Audio System & Visual System: Overview Toyota Sienna II рестайлинг

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1. DISC PLAYER OUTLINE A CD player uses a laser pickup to read digital signals recorded on CDs. By converting the digital signals to analog, music and other content can be played. CAUTION: Do not look directly at the laser pickup because the CD player uses an invisible laser beam. Be sure to operate the player only as instructed. NOTE: Do not disassemble any part of the CD player. Do not apply oil to the CD player. Do not insert anything but a CD into the CD player. Usable discs The CD player can only play audio CDs, CD-Rs (CD-Recordable), and CD-RWs (CD-ReWritable) that have any of the following marks: Precautions for use of discs NOTE: Copy-protected CDs cannot be played. CD-Rs and CD-RWs may not be played depending on the recording conditions or characteristics of the discs, or due to damage, dirt, or deterioration caused by leaving the discs in the cabin for a long time. Unfinalized CD-Rs and CD-RWs cannot be played. Keep the discs away from dirt. Be careful not to damage the discs or leave your fingerprints on them. Hold discs by the outer edge and center hole with the label side up. Leaving the disc exposed halfway out of the slot for a long time after pressing the disc eject button may cause deformation of the disc, making the disc unusable. If discs have adhesive tape, stickers, CDR labels, or any traces of such labels attached, the discs may not be ejected or player malfunctions may result. Keep the discs away from direct sunlight. (Exposure to direct sunlight may cause deformation of the disc, making the disc unusable.) Do not use odd-shaped CDs because these may cause player malfunctions. Do not use discs whose recording portion is transparent or translucent because they may not be inserted, ejected, or played normally. HINT: When it is cold or it is raining, if the windows mist up, mist and also dew may form in the player. In such a case, the CD may skip or the CD may stop in the middle of play. Ventilate or dehumidify the cabin for a while before using the player. The CD may skip if the player experiences strong vibrations when the vehicle is driven on rough road or similar uneven surface(s). Cleaning NOTE: Do not use a lens cleaner because it may cause a malfunction in the pickup portion of the player. If dirt is on the disc surface, wipe it clean with a soft dry cloth such as an eyeglass cleaner for plastic lenses from the inside to the outside in a radial direction. NOTE: Pressing on the disc by hand or rubbing the disc with a hard cloth may scratch the disc surface. Use of solvent such as a record spray, antistatic agent, alcohol, benzine, and thinner, or a chemical cloth may cause damage to the disc, making the disc unusable.
2. MP3/WMA OUTLINE Playable MP3 file standards PLAYABLE MP3 FILE REFERENCE Compatible standard MP3 (MPEG1 LAYER3, MPEG2 LSF LAYER 3) Compatible sampling frequency MPEG1 LAYER3: 32, 44.1, 48 (kHz) MPEG2 LSF LAYER3: 36, 22.05, 24 (kHz) Compatible bit rate MPEG1 LAYER3: 64, 80, 96, 112, 128, 160, 192, 224, 256, 320 (kbps) MPEG2 LSF LAYER3: 64, 80, 96, 112, 128, 144, 160 (kbps) Compatible with VBR Compatible channel mode Stereo, joint stereo, dual channel, monaural Playable WMA file standards PLAYABLE WMA FILE REFERENCE Compatible standard WMA Ver. 7, 8, and 9 Compatible sampling frequency 32, 44.1, 48 (kHz) Compatible bit rate Ver. 7, 8: CBR48, 64, 80, 96, 128, 160, 192 (kbps) Ver. 9: CBR48, 64, 80, 96, 128, 160, 192, 256, 320 (kbps) Compatible with playback of channel 2 only ID3 tag and WMA tag Additional textual information called ID3 tag can be input to MP3 files. Information such as song titles and artist names can be stored. HINT: This player is compatible with the ID3 tags of ID3 Ver. 1.0 and 1.1, and ID3 Ver. 2.2 and 2.3. (Number of characters complies with ID3 Ver. 1.0 and 1.1.) Additional textual information called WMA tag can be input to WMA files. Information such as song titles and artist names can be stored. Usable media Only CD-ROMs, CD-Rs (CD-Recordable), and CD-RWs (CD-ReWritable) only can be used to play MP3/WMA files. NOTE: CD-Rs and CD-RWs are more easily affected by a hot and humid environment than discs used for normal audio CDs. For this reason, some CD-Rs and CD-RWs may not be played. If there are fingerprints or scratches on the disc, the disc may not be played or the CD may skip. Some CD-Rs and CD-RWs deteriorate if they are left in the cabin for a long time. Keep CD-Rs and CD-RWs in a storage case that is impenetrable to light. Usable media format Usable media format USABLE MEDIA FORMAT CHART Disc format CD-ROM Mode 1, CD-ROM XA Mode 2 Form 1 File format ISO9660 Level 1 and Level 2 (jollet) HINT: As for MP3/WMA files written in any format other than those above, the contents of the files may not be played normally or the file names or folder names may not be displayed correctly. This player is compatible with multi-session discs and can play CD-Rs and CD-RWs on which MP3/WMA files are added. However, only the first session can be played. Discs whose first session includes both music data and MP3 or WMA format data cannot be played. Standard and restrictions STANDARD AND RESTRICTIONS CHART Maximum directory levels 8 levels Maximum number of characters for a folder name/file name 32 characters Maximum number of folders 192 (Including empty folders, route folders, and folders that do not contain MP3/WMA files) Maximum number of files in a disc 255 (Including non-MP3/WMA files) File names Only files with an extension of ".mp3" or ".wma" can be recognized and played as MP3 or WMA files. Save MP3 or WMA files with an extension of ".mp3" or ".wma". NOTE: If saving non-MP3 or non-WMA files with an extension of ".mp3" or ".wma", those files are wrongly recognized as MP3 or WMA files and played. A loud noise may occur and damage to the speaker may result.
3. AVC-LAN DESCRIPTION What is AVC-LAN? AVC-LAN, an abbreviation for "Audio Visual Communication Local Area Network", is a united standard developed by the manufacturers in affiliation with Toyota Motor Corporation. This standard pertains to audio and visual signals as well as switch and communication signals. Purpose: Recently, car audio systems have rapidly developed and the functions have vastly changed. The conventional car audio system is being integrated with multi-media interfaces similar to those in navigation systems. At the same time, customers are demanding higher quality from their audio systems. This is merely an overview of the standardization background. The specific purposes are as follows: To solve sound problems, etc. caused by using components of different manufacturers through signal standardization. To allow each manufacturer to concentrate on developing products they do best. From this, reasonably priced products can be produced. HINT: If a short to +B or short to ground is detected in the AVC-LAN circuit, communication is interrupted and the audio system will stop functioning. If an audio system is equipped with a navigation system, the multi-display unit acts as the master unit. If the navigation system is not equipped, the audio head unit acts as the master unit instead. If the radio and navigation assembly is equipped, it is the master unit. The radio receiver contains a resistor that is necessary to enable communication on the different AVC-LAN circuits. The car audio system with an AVC-LAN circuit has a diagnostic function. Each component has a specified number (3-digit) called a physical address. Each function has a number (2-digit) called a logical address.
4. COMMUNICATION SYSTEM OUTLINE Components of the audio system communicate with each other via the AVC-LAN. The master component of the AVC-LAN is a radio receiver with a 60 to 80 ohms resistor. This is essential for communication. If a short circuit or open circuit occurs in the AVC-LAN circuit, communication is interrupted and the audio system will stop functioning.
5. DIAGNOSTIC FUNCTION OUTLINE The audio system has a diagnostic function (the result is indicated on the master unit). A 3-digit hexadecimal component code (physical address) is allocated to each component on the AVC-LAN. Using this code, the component in the diagnostic function can be displayed.

