver assembly. This diagnosis procedure is for when a device is not recognized, or files from the device cannot be played normally.
Scheme 73
Power is supplied to the No. 1 stereo jack adapter assembly illumination from the radio receiver assembly.
Scheme 74
Power is supplied to the remote operation board illumination when the light control switch is in the tail or head position.
HINT
Only the "AUDIO", "MENU" and return switches on the remote operation board illuminate.
Scheme 75
Vehicle speed signals are received from the combination meter assembly and used to cancel "Bluetooth" function operation.
The radio receiver assembly recognizes that the vehicle is being driven and makes it impossible to connect or register a "Bluetooth" device while driving.
HINT
- A voltage of 12 V or 5 V is output from each ECU and then input to the combination meter assembly. The signal is changed to a pulse signal at the transistor in the combination meter assembly. Each ECU controls its respective system based on this pulse signal.
- If a short occurs in any of the ECUs or in the wire harness connected to an ECU, all systems in the following diagram will not operate normally.
Scheme 76
This circuit sends an operation signal from the steering pad switch assembly to the radio receiver assembly.
If there is an open in the circuit, the audio and visual system cannot be operated using the steering pad switch assembly.
If there is a short in the circuit, the same condition as when a switch is continuously depressed occurs.
Therefore, the radio receiver assembly cannot be operated using the steering pad switch assembly, also the radio receiver assembly itself will not function.
Scheme 77
Power is supplied to the radio receiver assembly and steering pad switch assembly illumination when the light control switch is in the tail or head position.
Scheme 78
This circuit is from the parking brake switch assembly to the radio receiver assembly.
Scheme 79
If there is a short in a speaker circuit, the stereo component amplifier assembly detects it and stops output to the speakers.
Thus sound cannot be heard from the speakers even if there is no malfunction in the stereo component amplifier assembly, DCM (telematics transceiver)*1 or speakers.
*1: w/ Manual (SOS) Switch
The radio receiver assembly sends a sound signal to the stereo component amplifier assembly via this circuit.
The sound signal that has been sent is amplified by the stereo component amplifier assembly, and then is sent to the speakers.
If there is an open or short in the circuit, sound cannot be heard from the speakers even if there is no malfunction in the stereo component amplifier assembly, DCM (telematics transceiver)*1 or speakers.
*1: w/ Manual (SOS) Switch
Scheme 80
The No. 1 stereo jack adapter assembly sends the sound signal from an external device to the radio receiver assembly via this circuit.
The sound signal that has been sent is amplified by the stereo component amplifier assembly and then is sent to the speakers.
If there is an open or short in the circuit, sound cannot be heard from the speakers even if there is no malfunction in the stereo component amplifier assembly, radio receiver assembly, DCM (telematics transceiver)*1 or speakers.
*1: w/ Manual (SOS) Switch
Scheme 81
The No. 1 stereo jack adapter assembly sends the sound data signal or image data signal from a USB device to the radio receiver assembly via this circuit.
Scheme 82
This circuit sends a signal to the stereo component amplifier assembly to mute noise. Due to this, the noise produced by changing the sound source ceases.
If there is an open in the circuit, noise can be heard from the speakers when changing the sound source.
If there is a short in the circuit, even though the stereo component amplifier assembly is functioning normally, no sound or only an extremely faint sound can be heard.
Scheme 83
The DCM (telematics transceiver) sends a mute signal to the stereo component amplifier assembly.
The stereo component amplifier assembly controls the volume according to the mute signal from the DCM (telematics transceiver).
Scheme 84
Each unit of the audio and visual system connected to the AVC-LAN (communication bus) transfers switch signals through the AVC-LAN.
If a short to +B or short to ground occurs in the AVC-LAN, the audio and visual system will not function normally because communication is not possible.
Scheme 85
The stereo component amplifier assembly receives a vehicle speed signal from the combination meter assembly to control the ASL function.
HINT
- A voltage of 12 V or 5 V is output from each ECU and then input to the combination meter assembly. The signal is changed to a pulse signal at the transistor in the combination meter assembly. Each ECU controls its respective systems based on this pulse signal.
