Identifying Audio And Visual System Components (1 Of 2). Scheme 1
Identifying Audio And Visual System Components (2 Of 2). Scheme 2
Audio And Visual System Diagram. Scheme 3
SYSTEM DESCRIPTION
| CAUTION | The CD player uses an invisible laser beam which could cause hazardous radiation exposure. Be sure to operate the player as instructed. |
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Scheme 8
- COMPACT DISC PLAYER The Compact Disc (CD) player uses a laser beam pickup to read the digital signals recorded on CDs and reproduce analog signals of music, etc. The CD player can play 12 cm (4.7 in.) discs. NOTE: Never disassemble or apply oil to any part of the player unit. Only insert discs into the CD player. USABLE DISC This player is compatible only with music CDs, CD-Rs (CD-Recordable) and CD-RWs (CD-ReWritable) with the marks shown in the illustration below. (Scheme 4): Identifying Disc Marks PRECAUTIONS FOR HANDLING DISC NOTE: Copy-controlled CDs cannot be used. Some CD-Rs and CD-RWs are not playable as a result of: 1) the type of recording method used, 2) the type of disc, 3) scratches, 4) contamination, or 5) the disc being in the vehicle for an extended amount of time, leading to deterioration. CD-Rs and CD-RWs that have not been finalized cannot be played. When handling a disc, be careful not to put fingerprints, stains or scratches on the disc. When holding a disc, pinch the center hole and edge of the disc with your fingers. Face the printed side upward. If a disc is ejected by pressing the eject button and left partially ejected for an extended period of time, the disc may become deformed and unusable. A disc may not be able to be ejected or the player may become damaged if: 1) cellophane tape, stickers, CD-R labels or rental CD labels are attached; or 2) residue from removed tape, stickers or labels remain. Avoid direct sunlight when storing discs as they may become deformed and unusable. Do not use uniquely-shaped discs as they may damage the player. Do not use discs where part of the recording surface is transparent or translucent. If used, the disc may become unable to be inserted, ejected and played normally. HINT: Just as condensation fogs the vehicle's windows during wet or cold weather, condensation may also form inside the player. If condensation forms, CD skipping or playback stoppage may occur. Ventilate or dehumidify the vehicle for a while before using the player. If the player vibrates severely due to driving on a rough road, the CD may skip.
- MP3/WMA OUTLINE COMPATIBLE MP3 FILE FORMAT MP3/WMA OUTLINE Compatible format MP3 (MPEG1 LAYER3, MPEG2 LSF LAYER3) Compatible sampling frequency MPEG1 LAYER3: 32, 44.1, 48 (kHz) MPEG2 LSF LAYER3: 16, 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 and monaural COMPATIBLE WMA FILE FORMAT MP3/WMA OUTLINE Compatible format WMA Ver. 7, 8, 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 only with 2 ch playback ID3 TAG / WMA TAG INFORMATION MP3 files have ID3 tags, in which supplemental text information can be input. Song titles and artist names can be saved. HINT: This player is compatible with ver. 1.0 (1.1), and ver. 2.2 (2.3) ID3 tags. The text limit complies with ver. 1.0 (1.1). WMA files have WMA tags, in which supplemental text information can be input. Song titles and artist names can be saved. COMPATIBLE MEDIA INFORMATION Only media such as CD-ROMs, CD-Rs (CD-Recordable) and CD-RWs (CD-ReWritable) are usable for MP3 / WMA playback. NOTE: CD-Rs and CD-RWs are more vulnerable to high temperature and humidity than normal audio CDs. As a result, some CD-Rs and CD-RWs may not be playable. If a disc has fingerprints or becomes scratched, the disc may not be playable or the CD may skip. Some CD-Rs and CD-RWs may deteriorate if left in the vehicle for a long time. Store CD-Rs and CD-RWs in a non-transparent case, as the discs are vulnerable to ultraviolet rays. COMPATIBLE MEDIA FORMAT INFORMATION (1) COMPATIBLE MEDIA FORMAT COMPATIBLE MEDIA FORMAT INFORMATION AND COMPATIBLE MEDIA FORMAT Disc format CD-ROM Model, CD-ROM XA Mode2 Form 1 File format ISO9660 level1, level2
- 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. (Scheme 5): AVC-LAN Communication Diagram Purpose: Recently, car audio systems have rapidly developed and the functions vastly changed. The conventional car audio system is being integrated with multimedia 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 +B or GND short 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 assembly provides resistance to make communication possible. 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.
- COMMUNICATION SYSTEM OUTLINE Components of the audio and visual system communicate with each other via the AVC-LAN. Radio receiver assembly has enough resistance (60 to 80 ohms) necessary for transmitting the communication. This is essential for communication. If a short circuit or open circuit occurs in the AVC-LAN circuit, communication is interrupted and the navigation system will stop functioning.
- DIAGNOSTIC FUNCTION OUTLINE The navigation 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.
- "BLUETOOTH" OUTLINE "Bluetooth" is a trademark owned by Bluetooth SIG. Inc. (Scheme 6): Identifying Bluetooth Outline "Bluetooth" is a new wireless connection technology that uses the 2.4 GHz frequency band. This makes it possible to connect a cellular phone ("Bluetooth" compatible phone (*1)) to the radio receiver (the "Bluetooth" system is built in), and use the handsfree function of the cellular phone, even if it is in a pocket or bag. As a result, it is not necessary to use a connector attached directly to the cellular phone. *1: Some versions of "Bluetooth" compatible cellular phones may not function. (Scheme 7): Identifying Bluetooth Receiver Antenna HINT: The communication performance of "Bluetooth" may vary depending on obstructions or radio wave conditions between communication devices, electromagnetic radiation, communication device sensitivity, or antenna capacity.
- MAINTENANCE CD cleaning: If a disc is dirty, clean the disc by wiping the CD's underside radially with a soft cloth. NOTE: Do not use lens cleaner when cleaning the player, as it may damage the player's pickup part. Do not use a conventional record cleaner or anti-static preservative. (Scheme 8): Cleaning CD
DESCRIPTION
| DTC No. | DTC Detection Condition | Trouble Area |
|---|---|---|
| 01-D5 (*1, *4) | When either condition below is met: Device that sub-code shows is (was) disconnected from system when turning ignition switch ON or ACC Communication condition with device that code shows cannot be obtained when engine starts | Power source circuit of component shown by subcode AVC-LAN circuit between radio receiver and component shown by sub-code Component shown by sub-code |
| 01-DB (*2, *4) | Device indicated by sub-code is (was) disconnected from system after engine starts | |
| 01-D9 (*1, *4) | Device that had functioned before engine stopped is (was) disconnected from system when ignition switch is (was) in ON or ACC | |
| 01-DA (*4) | When either condition below is met: No response is identified when changing mode Detected when sound and image do not change by switch operation | |
| 01-DB (*1, *4) | Dual alarm is detected | |
| 01-DE (*3, *4) | Code is stored when slave device has been disconnected after engine starts | |
| HINT: *1: Even if no failure is detected, a trouble code may be recorded depending on the battery condition or engine start voltage. *2: If the power connector is disconnected after the engine starts, this code is recorded after 180 seconds. *3: This code may be stored if the engine is started and the ignition switch is turned to the START position again. *4: If the device is reported as not existing during verification, check the power source circuit and AVC-LAN circuit for the device. | ||
DTC DETECTION CONDITION AND TROUBLE AREA REFERENCE
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.