DESCRIPTION

DIAGNOSTIC TROUBLE CODE CHART

DIAGNOSTIC TROUBLE CODE CHART

Note. Before starting troubleshooting, be sure to clear DTCs to erase codes stored due to the reasons described in the HINT above. Then, check for DTCs and troubleshoot according to the output DTCs. The radio receiver is the master unit. Be sure to clear and recheck DTCs after the inspection is completed to confirm that no DTCs are output.

DIAGNOSTIC TROUBLE CODE CHART

Note. Before starting troubleshooting, be sure to clear DTCs to erase codes stored due to the reasons described in the HINT above. Then, check for DTCs and troubleshoot according to the output DTCs. The radio receiver is the master unit. Be sure to clear and recheck DTCs after the inspection is completed to confirm that no DTCs are output.

DIAGNOSTIC TROUBLE CODE CHART

Note. Before starting troubleshooting, be sure to clear DTCs to erase codes stored due to the reasons described in the HINT above. Then, check for DTCs and troubleshoot according to the output DTCs. The radio receiver is the master unit. Be sure to clear and recheck DTCs after the inspection is completed to confirm that no DTCs are output.

DIAGNOSTIC TROUBLE CODE CHART

Note. Before starting troubleshooting, be sure to clear DTCs to erase codes stored due to the reasons described in the HINT above. Then, check for DTCs and troubleshoot according to the output DTCs. The radio receiver is the master unit. Be sure to clear and recheck DTCs after the inspection is completed to confirm that no DTCs are output.

DIAGNOSTIC TROUBLE CODE CHART

Note. Before starting troubleshooting, be sure to clear DTCs to erase codes stored due to the reasons described in the HINT above. Then, check for DTCs and troubleshoot according to the output DTCs. The radio receiver is the master unit. Be sure to clear and recheck DTCs after the inspection is completed to confirm that no DTCs are output.

DIAGNOSTIC TROUBLE CODE CHART

HINT

Even if no fault is present, this a trouble code may be stored depending on the battery condition or engine start voltage.

DIAGNOSTIC TROUBLE CODE CHART

DIAGNOSTIC TROUBLE CODE CHART

DIAGNOSTIC TROUBLE CODE CHART

DIAGNOSTIC TROUBLE CODE CHART

DIAGNOSTIC TROUBLE CODE CHART

DIAGNOSTIC TROUBLE CODE CHART

DIAGNOSTIC TROUBLE CODE CHART

DIAGNOSTIC TROUBLE CODE CHART

DIAGNOSTIC TROUBLE CODE CHART

DIAGNOSTIC TROUBLE CODE CHART

DIAGNOSTIC TROUBLE CODE CHART

DIAGNOSTIC TROUBLE CODE CHART

DIAGNOSTIC TROUBLE CODE CHART

DIAGNOSTIC TROUBLE CODE CHART

DIAGNOSTIC TROUBLE CODE CHART

DIAGNOSTIC TROUBLE CODE CHART

DIAGNOSTIC TROUBLE CODE CHART

DIAGNOSTIC TROUBLE CODE CHART

DIAGNOSTIC TROUBLE CODE CHART

This circuit is necessary for the ASL (Auto Sound Leveliser) built into the radio receiver.

Speed signals are received from the combination meter and used for the ASL.

The ASL function automatically adjusts the sound data in order to enable hearing the clear audio sound even when vehicle noise increases (as vehicle noise increases, the volume is turned up etc.).

HINT

1. A voltage of 12 V or 5 V is output from each ECU and then input to the combination meter. The signal is changed to a pulse signal at the transistor in the combination meter. Each ECU controls the respective system based on the pulse signal.
2. If a short occurs in an ECU, all systems in the diagram below will not operate normally.

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1. CHECK OPERATION OF SPEEDOMETER Drive the vehicle and check if the function of the speedometer on the combination meter is normal. OK: Actual vehicle speed and the speed indicated on the speedometer are the same. HINT: the vehicle speed sensor is functioning normally when the indication on the speedometer is normal. NG: CHECK COMBINATION METER OK: Go to next step
2. INSPECT RADIO RECEIVER Disconnect the radio receiver connector. Measure the voltage. Jack up either one of the drive wheels. Move the shift lever to the neutral position. Turn the ignition switch to the ON position. *1: 6 Speaker without Rear Seat Entertainment System. *2: 6 Speaker with Rear Seat Entertainment System. Measure the voltage between terminal SPD of the radio receiver and body ground when the drive wheels are turned slowly. OK: Voltage pulses as shown in the illustration. NG: REPLACE RADIO RECEIVER OK: Go to next step
3. CHECK HARNESS AND CONNECTOR (COMBINATION METER - RADIO RECEIVER) Disconnect the radio receiver connector and combination meter connector. Measure the resistance according to the value(s) in the table below. Standard resistance TESTER CONNECTION SPECIFIED CONDITION CHART Tester Connection Condition Specified Condition SPD-C10-36 Ignition switch OFF Below 1 ohms *1: 6 Speaker without Rear Seat Entertainment System. *2: 6 Speaker with Rear Seat Entertainment System. NG: REPAIR OR REPLACE HARNESS AND CONNECTOR OK: Go to next step
4. CHECK HARNESS AND CONNECTOR Disconnect the radio receiver connector and combination meter connector. Measure the resistance according to the value(s) in the table below. Standard resistance TESTER CONNECTION SPECIFIED CONDITION CHART Tester Connection Condition Specified Condition SPD - Body ground Ignition switch OFF 10 kohms or higher HINT: If the resistance between terminal SPD and body ground is less than 10 kohms, there may be a short in a wire harness, connector, or an ECU that is connected to the SPD signal wire. *1: 6 Speaker without Rear Seat Entertainment System. *2: 6 Speaker with Rear Seat Entertainment System. NG: REPAIR OR REPLACE HARNESS OR CONNECTOR OR EACH ECU OK: REPLACE COMBINATION METER