- If a short occurs in any of the ECUs or in the wire harness connected to an ECU, all systems in the diagram below will not operate normally.
Scheme 86
- INSPECT COMBINATION METER ASSEMBLY (OUTPUT WAVEFORM) Check the output waveform. *a Component with harness connected (Combination Meter Assembly) - - Remove the combination meter assembly with the connector(s) still connected. Connect an oscilloscope to terminal K3-19 (+S) and body ground. Turn the engine switch on (IG). Turn a wheel slowly. Check the signal waveform according to the condition(s) in the table below. Item Condition Measurement terminal K3-19 (+S) - Body ground Tool setting 5 V/DIV., 20 ms./DIV. Vehicle condition Wheel being rotated OK The waveform is similar to that shown in the illustration. HINT: When the system is functioning normally, one wheel revolution generates 4 pulses. As the vehicle speed increases, the width indicated by (A) in the illustration narrows. Result Proceed to OK NG Result: 2 NG GO TO METER / GAUGE SYSTEM. Refer to «Speed Signal Circuit [04/2013 - ]»(ref-665736-S15231487792014102400000) Result: 1 OK See step 2
- INSPECT STEREO COMPONENT AMPLIFIER ASSEMBLY (INPUT WAVEFORM) Check the input waveform. *a Component with harness connected (Stereo Component Amplifier Assembly) - - Remove the stereo component amplifier assembly with the connector(s) still connected. Connect an oscilloscope to terminal P24-11 (SPD) and body ground. Turn the engine switch on (IG). Turn a wheel slowly. Check the signal waveform according to the condition(s) in the table below. Item Condition Measurement terminal P24-11 (SPD) - Body ground Tool setting 5 V/DIV., 20 ms./DIV. Vehicle condition Wheel being rotated OK The waveform is similar to that shown in the illustration. HINT: When the system is functioning normally, one wheel revolution generates 4 pulses. As the vehicle speed increases, the width indicated by (A) in the illustration narrows. Result Proceed to OK NG Result: 1 OK PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE. Refer to «PROBLEM SYMPTOMS TABLE [04/2013 - ]»(ref-665837-S26378820682014102400000) Result: 2 NG REPAIR OR REPLACE HARNESS OR CONNECTOR (STEREO COMPONENT AMPLIFIER ASSEMBLY - COMBINATION METER ASSEMBLY)
This circuit is used when the voice switch of the steering pad switch assembly is pushed.
Using this circuit, the radio receiver assembly sends signals to the stereo component amplifier assembly.
Scheme 87
- The radio receiver assembly and map light assembly (telephone microphone assembly) are connected to each other using the microphone connection detection signal lines.
- w/o Manual (SOS) Switch: Using this circuit, the radio receiver assembly sends power to the map light assembly (telephone microphone assembly), and the map light assembly (telephone microphone assembly) sends microphone signals to the radio receiver assembly.
- w/ Manual (SOS) Switch: Using this circuit, the DCM (telematics transceiver) sends power to the map light assembly (telephone microphone assembly), and the map light assembly (telephone microphone assembly) sends microphone signals to the radio receiver assembly via the DCM (telematics transceiver).
Scheme 88
The main body ECU (multiplex network body ECU) sends an auto dimmer signal to the radio receiver assembly via this circuit.
When the radio receiver assembly receives an auto dimmer signal from the main body ECU (multiplex network body ECU), the radio receiver assembly causes the instrument panel illumination to be dimmed.
Scheme 89
The radio receiver assembly sends a visual mute signal to the multi-display assembly. As a result, a black screen is displayed when the screen changes so that noise and distorted images are not displayed.
When an open exists in the circuit, noise and distorted images will be displayed instead of a black screen.
When a short exists in the circuit, even though the multi-display assembly is operating normally, noise and distorted images will be displayed (black screen will not be displayed) during screen changes or the black screen will always be displayed.
Scheme 90
The No. 1 stereo jack adapter assembly sends the display signal from an external device to the radio receiver assembly via this circuit.
Scheme 91
This is the power source circuit to operate the radio receiver assembly.
Scheme 92
See also:
• REMOVAL [04/2013 - ]