| DTC No. | DTC Detection Condition | Trouble Area |
|---|---|---|
| 01-D6 (*1) | When either condition below is met: The device that stores (stored) the code has (had) been disconnected when the ignition switch is in the ACC or ON position The master device has (had) been disconnected when this code is stored | Radio receiver power source circuit Power source circuit of the component which has stored this code AVC-LAN circuit between the radio receiver and the component which has stored this code Component which has stored this code Radio receiver |
| 01-D7 (*2) | When either condition below is met: The device that stored the code has (had) been disconnected after the engine starts (started) The master device has (had) been disconnected when this code is (was) stored | |
| HINT: *1: Even if no failure is detected, a trouble code may be recorded depending on the battery condition or engine start voltage. *2: When 210 seconds have elapsed after disconnecting the power supply connector of the master component with the ignition switch in the ACC or ON position, this code is stored. | ||
DTC DETECTION CONDITION AND TROUBLE AREA REFERENCE
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.
| DTC No. | DTC Detection Condition | Trouble Area |
|---|---|---|
| 01-DC * | Transmission to component shown by sub-code failed (Detecting this DTC does not always mean actual failure) | If same sub-code is recorded in other components, check harness for power supply and communication system of all components shown by code |
| HINT: *: This code may be stored if the engine is started, idled for 60 seconds and then started again. | ||
DTC DETECTION CONDITION AND TROUBLE AREA REFERENCE
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.
| DTC No. | DTC Detection Condition | Trouble Area |
|---|---|---|
| 01-DD (*1) | Device that should be master has been disconnected after engine start | Radio receiver power source circuit AVC-LAN circuit between radio receiver and component which has stored this code Radio receiver Component which has stored this code |
| 01-E1 (*2) | AMP device records that AMP output does not function even while the source device operates | |
| HINT: *1: This code may be stored if the engine is started and the ignition switch is turned to the START position again. *2: Even if no failure is detected, a trouble code may be recorded depending on the battery condition or engine start voltage. | ||
DTC DETECTION CONDITION AND TROUBLE AREA REFERENCE
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.
| DTC No. | DTC Detection Condition | Trouble Area |
|---|---|---|
| 01-DF * | When either condition below is met: Device with display fails and master is switched to audio device Also when communication error between sub-master (audio) and master occurs, this code is stored | Radio receiver power source circuit AVC-LAN circuit between radio receiver and component which has stored this code Radio receiver Component which has stored this code |
| HINT: *: When 210 seconds have elapsed after disconnecting the power supply connector of the master component with the ignition switch in the ACC or ON position, this code is stored. | ||
DTC DETECTION CONDITION AND TROUBLE AREA REFERENCE
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.
| DTC No. | DTC Detection Condition | Trouble Area |
|---|---|---|
| 041-E0 | "Registration complete" signal from master device cannot be received | |
| 01-E3 | Registration demand signal from slave device is output. Or registration demand signal is output by receiving connection confirmation signal from sub-master device. | |
| 01-E4 | Multiple frame transmission is incomplete |
DTC DETECTION CONDITION AND TROUBLE AREA REFERENCE
HINT
Even if no failure is detected, a trouble code may be recorded depending on the battery condition or engine start voltage.
| DTC No. | DTC Detection Condition | Trouble Area |
|---|---|---|
| 01-E2 | Command for ON/OFF control from the master device has a problem | Radio receiver |
DTC DETECTION CONDITION AND TROUBLE AREA REFERENCE
| DTC No. | DTC Detection Condition | Trouble Area |
|---|---|---|
| 44-10 | Mechanical error in the DVD player is detected while the disc is not being inserted or ejected. | Television display |
| 44-11 | Disc insertion or ejection is failed. | |
| 44-12 | Disc read problem occurs. |
DTC DETECTION CONDITION AND TROUBLE AREA REFERENCE
| DTC No. | DTC Detection Condition | Trouble Area |
|---|---|---|
| 44-40 | No disc is inserted. | Television display |
DTC DETECTION CONDITION AND TROUBLE AREA REFERENCE
| DTC No. | DTC Detection Condition | Trouble Area |
|---|---|---|
| 44-41 | Unsuitable disc is inserted. | DVD or CD Television display |
| 44-42 | Disc cannot be read. |
DTC DETECTION CONDITION AND TROUBLE AREA REFERENCE
| DTC No. | DTC Detection Condition | Trouble Area |
|---|---|---|
| 44-43 | DVD-ROM operation is abnormal | DVD or CD Television display |
DTC DETECTION CONDITION AND TROUBLE AREA REFERENCE
| DTC No. | DTC Detection Condition | Trouble Area |
|---|---|---|
| 44-44 | Operation error in DVD mechanism | Television display |
| 44-48 | Excess current is present in DVD player | |
| 44-50 | Malfunction in insertion / ejection system |
DTC DETECTION CONDITION AND TROUBLE AREA REFERENCE
| DTC No. | DTC Detection Condition | Trouble Area |
|---|---|---|
| 44-45 | Disc cannot be ejected. | Television display |
| 44-51 | Mechanical error occurs during elevator operation. | |
| 44-52 | Disc cannot be clamped. |
DTC DETECTION CONDITION AND TROUBLE AREA REFERENCE
| DTC No. | DTC Detection Condition | Trouble Area |
|---|---|---|
| 44-46 | Scratches or dirt is found on disc surface or disc is set upside down. | DVD or CD Television display |
DTC DETECTION CONDITION AND TROUBLE AREA REFERENCE
| DTC No. | DTC Detection Condition | Trouble Area |