This circuit sends an operation signal from the steering pad switch to the radio receiver.

If there is an open in the circuit, the audio system cannot be operated using the steering pad switch. If there is a short in the circuit, the same condition as that when the switch is continuously depressed occurs.

Therefore, the radio receiver cannot be operated using the steering pad switch, and also the radio receiver itself cannot function.

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Power is supplied to the radio receiver and steering pad switch illumination when the light control switch is in the TAIL or HEAD position.

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1. When the vehicle has a built-in type amplifier, a sound signal is sent from the radio receiver to the speakers via the "6 Speaker System" circuit.
2. When the vehicle has a separate type amplifier, a sound signal from the radio receiver is amplified by the stereo component amplifier and then transmitted to the speaker via the "10 Speaker System" circuit.

If there is a short in this circuit, the stereo component amplifier 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 or speakers.

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1. CHECK HARNESS AND CONNECTOR Disconnect the connectors shown in the illustration from the stereo component amplifier or radio receiver and speakers. 10 Speaker System: Measure the resistance between each of the front No. 2 speakers and the stereo component amplifier to check for an open circuit in the wire harness. Standard resistance: Below 1 ohms 6 speaker System: Measure the resistance between each of the front No. 2 speakers and the radio receiver to check for an open circuit in the wire harness. Standard resistance: Below 1 ohms Measure the resistance between each of the front No. 2 speakers and each of the front No. 1 speakers to check for an open circuit in the wire harness. Standard resistance: Below 1 ohms 10 Speaker System: Measure the resistance between each of the rear speakers and the stereo component amplifier to check for an open circuit in the wire harness. Standard resistance: Below 1 ohms 6 Speaker System: Measure the resistance between each of the rear speakers and the radio receiver to check for an open circuit in the wire harness. Standard resistance: Below 1 ohms 10 Speaker System: Measure the resistance between each of the rear stereo component speakers and the stereo component amplifier to check for an open circuit in the wire harness. Standard resistance: Below 1 ohms 10 Speaker System: Measure the resistance between the front stereo component speaker and the stereo component amplifier to check for an open circuit in the wire harness. Standard resistance: Below 1 ohms 10 Speaker System: Measure the resistance between the woofer box speaker and the stereo component amplifier to check for an open circuit in the wire harness. Standard resistance: Below 1 ohms Measure the resistance between the each speaker and body ground to check for a short circuit in the wire harness. Standard resistance: 10 kohms or higher NG: REPAIR OR REPLACE HARNESS OR CONNECTOR OK: Go to Next Step
2. INSPECT FRONT NO. 1 SPEAKER Resistance check. Measure the resistance between the terminals of the speaker. Standard resistance: 10 Speaker System: 4 to 6 ohms 6 Speaker System: Approximately 4 ohms NG: REPLACE FRONT NO. 1 SPEAKER OK: Go to Next Step
3. INSPECT REAR SPEAKER Resistance check. Measure the resistance between the terminals of the speaker. 10 Speaker System: Approximately 2.4 ohms 6 Speaker System: Approximately 4 ohms NG: REPLACE REAR SPEAKER OK: Go to Next Step
4. INSPECT FRONT NO. 2 SPEAKER Check that the malfunction disappears when another speaker in good condition is installed. Standard: Malfunction disappears. HINT: Connect all the connectors to the front No. 2 speaker. When there is a possibility that either the right or left front speaker is detective, inspect by interchanging the right one with the left one. Perform the above inspection on both LH and RH sides. OK: REPLACE FRONT NO. 2 SPEAKER NG: Go to Next Step
5. CONFIRM MODEL Result RESULT CHART Result Proceed to 10 Speaker System A 6 Speaker System B B: PROCEED TO NEXT CIRCUIT INSPECTION SHOWN IN PROBLEM SYMPTOMS TABLE A: Go to Next Step
6. INSPECT WOOFER BOX SPEAKER Resistance check. Measure the resistance according to the value(s) in the table below. NOTE: The speaker should not be removed for checking. Standard resistance TESTER CONNECTION SPECIFIED CONDITION CHART Tester connection Condition Specified condition 1-3 Always Approximately 1.2 ohms 2-4 Always Approximately 1.2 ohms NG: REPLACE WOOFER BOX SPEAKER OK: Go to Next Step
7. INSPECT REAR STEREO COMPONENT SPEAKER Check that the malfunction disappears when another speaker in good condition is installed. OK: Malfunction disappears. HINT: Connect all the connectors to the rear stereo component speaker. When there is a possibility that either the right or left rear speaker is detective, inspect by interchanging the right one with the left one. OK: REPLACE REAR STEREO COMPONENT SPEAKER NG: Go to Next Step
8. INSPECT FRONT STEREO COMPONENT SPEAKER Resistance check. Measure the resistance between the terminals of the speaker. Standard resistance: 1.2 to 2.2 ohms NG: REPLACE FRONT STEREO COMPONENT SPEAKER OK: PROCEED TO NEXT CIRCUIT INSPECTION SHOWN IN PROBLEM SYMPTOMS TABLE

The radio receiver sends a sound signal to the stereo component amplifier through this circuit.

The sound signal that has been sent is amplified by the stereo component amplifier, 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 or speakers.