|---|---|---|
| 44-47 | Sensor detects that DVD unit temperature is high. | Television display |
DTC DETECTION CONDITION AND TROUBLE AREA REFERENCE
| DTC No. | DTC Detection Condition | Trouble Area |
|---|---|---|
| 44-78 | Error occurs during decode proceeding (MP3/ WMA) | Television display |
DTC DETECTION CONDITION AND TROUBLE AREA REFERENCE
| DTC No. | DTC Detection Condition | Trouble Area |
|---|---|---|
| 44-7D | When either condition below is met: Incompatible MP3/WMA file File extension is MP3/WMA, but header information cannot be read and playback is not possible | DVD or CD Television display |
| 44-7E | When either condition below Is met: No audio data is recorded on disc No playable files (MP3/WMA) | |
| 44-7F | Copyright protection exists and playback is not possible |
DTC DETECTION CONDITION AND TROUBLE AREA REFERENCE
| DTC No. | DTC Detection Condition | Trouble Area |
|---|---|---|
| 57-47 | "Bluetooth" module is not installed. Problem with "Bluetooth" module Problem in communication line to "Bluetooth" module | Radio receiver |
DTC DETECTION CONDITION AND TROUBLE AREA REFERENCE
| DTC No. | DTC Detection Condition | Trouble Area |
|---|---|---|
| 60-10 | AM tuner PLL (phase locked loop) synchronization is impossible. | Radio receiver |
| 60-11 | FM tuner PLL (phase locked loop) synchronization is impossible. |
DTC DETECTION CONDITION AND TROUBLE AREA REFERENCE
| DTC No. | DTC Detection Condition | Trouble Area |
|---|---|---|
| 60-42 | The power source of the tuner is abnormal. | Radio receiver |
| 60-43 | The AM tuner is abnormal. | |
| 60-44 | The FM tuner is abnormal. | |
| 60-50 | A problem occurs in the IC inside the tuner unit and radio reception is not normal. |
DTC DETECTION CONDITION AND TROUBLE AREA REFERENCE
| DTC No. | DTC Detection Condition | Trouble Area |
|---|---|---|
| 62-10 | Mechanical error in CD player is detected while CD is not being inserted or ejected. | Radio receiver |
| 62-11 | CD insertion or ejection failed. | |
| 62-12 | CD read problem occurs. | |
| 63-10 | Mechanical error in CD changer is detected while CD is not being inserted or ejected. | |
| 63-11 | CD insertion or ejection failed. | |
| 63-12 | CD read problem occurs. |
DTC DETECTION CONDITION AND TROUBLE AREA REFERENCE
| DTC No. | DTC Detection Condition | Trouble Area |
|---|---|---|
| 62-40 | No disc is inserted. | Radio receiver |
| 63-40 | No disc is inserted. |
DTC DETECTION CONDITION AND TROUBLE AREA REFERENCE
| DTC No. | DTC Detection Condition | Trouble Area |
|---|---|---|
| 62-41 | Unsuitable disc is inserted. | CD Radio receiver |
| 62-42 | Disc cannot be read. | |
| 63-41 | Unsuitable disc is inserted. | |
| 63-42 | Disc cannot be read. |
DTC DETECTION CONDITION AND TROUBLE AREA REFERENCE
| DTC No. | DTC Detection Condition | Trouble Area |
|---|---|---|
| 62-43 | CD-ROM operation is abnormal | CD Radio receiver |
| 63-43 | CD-ROM operation is abnormal |
DTC DETECTION CONDITION AND TROUBLE AREA REFERENCE
| DTC No. | DTC Detection Condition | Trouble Area |
|---|---|---|
| 62-44 | Operation error in CD mechanism | Radio receiver |
| 62-48 | Excess current is present in CD player | |
| 62-50 | Malfunction in insertion/ejection system | |
| 63-44 | Operation error in CD mechanism | |
| 63-48 | Excess current is present in CD changer | |
| 63-50 | Malfunction in insertion/ejection system |
DTC DETECTION CONDITION AND TROUBLE AREA REFERENCE
| DTC No. | DTC Detection Condition | Trouble Area |
|---|---|---|
| 62-45 | Disc cannot be ejected. | Radio receiver |
| 62-51 | Mechanical error occurs during elevator operation. | |
| 62-52 | Disc cannot be clamped. | |
| 63-45 | Magazine cannot be ejected. | |
| 63-51 | Mechanical error occurs during elevator operation. | |
| 63-52 | Disc cannot be clamped. |
DTC DETECTION CONDITION AND TROUBLE AREA REFERENCE
| DTC No. | DTC Detection Condition | Trouble Area |
|---|---|---|
| 62-46 | Scratches or dirt is found on CD surface or CD is set upside down. | CD Radio receiver |
| 63-46 | Scratches or dirt is found on CD surface or CD is set upside down. |
DTC DETECTION CONDITION AND TROUBLE AREA REFERENCE
| DTC No. | DTC Detection Condition | Trouble Area |
|---|---|---|
| 62-47 | Sensor detects that CD unit temperature is high. | Radio receiver |
| 63-47 | Sensor detects that CD unit temperature is high. |
DTC DETECTION CONDITION AND TROUBLE AREA REFERENCE
| DTC No. | DTC Detection Condition | Trouble Area |
|---|---|---|
| 62-78 | Error occurs during decode processing (MP3/ WMA) | Radio receiver |
| 63-78 | Error occurs during decode processing (MP3/ WMA) |
DTC DETECTION CONDITION AND TROUBLE AREA REFERENCE
| DTC No. | DTC Detection Condition | Trouble Area |
|---|---|---|
| 62-7D | When either condition below is met: Incompatible MP3/WMA file File extension is MP3/WMA, but header information cannot be read and playback is not possible | CD Radio receiver |
| 62-7E | When either condition below Is met: No audio data is recorded on disc No playable files (MP3/WMA) | |
| 62-7F | Copyright protection exists and playback is not possible | |
| 63-7D | When either condition below is met: Incompatible MP3/WMA file File extension is MP3/WMA, but header information cannot be read and playback is not possible | |
| 63-7E | When either condition below is met: No audio data is recorded on disc No playable files (MP3/WMA) | |
| 63-7F | Copyright protection exists and playback is not possible |
DTC DETECTION CONDITION AND TROUBLE AREA REFERENCE
| DTC No. | DTC Detection Condition | Trouble Area |
|---|---|---|
| 74-40 | A short is detected in the speaker output circuit. | Wire harness Speaker Stereo component amplifier |
DTC DETECTION CONDITION AND TROUBLE AREA REFERENCE
This circuit has a fail-safe function.
- When a short in the speaker circuit is detected, all sound outputs are stopped.
Speaker Wiring Diagram. Scheme 9
Scheme 10
Scheme 11
Scheme 12
Scheme 13
Scheme 14
Scheme 15
Scheme 16
- CHECK SPEAKER Check that speaker sounds. Result DTC RESULT DESCRIPTION Result Proceed to Front No. 1 speaker does not operate A Front No. 2 speaker does not operate B Rear No. 1 speaker does not operate C Stereo Component speaker rear does not operate D All speaker do not operate E B: GO to step 4 C: GO to step 6 D: GO to step 8 E: PROCEED TO NEXT CIRCUIT INSPECTION SHOWN IN PROBLEM SYMPTOMS TABLE A: GO to next step
- CHECK WIRE HARNESS (STEREO COMPONENT AMPLIFIER - FRONT NO. 1 SPEAKER) Disconnect the L14 amplifier connector. Disconnect the H1 (*1) or G1 (*2) speaker connector. Measure the resistance of the wire harness side connectors. Standard resistance STANDARD RESISTANCE SPECIFICATIONS Tester Connection Specified Condition L14-1 (FL-) - H1-2 (*1) Below 1 ohms L14-2 (FL+) - H1-1 (*1) Below 1 ohms L14-3 (FR-) - G1-2 (*2) Below 1 ohms L14-9 (FR+) - G1-1 (*2) Below 1 ohms L14-3 (FR-) - Body ground 10 kohms or higher L14-9 (FR+) - Body ground 10 kohms or higher L14-1 (FL-) - Body ground 10 kohms or higher L14-2 (FL+) - Body ground 10 kohms or higher HINT: *1: for LH *2: for RH NG: REPAIR OR REPLACE HARNESS OR CONNECTOR (Scheme 10): Identifying L14 Amplifier Connector And H1 (*1) Or G1 (*2) Speaker Connector OK: GO to next step
- INSPECT FRONT NO. 1 SPEAKER Measure the resistance according to the value(s) in the table below. Standard resistance STANDARD RESISTANCE SPECIFICATIONS Tester Connection Specified Condition 1-2 2.6 ohms NG: REPLACE FRONT NO. 1 SPEAKER ASSEMBLY (Scheme 11): Identifying Front No. 1 Speaker Connector Terminals OK: PROCEED TO NEXT CIRCUIT INSPECTION SHOWN IN PROBLEM SYMPTOMS TABLE
- CHECK WIRE HARNESS (STEREO COMPONENT AMPLIFIER - FRONT NO. 2 SPEAKER) Disconnect the L15 amplifier connector. Disconnect the G7 (*1) or H6 (*2) speaker connector. Measure the resistance of the wire harness side connectors. Standard resistance STANDARD RESISTANCE SPECIFICATIONS Tester Connection Specified Condition L15-6 (FR-) - G7-2 (*1) Below 1 ohms L15-2 (FR+) - G7-1 (*1) Below 1 ohms L15-7 (FL-) - H6-2 (*2) Below 1 ohms L15-8 (FL+) - H6-1 (*2) Below 1 ohms L15-6 (FR-) - Body ground 10 kohms or higher L15-2 (FR+) - Body ground 10 kohms or higher L15-7 (FL-) - Body ground 10 kohms or higher L15-8 (FL+) - Body ground 10 kohms or higher HINT: *1: for RH *2: for LH NG: REPAIR OR REPLACE HARNESS OR CONNECTOR (Scheme 12): Identifying L14 Amplifier Connector And H6 (*2) Or G7 (*1) Speaker Connector OK: GO to next step
- INSPECT FRONT NO. 2 SPEAKER Measure the resistance according to the value(s) in the table below. Standard resistance STANDARD RESISTANCE SPECIFICATIONS Tester Connection Specified Condition 1 - 2 2.5 ohms NG: REPLACE FRONT NO. 2 SPEAKER ASSEMBLY (Scheme 13): Identifying Front No. 2 Speaker Connector Terminals OK: PROCEED TO NEXT CIRCUIT INSPECTION SHOWN IN PROBLEM SYMPTOMS TABLE
- CHECK WIRE HARNESS (STEREO COMPONENT AMPLIFIER - REAR NO. 1 SPEAKER) Disconnect the L15 amplifier connector. Disconnect the J2 (*1) or 12 (*2) speaker connector. Measure the resistance of the wire harness side connectors. Standard resistance STANDARD RESISTANCE SPECIFICATIONS Tester Connection Specified Condition L15-3 (RL+) - J2-1 (*1) Below 1 ohms L15-9 (RL-) - J2-2 (*1) Below 1 ohms L15-10 (RR+) - I2-1 (*2) Below 1 ohms L15-4 (RR-) - I2-2 (*2) Below 1 ohms L15-3 (RL+) - Body ground 10 kohms or higher L15-9 (RL-) - Body ground 10 kohms or higher L15-10 (RR+) - Body ground 10 kohms or higher L15-4 (RR-) - Body ground 10 kohms or higher HINT: *1: for LH *2: for RH NG: REPAIR OR REPLACE HARNESS OR CONNECTOR (Scheme 14): Identifying L15 Amplifier Connector And J2 (*1) Or 12 (*2) Speaker Connector OK: GO to next step
- INSPECT REAR NO. 1 SPEAKER Measure the resistance according to the value(s) in the table below. Standard resistance STANDARD RESISTANCE SPECIFICATIONS Tester Connection Specified Condition 1 - 2 3.1 ohms NG: REPLACE REAR NO. 1 SPEAKER ASSEMBLY see scheme 48: Identifying Front No. 1 Speaker Connector Terminals OK: PROCEED TO NEXT CIRCUIT INSPECTION SHOWN IN PROBLEM SYMPTOMS TABLE
- CHECK WIRE HARNESS (STEREO COMPONENT AMPLIFIER - STEREO COMPONENT SPEAKER REAR) Disconnect the L14 amplifier connector. Disconnect the Q5 speaker connector. Measure the resistance of the wire harness side connectors. Standard resistance STANDARD RESISTANCE SPECIFICATIONS Tester Connection Specified Condition L14-5 (WFL+) - Q5-1 (WF+) Below 1 ohms L14-12 (WFL-) - Q5-2 (WF-) Below 1 ohms L14-10 (WFR-) - Q5-3 (WF-) Below 1 ohms L14-4 (WFR+) - Q5-4 (WF+) Below 1 ohms L14-5 (WFL+) - Body ground 10 kohms or higher L14-12 (WFL-) - Body ground 10 kohms or higher L14-10 (WFR-) - Body ground 10 kohms or higher L14-4 (WFR+) - Body ground 10 kohms or higher NG: REPAIR OR REPLACE HARNESS OR CONNECTOR (Scheme 15): Identifying L14 Amplifier Connector And Q5 Speaker Connector OK: GO to next step
- INSPECT STEREO COMPONENT SPEAKER ASSEMBLY REAR Measure the resistance according to the value(s) in the table below. Standard resistance STANDARD RESISTANCE SPECIFICATIONS Tester Connection Specified Condition 1 - 4 Approx. 2 ohms NG: REPLACE STEREO COMPONENT SPEAKER ASSEMBLY REAR (Scheme 16): Identifying Rear Stereo Component Speaker Connector Terminals OK: PROCEED TO NEXT CIRCUIT INSPECTION SHOWN IN PROBLEM SYMPTOMS TABLE
The circuit is necessary for ASL (Automatic Sound Levelizer). Speed signals are received from the combination meter and used for the ASL.