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1. CHECK HARNESS AND CONNECTOR (RADIO RECEIVER - STEREO COMPONENT AMPLIFIER) Disconnect the connectors from the radio receiver and stereo component amplifier. Measure the resistance according to the value(s) in the table below. Standard resistance TESTER CONNECTION SPECIFIED CONDITION CHART Tester connection Condition Specified condition L+-L+ Always Below 1 ohms L-L- Always Below 1 ohms R+-R+ Always Below 1 ohms R-R- Always Below 1 ohms SLD - SLD Always Below 1 ohms L+ - Body ground Always 10 kohms or higher L- - Body ground Always 10 kohms or higher R+ - Body ground Always 10 kohms or higher R- - Body ground Always 10 kohms or higher SLD - Body ground Always 10 kohms or higher NG: REPAIR OR REPLACE HARNESS OR CONNECTOR OK: PROCEED TO NEXT CIRCUIT INSPECTION SHOWN IN PROBLEM SYMPTOMS TABLE

The television display assembly sends a sound signal to the radio receiver through this circuit.

The sound signal that has been sent is amplified by the stereo component amplifier or radio receiver (built-in amplifier), 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, radio receiver, or speakers.

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1. CHECK HARNESS AND CONNECTOR (RADIO RECEIVER - TELEVISION DISPLAY ASSEMBLY) Disconnect the connectors from the television display assembly and radio receiver. Measure the resistance according to the value(s) in the table below. Standard resistance TESTER CONNECTION SPECIFIED CONDITION CHART Tester Connection Condition Specified Condition CDR+-R+ Always Below 1 ohms CDR- - R- Always Below 1 ohms CDL+ - L+ Always Below 1 ohms CDL- - L- Always Below 1 ohms CSLD - SG1 Always Below 1 ohms R- - Body ground Always 10 kohms or higher L+ - Body ground Always 10 kohms or higher L- - Body ground Always 10 kohms or higher R+ - Body ground Always 10 kohms or higher SG1 - Body ground Always 10 kohms or higher NG: REPAIR OR REPLACE HARNESS OR CONNECTOR OK: Go to Next Step
2. INSPECT TELEVISION DISPLAY ASSEMBLY Reconnect the television display assembly connector. Check the waveform according to the conditions shown in the table below. Standard TESTER CONNECTION SPECIFIED CONDITION CHART Tester connection Condition Specified condition R+ - Body ground Voice sound is being produced A waveform synchronized with sound is output R- - Body ground Voice sound is being produced A waveform synchronized with sound is output L+ - Body ground Voice sound is being produced A waveform synchronized with sound is output L- - Body ground Voice sound is being produced A waveform synchronized with sound is output NG: REPLACE TELEVISION DISPLAY ASSEMBLY OK: PROCEED TO NEXT CIRCUIT INSPECTION SHOWN IN PROBLEM SYMPTOMS TABLE

The stereo jack adapter sends an external device sound signal to the radio receiver through this circuit. The sound signal that has been sent is amplified by the stereo component amplifier or radio receiver, 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, radio receiver, or speakers.

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1. CHECK HARNESS AND CONNECTOR (RADIO RECEIVER - STEREO JACK ADAPTER) Disconnect the connectors from the stereo jack adapter and radio receiver. Measure the resistance according to the value(s) in the table below. Standard resistance TESTER CONNECTION SPECIFIED CONDITION CHART Tester connection Condition Specified condition AUXO - AUXI Always Below 1 ohms ASGN - ASGN Always Below 1 ohms ARO - ARI Always Below 1 ohms ALO - ALI Always Below 1 ohms AUXO - Body ground Always 10 kohms or higher ASGN - Body ground Always 10 kohms or higher ARO - Body ground Always 10 kohms or higher ALO - Body ground Always 10 kohms or higher *1: 10 Speaker System *2: 6 Speaker with Rear Entertainment System *3: 6 Speaker without Rear Entertainment System NG: REPAIR OR REPLACE HARNESS OR CONNECTOR OK: PROCEED TO NEXT CIRCUIT INSPECTION SHOWN IN PROBLEM SYMPTOMS TABLE

This circuit sends a signal to the stereo component amplifier to mute noise. Because of that, 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 is normal, no sound, or only an extremely small sound, can be produced.

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1. INSPECT STEREO COMPONENT AMPLIFIER Measure the voltage according to the value(s) in the table below. Standard voltage TESTER CONNECTION SPECIFIED CONDITION CHART Tester connection Condition Specified condition MUTE - Body ground Turn ignition switch to ACC, Audio system is playing --> Changing Above 3.5 V --> Below 1 V OK: PROCEED TO NEXT CIRCUIT INSPECTION SHOWN IN PROBLEM SYMPTOMS TABLE NG: Go to Next Step
2. CHECK HARNESS AND CONNECTOR (RADIO RECEIVER - STEREO COMPONENT AMPLIFIER) Disconnect the radio receiver connector R7 and stereo component amplifier connector S11. Measure the resistance according to the value(s) in the table below. Standard resistance TESTER CONNECTION SPECIFIED CONDITION CHART Tester connection Condition Specified condition MUTE - MUTE Always Below 1 ohms MUTE - Body ground Always 10 kohms or higher NG: REPAIR OR REPLACE HARNESS OR CONNECTOR OK: Go to Next Step
3. REPLACE STEREO COMPONENT AMPLIFIER Replace the stereo component amplifier and check if the audio system operates normally. OK: The audio system operates normally. OK: NORMAL OPERATION NG: REPLACE RADIO RECEIVER

The radio receiver controls the volume according to the MUTE signal from the television display assembly.

The MUTE signal is sent to reduce noise and a popping sound generated when switching the mode, etc.

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 radio receiver is normal, no sound or, only an extremely small sound, can be produced.