Vehicle Speed Signal Wiring Diagram. Scheme 17
Scheme 18
- INSPECT COMBINATION METER (SPEEDOMETER) Drive the vehicle and check that 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. NG: GO TO «METER / GAUGE SYSTEM»(ref-265057-S25999973742007092000000) OK: GO to next step
- CHECK HARNESS AND CONNECTOR (COMBINATION METER - RADIO RECEIVER, STEREO COMPONENT AMP.) Disconnect the E19 meter connector. Disconnect the L13 (*1) amplifier or E49 (*2) receiver connector. Measure the resistance of the wire harness side connectors. Standard resistance STANDARD RESISTANCE SPECIFICATIONS Tester Connection Specified Condition E19-39 (+S) - L13-11 (SPD) (*1) Below 1 ohms E19-39 (+S) - E49-3 (SPD) (*2) Below 1 ohms HINT: *1: for Premium sound models *2: for Standard models NG: REPAIR OR REPLACE HARNESS OR CONNECTOR (Scheme 18): Identifying E19 Meter Connector And L13 (*1) Amplifier Or E49 (*2) Receiver Connector OK: PROCEED TO NEXT CIRCUIT INSPECTION SHOWN IN «PROBLEM SYMPTOMS TABLE»(ref-281538-S17652901512008031700000)
This circuit sends a signal from the steering pad switch to the radio receiver.
Steering Pad Switch Wiring Diagram. Scheme 19
The radio receiver panel and steering pad switch illuminate when the light control switch is in the TAIL or HEAD position.
Illumination Wiring Diagram. Scheme 20
The radio receiver sends sound signals to the speakers.
Speaker Wiring Diagram For Standard Models. Scheme 21
Scheme 23
Scheme 24
Scheme 25
Scheme 26
- CONFIRM MODEL Check the audio models. Result DTC RESULT DESCRIPTION Result Proceed to Premium Sound Models A Standard Models B B: GO to step 11 A: GO to next step
- CHECK SPEAKER Check that the speakers sound. Result DTC RESULT DESCRIPTION Result Proceed to Front No. 1 speaker does not operate A Front No. 2 speaker does not operate B Rear No. 1 speaker does not operate C Stereo component speaker rear does not operate D All speakers do not operate E B: GO to step 5 C: GO to step 7 D: GO to step 9 E: PROCEED TO NEXT CIRCUIT INSPECTION SHOWN IN «PROBLEM SYMPTOMS TABLE»(ref-281538-S17652901512008031700000) A: GO to next step
- CHECK HARNESS AND CONNECTOR (STEREO COMPONENT AMPLIFIER - FRONT NO. 1 SPEAKER) Disconnect the L14 amplifier connector. Disconnect the H1 (*1) or G1 (*2) speaker connector. Measure the resistance of the wire harness side connectors. Standard resistance STANDARD RESISTANCE SPECIFICATIONS Tester Connection Specified Condition L14-1 (FL-) - H1-2 (*1) Below 1 ohms L14-2 (FL+) - H1-1 (*1) Below 1 ohms L14-3 (FR-) - G1-2 (*2) Below 1 ohms L14-9 (FR+) - G1-1 (*2) Below 1 ohms L14-3 (FR-) - Body ground 10 kohms or higher L14-9 (FR+) - Body ground 10 kohms or higher L14-1 (FL-) - Body ground 10 kohms or higher L14-2 (FL+) - Body ground 10 kohms or higher HINT: *1: for LH *2: for RH NG: REPAIR OR REPLACE HARNESS OR CONNECTOR see scheme 68: Identifying L14 Amplifier Connector And H1 (*1) Or G1 (*2) Speaker Connector OK: GO to next step
- INSPECT FRONT NO. 1 SPEAKER Measure the resistance according to the value(s) in the table below. Standard resistance STANDARD RESISTANCE SPECIFICATIONS Tester Connection Specified Condition 1 - 2 2.6 ohms NG: REPLACE FRONT NO. 1 SPEAKER ASSEMBLY see scheme 69: Identifying Front No. 1 Speaker Connector Terminals OK: PROCEED TO NEXT CIRCUIT INSPECTION SHOWN IN «PROBLEM SYMPTOMS TABLE»(ref-281538-S17652901512008031700000)
- CHECK HARNESS AND CONNECTOR (STEREO COMPONENT AMPLIFIER - FRONT NO. 2 SPEAKER) Disconnect the L15 amplifier connector. Disconnect the G7 (*1) or H6 (*2) speaker connector. Measure the resistance of the wire harness side connectors. Standard resistance STANDARD RESISTANCE SPECIFICATIONS Tester Connection Specified Condition L15-6 (FR-) - G7-2 (*1) Below 1 ohms L15-2 (FR+) - G7-1 (*1) Below 1 ohms L15-7 (FL-) - H6-2 (*2) Below 1 ohms L15-8 (FL+) - H6-1 (*2) Below 1 ohms L15-6 (FR-) - Body ground 10 kohms or higher L15-2 (FR+) - Body ground 10 kohms or higher L15-7 (FL-) - Body ground 10 kohms or higher L15-8 (FL+) - Body ground 10 kohms or higher HINT: *1: for RH *2: for LH NG: REPAIR OR REPLACE HARNESS OR CONNECTOR see scheme 70: Identifying L14 Amplifier Connector And H6 (*2) Or G7 (*1) Speaker Connector OK: GO to next step
- INSPECT FRONT NO. 2 SPEAKER Measure the resistance according to the value(s) in the table below. Standard resistance STANDARD RESISTANCE SPECIFICATIONS Tester Connection Specified Condition 1 - 2 2.5 ohms NG: REPLACE FRONT NO. 2 SPEAKER ASSEMBLY (Scheme 23): Identifying Front No. 2 Speaker Connector Terminals OK: PROCEED TO NEXT CIRCUIT INSPECTION SHOWN IN «PROBLEM SYMPTOMS TABLE»(ref-281538-S17652901512008031700000)
- CHECK HARNESS AND CONNECTOR (STEREO COMPONENT AMPLIFIER - REAR NO. 1 SPEAKER) Disconnect the L15 amplifier connector. Disconnect the J2 (*1) or 12 (*2) speaker connector. Measure the resistance of the wire harness side connectors. Standard resistance STANDARD RESISTANCE SPECIFICATIONS Tester Connection Specified Condition L15-3 (RL+) - J2-1 (*1) Below 1 ohms L15-9 (RL-) - J2-2 (*1) Below 1 ohms L15-10 (RR+) - I2-1 (*2) Below 1 ohms L15-4 (RR-) - I2-2 (*2) Below 1 ohms L15-3 (RL+) - Body ground 10 kohms or higher L15-9 (RL-) - Body ground 10 kohms or higher L15-10 (RR+) - Body ground 10 kohms or higher L15-4 (RR-) - Body ground 10 kohms or higher HINT: *1: for LH *2: for RH NG: REPAIR OR REPLACE HARNESS OR CONNECTOR see scheme 72: Identifying L15 Amplifier Connector And J2 (*1) Or 12 (*2) Speaker Connector OK: GO to next step
- INSPECT REAR NO. 1 SPEAKER Measure the resistance according to the value(s) in the table below. Standard resistance STANDARD RESISTANCE SPECIFICATIONS Tester Connection Specified Condition 1 - 2 3.1 ohms NG: REPLACE REAR NO. 1 SPEAKER ASSEMBLY see scheme 73: Identifying Front No. 1 Speaker Connector Terminals OK: PROCEED TO NEXT CIRCUIT INSPECTION SHOWN IN «PROBLEM SYMPTOMS TABLE»(ref-281538-S17652901512008031700000)
- CHECK HARNESS AND CONNECTOR (STEREO COMPONENT AMPLIFIER - STEREO COMPONENT SPEAKER REAR) Disconnect the L14 amplifier connector. Disconnect the Q5 speaker connector. Measure the resistance of the wire harness side connectors. Standard resistance STANDARD RESISTANCE SPECIFICATIONS Tester Connection Specified Condition L14-5 (WFL+) - Q5-1 (WF+) Below 1 ohms L14-12 (WFL-) - Q5-2 (WF-) Below 1 ohms L14-10 (WFR-) - Q5-3 (WF-) Below 1 ohms L14-4 (WFR+) - Q5-4 (WF+) Below 1 ohms L14-5 (WFL+) - Body ground 10 kohms or higher L14-12 (WFL-) - Body ground 10 kohms or higher L14-10 (WFR+) - Body ground 10 kohms or higher L14-4 (WFR) - Body ground 10 kohms or higher NG: REPAIR OR REPLACE HARNESS OR CONNECTOR see scheme 74: Identifying L14 Amplifier Connector And Q5 Speaker Connector OK: GO to next step
- INSPECT STEREO COMPONENT SPEAKER ASSEMBLY REAR Measure the resistance according to the value(s) in the table below. Standard resistance STANDARD RESISTANCE SPECIFICATIONS Tester Connection Specified Condition 1 - 4 Approx. 2 ohms NG: REPLACE STEREO COMPONENT SPEAKER ASSEMBLY REAR see scheme 75: Inspecting Rear Stereo Component Speaker OK: PROCEED TO NEXT CIRCUIT INSPECTION SHOWN IN «PROBLEM SYMPTOMS TABLE»(ref-281538-S17652901512008031700000)
- CHECK SPEAKER Check that the speakers sound. Result DTC RESULT DESCRIPTION Result Proceed to Front No. 1 speaker does not operate A Front No. 2 speaker does not operate B Rear No. 1 speaker does not operate C All speakers do not operate D B: GO to step 14 C: GO to step 16 D: PROCEED TO NEXT CIRCUIT INSPECTION SHOWN IN «PROBLEM SYMPTOMS TABLE»(ref-281538-S17652901512008031700000) A: GO to next step
- INSPECT FRONT NO. 2 SPEAKER ASSEMBLY Check that the front No. 2 speaker sounds. OK: Speaker sounds. NG: GO to step 14 OK: GO to next step
- CHECK HARNESS AND CONNECTOR (FRONT NO. 1 SPEAKER - FRONT NO. 2 SPEAKER) Disconnect the H1 (*1) and H7 (*1), or G1 (*2) and G8 (*2) speaker connectors. Measure the resistance of the wire harness side connectors. Standard resistance STANDARD RESISTANCE SPECIFICATIONS Tester Connection Specified Condition H7-3 (+) - H1-1 (*1) Below 1 ohms H7-1 (-) - H1-2 (*1) Below 1 ohms G8-3 (+) - G1-1 (*2) Below 1 ohms G8-1 (-) - G1-2 (*2) Below 1 ohms H7-3 (+) - Body ground 10 kohms or higher H7-1 (-) - Body ground 10 kohms or higher G8-3 (+) - Body ground 10 kohms or higher G8-1 (-) - Body ground 10 kohms or higher HINT: *1: for LH *2: for RH NG: REPAIR OR REPLACE HARNESS OR CONNECTOR (Scheme 24): Identifying H1 (*1) And H7 (*1), Or G1 (*2) And G8 (*2) Speaker Connectors OK: REPLACE FRONT NO. 1 SPEAKER ASSEMBLY
- CHECK HARNESS AND CONNECTOR (RADIO RECEIVER - FRONT NO. 2 SPEAKER) Disconnect the E47 receiver connector. Disconnect the H7 (*1) or G8 (*2) speaker connector. Measure the resistance of the wire harness side connectors. Standard resistance STANDARD RESISTANCE SPECIFICATIONS Tester Connection Specified Condition E47-2 (FL+) - H7-4 (TWL+) (*1) Below 1 ohms E47-6 (FL-) - H7-2 (TWL-) (*1) Below 1 ohms E47-1 (FR+) - G8-4 (TWR+) (*2) Below 1 ohms E47-5 (FR-) - G8-2 (TWR-) (*2) Below 1 ohms E47-1 (FR+) - Body ground 10 kohms or higher E47-5 (FR-) - Body ground 10 kohms or higher E47-2 (FL+) - Body ground 10 kohms or higher E47-6 (FL-) - Body ground 10 kohms or higher HINT: *1: for LH *2: for RH NG: REPAIR OR REPLACE HARNESS OR CONNECTOR (Scheme 25): Identifying E47 Receiver Connector And H7 (*1) Or G8 (*2) Speaker Connector OK: GO to next step
- INSPECT FRONT NO. 2 SPEAKER ASSEMBLY Check that the malfunction disappears when another speaker in good condition is installed. OK: Malfunction disappear. HINT: Connect all connectors to the speakers. When there is a possibility that either the right or left front speaker is defective, inspect by interchanging the right one with the left one. OK: REPLACE FRONT NO. 2 SPEAKER ASSEMBLY NG: PROCEED TO NEXT CIRCUIT INSPECTION SHOWN IN «PROBLEM SYMPTOMS TABLE»(ref-281538-S17652901512008031700000)
- CHECK HARNESS AND CONNECTOR (RADIO RECEIVER - REAR NO. 1 SPEAKER) Disconnect the E48 receiver connector. Disconnect the J2 (*1) or 12 (*2) receiver connector. Measure the resistance of the wire harness side connectors. Standard resistance STANDARD RESISTANCE SPECIFICATIONS Tester Connection Specified Condition E48-2 (RL+) - J2-1 (*1) Below 1 ohms E48-6 (RL-) - J2-2 (*1) Below 1 ohms E48-1 (RR+) - I2-1 (*2) Below 1 ohms E48-3 (RR-) - I2-2 (*2) Below 1 ohms E48-2 (RL+) - Body ground 10 kohms or higher E48-6 (RL-) - Body ground 10 kohms or higher E48-1 (RR+) - Body ground 10 kohms or higher E48-3 (RR-) - Body ground 10 kohms or higher HINT: *1: for LH *2: for RH NG: REPAIR OR REPLACE HARNESS OR CONNECTOR (Scheme 26): Identifying E48 Receiver Connector And J2 (*1) Or 12 (*2) Receiver Connector OK: GO to next step
- INSPECT REAR NO. 1 SPEAKER Measure the resistance according to the value(s) in the table below. Standard resistance STANDARD RESISTANCE SPECIFICATIONS Tester Connection Specified Condition 1 - 2 Approx. 4 ohms NG: REPLACE REAR NO. 1 SPEAKER ASSEMBLY see scheme 79: Identifying Front No. 1 Speaker Connector Terminals OK: PROCEED TO NEXT CIRCUIT INSPECTION SHOWN IN «PROBLEM SYMPTOMS TABLE»(ref-281538-S17652901512008031700000)
The circuit sends a sound signal from the radio receiver to the stereo component amplifier.