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1. INSPECT TELEVISION DISPLAY ASSEMBLY Measure the voltage according to the value(s) in the table below. Standard voltage TESTER CONNECTION SPECIFIED CONDITION CHART Tester Connection Condition Specified Condition MUTE - Body ground Turn ignition switch to ACC, RSE system is playing --> Changing mode Above 3.5 V --> Below 1 V OK: PROCEED TO NEXT CIRCUIT INSPECTION SHOWN IN PROBLEM SYMPTOMS TABLE NG: Go to Next Step
2. CHECK HARNESS AND CONNECTOR (RADIO RECEIVER - TELEVISION DISPLAY) Disconnect the radio receiver connector R8 and television display assembly connector T14. Measure the resistance according to the value(s) in the table below. Standard resistance TESTER CONNECTION SPECIFIED CONDITION CHART Tester Connection Condition Specified Condition MUTE - MUTE Always Below 1 ohms MUTE - Body ground Always 10 kohms or higher NG: REPAIR OR REPLACE HARNESS OR CONNECTOR OK: Go to Next Step
3. REPLACE TELEVISION DISPLAY ASSEMBLY Replace the television display assembly and check if the audio system operates normally. OK: The audio system operates normally. OK: END NG: REPLACE RADIO RECEIVER

Each unit of the audio system connected to the AVC-LAN (communication bus) transfers the signal of each switch by communication.

When a short to +B or short to ground occurs in this AVC-LAN, the audio system will not function normally as the communication is discontinued.

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1. INSPECT RADIO RECEIVER Disconnect the radio receiver connectors. Measure the resistance according to the value(s) in the table below. Standard resistance TESTER CONNECTION SPECIFIED CONDITION CHART Tester Connection Condition Specified Condition ATX+ (R7-5) - ATX- (R7-15) ( (1) ) Always 60 to 80 ohms TXM+ (R8-9) - TXM- (R8-10) Always 60 to 80 ohms (1) 10 Speaker System NG: REPLACE RADIO RECEIVER OK: Go to Next Step
2. CHECK HARNESS AND CONNECTOR HINT: For details of the connectors, refer to the " «TERMINALS OF ECU»(ref-282152-S21112125482008032900000) ". Referring to the AVC-LAN wiring diagram below, check all AVC-LAN circuits. Disconnect all connectors in all AVC-LAN circuits. Check for an open or short in all AVC-LAN circuits. OK: There is no open or short circuit. NG: REPAIR OR REPLACE HARNESS OR CONNECTOR OK: PROCEED TO NEXT CIRCUIT INSPECTION SHOWN IN PROBLEM SYMPTOMS TABLE

This circuit is necessary for the ASL (Auto Sound Leveliser) built into the radio receiver.

Speed signals are received from the combination meter and used for the ASL.

The ASL function automatically adjusts the sound data in order to enable hearing the clear audio sound even when vehicle noise increases (as vehicle noise increases, the volume is turned up etc.).

HINT

1. A voltage of 12 V or 5 V is output from each ECU and then input to the combination meter. The signal is changed to a pulse signal at the transistor in the combination meter. Each ECU controls the respective system based on the pulse signal.
2. If a short occurs in an ECU, all systems in the diagram below will not operate normally.

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1. CHECK OPERATION OF SPEEDOMETER Drive the vehicle and check if the function of the speedometer on the combination meter is normal. OK: Actual vehicle speed and the speed indicated on the speedometer are the same. HINT: The vehicle speed sensor is functioning normally when the indication on the speedometer is normal. NG: CHECK COMBINATION METER ASSEMBLY OK: Go to Next Step
2. INSPECT RADIO RECEIVER Disconnect the radio receiver connector. Measure the voltage. Jack up either one of the drive wheels. Move the shift lever to the neutral position. Turn the ignition switch to the ON position. *1: 6 Speaker without Rear Seat Entertainment System. *2: 6 Speaker with Rear Seat Entertainment System. Measure the voltage between terminal SPD of the radio receiver and body ground when the drive wheels are turned slowly. OK: Voltage pulses as shown in the illustration. NG: Go to step 3 OK: REPLACE RADIO RECEIVER
3. CHECK HARNESS AND CONNECTOR (COMBINATION METER - RADIO RECEIVER) Disconnect the radio receiver connector and combination meter connector. Measure the resistance according to the value(s) in the table below. Standard resistance TESTER CONNECTION SPECIFIED CONDITION CHART Tester Connection Condition Specified Condition SPD-C10-36 Ignition switch OFF Below 1 ohms *1: 6 Speaker without Rear Seat Entertainment System. *2: 6 Speaker with Rear Seat Entertainment System. NG: REPAIR OR REPLACE HARNESS OR CONNECTOR OK: Go to Next Step
4. CHECK HARNESS AND CONNECTOR (COMBINATION METER - RADIO RECEIVER) Disconnect the radio receiver connector and combination meter connector. Measure the resistance according to the value(s) in the table below. Standard resistance TESTER CONNECTION SPECIFIED CONDITION CHART Tester Connection Condition Specified Condition SPD - Body ground Ignition switch OFF 10 kohms or higher HINT: If the resistance between terminal SPD and body ground is less than 10 kohms, there may be a short in a wire harness, connector, or an ECU that is connected to the SPD signal wire. *1: 6 Speaker without Rear Seat Entertainment System. *2: 6 Speaker with Rear Seat Entertainment System. NG: REPAIR OR REPLACE HARNESS OR CONNECTOR OR CHECK EACH ECU OK: REPLACE COMBINATION METER

This circuit is necessary for the ASL (Auto Sound Leveliser) built into the stereo component amplifier.

Speed signals are received from the combination meter and used for the ASL.

The ASL function automatically adjusts the sound data in order to enable hearing the clear audio sound even when vehicle noise increases (as vehicle noise increases, the volume is turned up etc.).

HINT

1. A voltage of 12 V or 5 V is output from each ECU and then input to the combination meter. The signal is changed to a pulse signal at the transistor in the combination meter. Each ECU controls the respective system based on the pulse signal.
2. If a short occurs in an ECU, all systems in the diagram below will not operate normally.