Sound Signal Wiring Diagram. Scheme 27
Scheme 28
- CHECK WIRE HARNESS (RADIO RECEIVER - STEREO COMPONENT AMPLIFIER) Disconnect the E62 receiver connector. Disconnect the L13 amplifier connector. Measure the resistance of the wire harness side connectors. Standard resistance STANDARD RESISTANCE SPECIFICATIONS Tester Connection Specified Condition E62-8 (R+) - L13-5 (R+) Below 1 ohms E62-18 (R-) - L13-4 (R-) Below 1 ohms E62-9 (L+) - L13-3 (L+) Below 1 ohms E62-19 (L-) - L13-2 (L-) Below 1 ohms E62-10 (SLD) - L13-6 (SLD) Below 1 ohms E62-8 (R+) - Body ground 10 kohms or higher E62-18 (R-) - Body ground 10 kohms or higher E62-9 (L+) - Body ground 10 kohms or higher E62-19 (L-) - Body ground 10 kohms or higher E62-10 (SLD) - Body ground 10 kohms or higher NG: REPAIR OR REPLACE HARNESS AND CONNECTOR (Scheme 28): Identifying E62 And L13 Connector Terminals OK: PROCEED TO NEXT INSPECTION PROCEDURE SHOWN IN «PROBLEM SYMPTOMS TABLE»(ref-281538-S17652901512008031700000)
This circuit sends an external device sound signal from the stereo jack adapter to the radio receiver.
Sound Signal Circuit Between Radio Receiver And Stereo Jack Adapter - Wiring Diagram. Scheme 29
Scheme 30
- CHECK WIRE HARNESS (RADIO RECEIVER - STEREO JACK ADAPTER) Disconnect the E49 receiver connector. Disconnect the E44 adapter connector. Measure the resistance of the wire harness side connectors. Standard resistance STANDARD RESISTANCE SPECIFICATIONS Tester Connection Specified Condition E49-17 (ALI) - E44-1 (ALO) Below 1 ohms E49-15 (ARI) - E44-2 (ARO) Below 1 ohms E49-16 (ASGN) - E44-3 (ASGN) Below 1 ohms E49-19 (AUXI) - E44-4 (AUXO) Below 1 ohms E49-17 (ALI) - Body ground 10 kohms or higher E49-15 (ARI) - Body ground 10 kohms or higher E49-16 (ASGN) - Body ground 10 kohms or higher E49-19 (AUXI) - Body ground 10 kohms or higher NG: REPAIR OR REPLACE HARNESS AND CONNECTOR (Scheme 30): Identifying E49 And E44 Connectors Terminals OK: PROCEED TO NEXT INSPECTION PROCEDURE SHOWN IN «PROBLEM SYMPTOMS TABLE»(ref-281538-S17652901512008031700000)
The circuit sends a signal to the stereo component amplifier to mute noise. Because of that, the noise produced by changing the sound source ceases.
Mute Signal Circuit Between Radio Receiver And Stereo Component Amplifier - Wiring Diagram. Scheme 31
Scheme 32
- CHECK WIRE HARNESS (RADIO RECEIVER - STEREO COMPONENT AMPLIFIER) Disconnect the E62 receiver connector. Disconnect the L13 amplifier connector. Measure the resistance of the wire harness side connectors. Standard resistance STANDARD RESISTANCE SPECIFICATIONS Tester Connection Specified Condition E62-7 (MUTE) - L13-1 (MUTE) Below 1 ohms NG: REPAIR OR REPLACE HARNESS AND CONNECTOR (Scheme 32): Identifying E62 And L13 Connectors Terminals OK: GO to next step
- INSPECT STEREO COMPONENT AMPLIFIER ASSEMBLY Replace the stereo component amplifier and check if it operates normally. OK: The audio system operates normally. OK: OK (REPLACE STEREO COMPONENT AMPLIFIER ASSEMBLY) NG: REPLACE RADIO RECEIVER ASSEMBLY
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.
AVC-LAN Wiring Diagram. Scheme 33
Scheme 34
Scheme 35
- INSPECT RADIO RECEIVER ASSEMBLY Disconnect the E62 and E64* receiver connectors. Measure the resistance of the receiver. Standard resistance STANDARD RESISTANCE SPECIFICATIONS Tester Connection Specified Condition E62-5 (ATX+) - E62-15 (ATX-) 60 to 80 ohms E64-9 (TXM+) - E64-10 (TXM-)* 60 to 80 ohms HINT: *: w/ Rear seat entertainment system NG: REPLACE RADIO RECEIVER ASSEMBLY see scheme 87: Identifying E62 And E64 Receiver Connectors OK: GO to next step
- CHECK WIRE HARNESS (RADIO RECEIVER - STEREO COMPONENT AMPLIFIER) Disconnect the E62 receiver connector. Disconnect the L13 amplifier connector. Measure the resistance of the wire harness side connectors. Standard resistance STANDARD RESISTANCE SPECIFICATIONS Tester Connection Specified Condition E62-5 (ATX+) - L13-8 (TX+) Below 1 ohms E62-15 (ATX-) - L13-7 (TX-) Below 1 ohms E62-5 (ATX+) - Body ground 10 kohms or higher E62-15 (ATX-) - Body ground 10 kohms or higher NG: REPAIR OR REPLACE HARNESS AND CONNECTOR (Scheme 34): Identifying E62 And L13 Connectors Terminals OK: GO to next step
- CHECK AUDIO SYSTEM Check the audio system. Result DTC RESULT DESCRIPTION Result Proceed to w/ Rear seat entertainment system A w/o Rear seat entertainment system B B: PROCEED TO NEXT INSPECTION PROCEDURE SHOWN IN «PROBLEM SYMPTOMS TABLE»(ref-281538-S17652901512008031700000) A: GO to next step
- CHECK WIRE HARNESS (RADIO RECEIVER - TELEVISION DISPLAY) Disconnect the E64 receiver connector. Disconnect the L16 display connector. Measure the voltage and resistance of the wire harness side connectors. Standard voltage STANDARD VOLTAGE SPECIFICATIONS Tester Connection Specified Condition E64-9 (TXM+) - L16-14 (TX+) 2 to 3 V E64-10 (TXM-) - L16-13 (TX-) 2 to 3 V Standard resistance STANDARD RESISTANCE SPECIFICATIONS Tester Connection Specified Condition E64-9 (TXM+) - Body ground 10 kohms or higher E64-10 (TXM-) - Body ground 10 kohms or higher NG: REPAIR OR REPLACE HARNESS AND CONNECTOR (Scheme 35): Disconnecting L16 Display Connector OK: PROCEED TO NEXT INSPECTION PROCEDURE SHOWN IN «PROBLEM SYMPTOMS TABLE»(ref-281538-S17652901512008031700000)
This circuit is used when the cellular phone voice in the "Bluetooth" handsfree system is on.