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1. OPERATION OF SPEEDOMETER Drive the vehicle and check if the function of the speedometer on the combination meter is normal. OK: Actual vehicle speed and the speed indicated on the speedometer are the same. HINT: The vehicle speed sensor is functioning normally when the indication on the speedometer is normal. NG: CHECK COMBINATION METER OK: Go to Next Step
2. INSPECT STEREO COMPONENT AMPLIFIER Disconnect the stereo component amplifier connector S11. Measure the voltage. Jack up either one of the drive wheels. Move the shift lever to the neutral position. Turn the ignition switch to the ON position. Measure the voltage between terminal SPD of the stereo component amplifier and body ground when the drive wheels are turned slowly. OK: Voltage pulses as shown in the illustration. NG: Go to step 3 OK: REPLACE STEREO COMPONENT AMPLIFIER
3. CHECK HARNESS AND CONNECTOR (COMBINATION METER - STEREO COMPONENT AMPLIFIER) Disconnect the stereo component amplifier connector S11 and combination meter connector C10. Measure the resistance according to the value(s) in the table below. Standard resistance TESTER CONNECTION SPECIFIED CONDITION CHART Tester connection Condition Specified condition SPD-C10-36 Ignition switch OFF Below 1 ohms NG: REPAIR OR REPLACE HARNESS OR CONNECTOR OK: Go to Next Step
4. CHECK HARNESS AND CONNECTOR (COMBINATION METER - STEREO COMPONENT AMPLIFIER) Disconnect the stereo component amplifier connector S11 and combination meter connector C10. Measure the resistance according to the value(s) in the table below. Standard resistance TESTER CONNECTION SPECIFIED CONDITION CHART Tester connection Condition Specified condition SPD - Body ground Ignition switch OFF 10 kohms or higher HINT: If the resistance between terminal SPD and body ground is less than 10 kohms, there may be a short in a wire harness, connector, or an ECU that is connected to the SPD signal wire. NG: REPAIR OR REPLACE HARNESS OR CONNECTOR OR CHECK EACH ECU OK: REPLACE COMBINATION METER

Scheme 41

1. IDENTIFY THE COMPONENT SHOWN BY THE SUB-CODE Enter the diagnostic mode. Press the preset switch "3" to change to "Detailed Information Mode". Identify the component shown by the sub-code. HINT: "190 (radio receiver)" is the component shown by the subcode in the example shown in the illustration. For details of the DTC display, refer to " «DTC CHECK / CLEAR»(ref-282152-S38916040322008032900000) ".
2. CHECK POWER SOURCE CIRCUIT OF COMPONENT SHOWN BY SUB-CODE Inspect the power source circuit of the component shown by the sub-code. If the power source circuit is operating normally, proceed to the next step. Component Table: COMPONENT REFERENCE CHART Component Proceed to Stereo component amplifier (440) «STEREO COMPONENT AMPLIFIER POWER SOURCE CIRCUIT»(ref-282152-S03776958802008032900000) Television display assembly (1B0) «TELEVISION DISPLAY ASSEMBLY POWER SOURCE CIRCUIT»(ref-282157-S29531434492008032900000)
3. INSPECT RADIO RECEIVER Disconnect the radio receiver connectors. Measure the resistance according to the value(s) in the table below. Standard resistance TESTER CONNECTION SPECIFIED CONDITION CHART Tester Connection Condition Specified Condition ATX+ (R7-5) - ATX- (R7-15) ( (1) ) Always 60 to 80 ohms TXM+ (R8-9) - TXM- (R8-10) Always 60 to 80 ohms (1) 10 Speaker System NG: REPLACE RADIO RECEIVER OK: Go to Next Step
4. CHECK HARNESS AND CONNECTOR (RADIO RECEIVER - COMPONENT SHOWN BY SUB-CODE) HINT: Start the check from the circuit that is near the component shown by the sub-code first. For details of the connectors, refer to the " «TERMINALS OF ECU»(ref-282152-S21112125482008032900000) ". Referring to the AVC-LAN wiring diagram below, check the AVC-LAN circuit between the radio receiver and the component shown by the sub-code. Disconnect all connectors between the radio receiver and the component shown by sub-code. Check for an open or short in the AVC-LAN circuit between the radio receiver and the component shown by the sub-code. OK: There is no open or short circuit. NG: REPAIR OR REPLACE HARNESS OR CONNECTOR OK: Go to Next Step
5. REPLACE COMPONENT SHOWN BY SUB-CODE Replace the component shown by the sub-code with a normal one and check if the same problem occurs again. OK: Same problem does not occur. NG: REPLACE RADIO RECEIVER OK: END

Scheme 42

1. IDENTIFY THE COMPONENT SHOWN BY THE SUB-CODE Enter the diagnostic mode. Press the preset switch "3" to change to "Detailed Information Mode". Identify the component shown by the sub-code. HINT: "190 (radio receiver)" is the component shown by the subcode in the example shown in the illustration. For details of the DTC display, refer to " «DTC CHECK / CLEAR»(ref-282152-S38916040322008032900000) ".
2. CHECK POWER SOURCE CIRCUIT OF COMPONENT SHOWN BY SUB-CODE Inspect the power source circuit of the component shown by the sub-code. If the power source circuit is operating normally, proceed to the next step. Component Table: COMPONENT REFERENCE CHART Component Proceed to Television display assembly (1 BO) «TELEVISION DISPLAY ASSEMBLY POWER SOURCE CIRCUIT»(ref-282157-S29531434492008032900000) Radio receiver (190) «RADIO RECEIVER POWER SOURCE CIRCUIT»(ref-282152-S05483292782008032900000)
3. INSPECT RADIO RECEIVER Disconnect the radio receiver connectors. Measure the resistance according to the value(s) in the table below. Standard resistance TESTER CONNECTION SPECIFIED CONDITION CHART Tester Connection Condition Specified Condition ATX+(R7-5)-ATX-(R7-15) ( (1) ) Always 60 to 80 ohms TXM+ (R8-9) - TXM- (R8-10) Always 60 to 80 ohms (1) 10 Speaker System NG: REPLACE RADIO RECEIVER OK: Go to Next Step
4. CHECK HARNESS AND CONNECTOR (STEREO COMPONENT AMPLIFIER COMPONENT SHOWN BY SUB-CODE) HINT: Start the check from the circuit that is near the component shown by the sub-code first. For details of the connectors, refer to the " «TERMINALS OF ECU»(ref-282152-S21112125482008032900000) ". Referring to the AVC-LAN wiring diagram below, check the AVC-LAN circuit between the stereo component amplifier and the component shown by the sub-code. Disconnect all connectors between the stereo component amplifier and the component shown by sub-code. Check for an open or short in the AVC-LAN circuit between the stereo component amplifier and the component shown by the sub-code. OK: There is no open or short circuit. NG: REPAIR OR REPLACE HARNESS OR CONNECTOR OK: Go to Next Step
5. REPLACE COMPONENT SHOWN BY SUB-CODE Replace the component shown by the sub-code with a normal one and check if the same problem occurs again. OK: Same problem does not occur. NG: REPLACE STEREO COMPONENT AMPLIFIER OK: END

Scheme 43

Scheme 44

1. IDENTIFY THE COMPONENT SHOWN BY THE SUB-CODE Enter the diagnostic mode. Press the preset switch "3" to change to "Detailed Information Mode". Identify the component shown by the sub-code. HINT: "190 (radio receiver)" is the component shown by the sub-code in the example shown in the illustration. For details of the DTC display, refer to " «DTC CHECK / CLEAR»(ref-282152-S38916040322008032900000) ".
2. CHECK POWER SOURCE CIRCUIT OF COMPONENT SHOWN BY SUB-CODE Inspect the power source circuit of the component shown by the sub-code. If the power source circuit is operating normally, proceed to the next step. Component Table: COMPONENT REFERENCE CHART Component Proceed to Radio receiver (190) «RADIO RECEIVER POWER SOURCE CIRCUIT»(ref-282152-S05483292782008032900000) Stereo component amplifier (440) «STEREO COMPONENT AMPLIFIER POWER SOURCE CIRCUIT»(ref-282152-S03776958802008032900000)
3. INSPECT RADIO RECEIVER Disconnect the radio receiver connectors. Measure the resistance according to the value(s) in the table below. Standard resistance TESTER CONNECTION SPECIFIED CONDITION CHART Tester Connection Condition Specified Condition ATX+ (R7-5) - ATX- (R7-15) ( (1) ) Always 60 to 80 ohms TXM+ (R8-9)-TXM-(R8-10) Always 60 to 80 ohms (1) 10 Speaker System NG: REPLACE RADIO RECEIVER OK: Go to Next Step
4. CHECK HARNESS AND CONNECTOR (TELEVISION DISPLAY ASSEMBLY - COMPONENT SHOWN BY SUB-CODE) HINT: Start the check from the circuit that is near the component shown by the sub-code first. For details of the connectors, refer to " «TERMINALS OF ECU»(ref-282152-S21112125482008032900000) ". Referring to the AVC-LAN wiring diagram below, check the AVC-LAN circuit between the television display assembly and the component shown by the sub-code. Disconnect all connectors between the television display assembly and the component shown by sub-code. Check for an open or short in the AVC-LAN circuit between the television display assembly and the component shown by the sub-code. OK: There is no open or short circuit. NG: REPAIR OR REPLACE HARNESS OR CONNECTOR OK: Go to Next Step
5. REPLACE COMPONENT SHOWN BY SUB-CODE Replace the component shown by the sub-code with a normal one and check if the same problem occurs again. OK: Same problem does not occur. NG: REPLACE TELEVISION DISPLAY ASSEMBLY OK: END

This circuit provides power to the radio receiver.

Scheme 45

Scheme 46

1. INSPECT RADIO RECEIVER ASSEMBLY Disconnect the radio receiver connector. Measure the resistance according to the value in the table below. Standard resistance TESTER CONNECTION SPECIFIED CONDITION CHART Tester connection Condition Specified condition GND - Body ground Always Below 1 ohms Measure the voltage according to the values in the table below. Standard voltage TESTER CONNECTION SPECIFIED CONDITION CHART Tester connection Condition Specified condition +B - GND ( (2) ) ( (3) ) Always 10 to 14 V B - GND ( (1) ) Always 10 to 14 V ACC - GND Ignition SW ACC 10 to 14 V (1) 10 Speaker without Navigation System (2) 6 Speaker with Rear Seat Entertainment System (3) 6 Speaker without Rear Seat Entertainment System NG: REPAIR OR REPLACE HARNESS OR CONNECTOR OK: PROCEED TO NEXT CIRCUIT INSPECTION SHOWN IN PROBLEM SYMPTOMS TABLE

This circuit provides power to the stereo component amplifier.

Scheme 47

Scheme 48

1. INSPECT STEREO COMPONENT AMPLIFIER Disconnect the stereo component amplifier connectors. Measure the resistance according to the values in the table below. Standard resistance TESTER CONNECTION SPECIFIED CONDITION CHART Tester connection Condition Specified condition GND - Body ground Always Below 1 ohms GND2 - Body ground Always Below 1 ohms Measure the voltage according to the values in the table below. Standard voltage TESTER CONNECTION SPECIFIED CONDITION CHART Tester connection Condition Specified condition B+ - GND Always 10 to 14 V B2+ - GND Always 10 to 14 V ACC - GND Ignition SW ACC 10 to 14 V NG: REPAIR OR REPLACE HARNESS OR CONNECTOR OK: PROCEED TO NEXT CIRCUIT INSPECTION SHOWN IN PROBLEM SYMPTOMS TABLE

Scheme 49

Scheme 50

SYSTEM DESCRIPTION

1. OUTLINE As a unique feature of Rear Seat Entertainment (RSE) system, the front and rear seat occupants can enjoy different audio-visual modes at the same time. Thus, this system offers enhanced entertainment to the rear seat occupants. The rear seat occupants can control the audio-visual modes with the remote controller (switch assembly), and listen to the audio using wireless headphones. The RSE system is controlled by the television display assembly, and the communication between the audio head unit and the television display assembly is established via an AVC-LAN (Audio Visual Communication-Local Area Network). The RSE system can play discs recorded entirely in the MP3 format, as well as music discs containing a mixture of CD data (CD-DA files) and MP3 data. HINT: MP3 is short for MPEG1 (Moving Picture Expert Group Phase 1) & 2 Audio Layer 3. It is an audio compression standard set by a working group (MPEG) of the ISO (International Standards Organization). MP3 is able to compress audio data to about 1/10 the level of a conventional disc.
2. FUNCTION OF MAIN COMPONENTS FUNCTION OF MAIN COMPONENTS Television display assembly Control Panel DVD Player Headphone Terminal Displays DVD and Video images. Receives signals from the remote controller. Outputs audio signals to the wireless headphones in the form of infrared signals. Outputs audio signals to the wired headphones that are connected. Adjusts the volume of the wired headphones in accordance with volume control. Radio and navigation assembly ( (1) ) Radio receiver ( (2) ) Receives audio signals from the television display assembly and outputs them to the stereo component amplifier. Enables or disables the function of the remote controller for the television display assembly. Remote Controller (Switch assembly) Outputs various control signals of the RSE system to the television display assembly in the form of infrared signals. Wireless headphones Receives the audio signals from the television display assembly in the form of infrared signals. Volume adjustment of the wireless headphones can be done by using the volume control on the wireless headphones. VTR terminal This terminal is for connecting a video player's video and audio output terminals. (1) with Navigation System (2) without Navigation System

This is the sound signal circuit from the video (video adapter) terminal to the television display assembly.

Scheme 51

Scheme 52

Scheme 53

1. CHECK HARNESS AND CONNECTOR (TELEVISION DISPLAY ASSEMBLY - VIDEO TERMINAL) Disconnect the connectors from the video (video adapter) terminal and television display assembly. Measure the resistance according to the value(s) in the table below. Standard resistance TESTER CONNECTION SPECIFIED CONDITION CHART Tester connection Condition Specified condition SGND - SGND Always Below 1 ohms AUXR - R1+ Always Below 1 ohms AUXL - LU- Always Below 1 ohms CE - ADPG Always Below 1 ohms AUXR - Body ground Always 10 kohms or higher AUXL - Body ground Always 10 kohms or higher NG: REPAIR OR REPLACE HARNESS OR CONNECTOR OK: Go to Next Step
2. INSPECT VIDEO TERMINAL Reconnect the video (video adapter) terminal connector. Using an oscilloscope, check the signal waveform between each terminal and body ground according to the conditions, as shown in the chart. HINT: An external device system is playing (When the video (video adapter) terminal is used). Signal waveform TESTER CONNECTION SPECIFIED CONDITION CHART Tester connection Condition Specified condition AUXL - Body ground Sound is being produced A waveform synchronized with sound is output AUXR - Body ground Sound is being produced A waveform synchronized with sound is output NG: REPLACE VIDEO TERMINAL OK: PROCEED TO NEXT CIRCUIT INSPECTION SHOWN IN PROBLEM SYMPTOMS TABLE

This is the display signal circuit from the video terminal to the television display assembly.

Scheme 54

Scheme 55

Scheme 56

Scheme 57

1. CHECK HARNESS AND CONNECTOR (TELEVISION DISPLAY ASSEMBLY - VIDEO TERMINAL) Disconnect the connectors from the video terminal and television display assembly. Measure the resistance according to the value(s) in the table below. Standard resistance TESTER CONNECTION SPECIFIED CONDITION CHART Tester connection Condition Specified condition CE-ADPG Always Below 1 ohms NTSC - W+ Always Below 1 ohms SGND- W- Always Below 1 ohms NTSC - Body ground Always 10 kohms or higher SGND - Body ground Always 10 kohms or higher NG: REPAIR OR REPLACE HARNESS OR CONNECTOR OK: Go to Next Step
2. INSPECT VIDEO TERMINAL Reconnect the video (video adapter) terminal connector. Measure the waveform according to the table below. OK TESTER CONNECTION SPECIFIED CONDITION CHART Tester connection Condition Specified condition NTSC-SGND External device is playing A waveform synchronized with display signals is output HINT: The waveform pattern may differ from that shown in the illustration below due to differences in oscilloscope setting. A normal video terminal operating condition can be determined if any waveform is output. Oscilloscope waveform Terminal: NTSC - Body ground Setting: 200mV/DIV, 10 μs/DIV Condition: DVD display is ON. NG: REPLACE VIDEO TERMINAL OK: PROCEED TO NEXT CIRCUIT INSPECTION SHOWN IN PROBLEM SYMPTOMS TABLE

This is the power source circuit to operate the television display assembly.

Scheme 58

Scheme 59

1. INSPECT TELEVISION DISPLAY ASSEMBLY Disconnect the connector from the television display assembly. Measure the resistance according to the value(s) in the table below. Standard resistance TESTER CONNECTION SPECIFIED CONDITION CHART Tester connection Condition Specified condition GND - Body ground Always Below 1 ohms Measure the voltage according to the value(s) in the table below. Standard voltage TESTER CONNECTION SPECIFIED CONDITION CHART Tester connection Condition Specified condition +B-GND Always 10 to 14 V ACC - GND Ignition SW ACC 10 to 14 V NG: REPAIR OR REPLACE HARNESS OR CONNECTOR OK: PROCEED TO NEXT CIRCUIT INSPECTION SHOWN IN PROBLEM SYMPTOMS TABLE

Scheme 60

Scheme 61

Scheme 62

Scheme 63

1. REMOVE INSTRUMENT CLUSTER CENTER NO. 1 FINISH PANEL (See «REMOVAL»(ref-282145-S40783459792008032900000) )
2. REMOVE INSTRUMENT CLUSTER CENTER NO. 2 FINISH PANEL (See «REMOVAL»(ref-282145-S40783459792008032900000) )
3. REMOVE INSTRUMENT CLUSTER FINISH PANEL GARNISH (See «REMOVAL»(ref-282145-S40783459792008032900000) )
4. REMOVE RADIO RECEIVER Remove the 4 screws. Disconnect the connectors and remove the radio receiver with bracket.
5. REMOVE RADIO NO. 1 BRACKET Remove the 4 screws and radio No. 1 bracket.
6. REMOVE RADIO NO. 2 BRACKET Remove the 4 screws and radio No. 2 bracket.

Scheme 64

1. INSTALL RADIO NO. 2 BRACKET Install radio No. 2 bracket with the 4 screws.
2. INSTALL RADIO NO. 1 BRACKET Install radio No. 1 bracket with the 4 screws.
3. INSTALL RADIO RECEIVER Connect the connector. Install the radio receiver with the 4 screws.
4. INSTALL INSTRUMENT CLUSTER FINISH PANEL GARNISH
5. INSTALL INSTRUMENT CLUSTER CENTER NO. 2 FINISH PANEL
6. INSTALL INSTRUMENT CLUSTER CENTER NO. 1 FINISH PANEL

Scheme 65

Scheme 66

Scheme 67

1. REMOVE GLOVE COMPARTMENT DOOR ASSEMBLY (See «REMOVAL»(ref-282145-S40783459792008032900000) )
2. REMOVE STEREO COMPONENT AMPLIFIER ASSEMBLY Disconnect the connectors. Remove the 2 nuts and the stereo component amplifier assembly.

See also:
• INSPECTION