Cellular Phone Voice Circuit Between Radio Receiver And Stereo Component Amplifier - Wiring Diagram. Scheme 36
Scheme 37
- CHECK HARNESS AND CONNECTOR (RADIO RECEIVER - STEREO COMPONENT AMPLIFIER) Disconnect the E62 radio receiver connector and L13 stereo component amplifier connector. Measure the resistance according to the value(s) in the table below. Standard resistance STANDARD RESISTANCE SPECIFICATIONS Tester Connection Condition Specified Condition E62-11 (IVO+) - L13-15 (INT+) Always Below 1 ohms E62-12 (IVO-) - L13-14 (INT-) Always Below 1 ohms E62-11 (IVO+) - Body ground Always 10 kohms or higher E62-12 (IVO-) - Body ground Always 10 kohms or higher NG: REPAIR OR REPLACE HARNESS OR CONNECTOR (Scheme 37): Identifying E62 Radio Receiver Connector And L13 Stereo Component Amplifier Connector OK: PROCEED TO NEXT CIRCUIT INSPECTION SHOWN IN «PROBLEM SYMPTOMS TABLE»(ref-281538-S17652901512008031700000)
This circuit sends a microphone signal from the microphone to the radio receiver.
It also supplies power from the radio receiver to the microphone.
Microphone Circuit Between Microphone And Radio Receiver - Wiring Diagram. Scheme 38
Scheme 39
Scheme 40
Scheme 41
- INSPECT RADIO RECEIVER ASSEMBLY Measure the voltage according to the value(s) in the table below. Standard voltage STANDARD VOLTAGE SPECIFICATIONS Tester Connection Condition Specified Condition E76-7 (MCVD) - Body ground Ignition switch ACC 4 to 6 V NG: REPLACE RADIO RECEIVER ASSEMBLY (Scheme 39): Identifying E76 Connector Terminals OK: GO to next step
- CHECK HARNESS AND CONNECTOR (RADIO RECEIVER - BODY GROUND) Disconnect the E76 radio receiver connector. Measure the resistance according to the value(s) in the table below. Standard resistance STANDARD RESISTANCE SPECIFICATIONS Tester Connection Condition Specified Condition E76-3 (TSW-) - E76-6 (MGND) Always Below 1 ohms E76-3 (TSW-) - Body ground Always 10 kohms or higher NG: REPAIR OR REPLACE HARNESS OR CONNECTOR (Scheme 40): Identifying E76 Radio Receiver Connector Terminals OK: GO to next step
- CHECK HARNESS AND CONNECTOR (MICROPHONE - RADIO RECEIVER) Disconnect the M1 microphone connector. Measure the resistance according to the value(s) in the table below. Standard resistance STANDARD RESISTANCE SPECIFICATIONS Tester Connection Condition Specified Condition E76-7 (MCVD) - M1-3 (ACC) Always Below 1 ohms E76-2 (MIC+) - M1-2 (MI1+) Always Below 1 ohms E76-1 (MIC-) - M1-1 (MIC-) Always Below 1 ohms M1-3 (ACC) - Body ground Always 10 kohms or higher M1-2 (MIC+) - Body ground Always 10 kohms or higher M1-1 (MIC-) - Body ground Always 10 kohms or higher NG: REPAIR OR REPLACE HARNESS OR CONNECTOR (Scheme 41): Identifying M1 Microphone Connector Terminals OK: PROCEED TO NEXT CIRCUIT INSPECTION SHOWN IN «PROBLEM SYMPTOMS TABLE»(ref-281538-S17652901512008031700000)
Scheme 42
Scheme 43
- IDENTIFY THE COMPONENT SHOWN BY THE SUB-CODE Enter the diagnostic mode. (Scheme 42): Diagnostic Mode For Radio Receiver Communication Error Press the preset switch "2" 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 the " «DTC CHECK/CLEAR»(ref-281538-S23117168992008031700000) ".
- CHECK COMPONENT SHOWN BY SUB-CODE Select the component shown by sub-code. HINT: The "Bluetooth" handsfree module is built into the radio receiver. If there is a problem between the "Bluetooth" handsfree module and radio receiver, replace the radio receiver. Component Table: COMPONENT CHART Component Proceed to "Bluetooth" handsfree module (19D) A Except "Bluetooth" handsfree module B A: REPLACE RADIO RECEIVER ASSEMBLY B: GO to next step
- 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 CHART Component Proceed to Television display assembly (1B0) «TELEVISION DISPLAY POWER SOURCE CIRCUIT»(ref-281538-S41664366352008031700000) Stereo component amplifier (440) «STEREO COMPONENT AMPLIFIER POWER SOURCE CIRCUIT»(ref-281538-S28583564492008031700000)
- INSPECT RADIO RECEIVER ASSEMBLY Disconnect the E62 receiver connector. Measure the resistance of the receiver. Standard resistance STANDARD RESISTANCE SPECIFICATIONS Tester Connection Specified Condition E62-5 (ATX+) - E62-15 (ATX-) 60 to 80 ohms NG: REPLACE RADIO RECEIVER ASSEMBLY (Scheme 43): Identifying E62 Connector Terminals OK: GO to next step
- 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-281538-S42115619632008031700000) ". 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. 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. see scheme 98: AVC-LAN Wiring Diagram NG: REPAIR OR REPLACE HARNESS OR CONNECTOR OK: GO to next step
- 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 ASSEMBLY OK: END
This circuit provides power to the radio receiver.
Radio Receiver Power Source Wiring Diagram. Scheme 44
Scheme 45
- INSPECT FUSE (RAD NO. 1, ACC, ECU-B) Disconnect the RAD NO. 1 fuse from the No. 2 relay block. Disconnect the ACC fuse from the instrument panel junction block. Disconnect the ECU-B fuse from the engine room No. 2 relay block. Measure the resistance of the fuses. Standard resistance: Below 1 ohms NG: REPLACE FUSE OK: GO to next step
- CHECK HARNESS AND CONNECTOR (RADIO RECEIVER - BATTERY AND CONNECTOR) Disconnect the E47 (*2) or E62 (*1) and E76 (*1) receiver connectors. Measure the voltage and resistance of the wire harness side connector. Standard voltage STANDARD VOLTAGE SPECIFICATIONS Tester Connection Condition Specified Condition E62-1 (B) - Body ground (*1) Always 10 to 14 V E62-11 (ACC) - Body ground (*1) Ignition switch ACC 10 to 14 V E47-4 (B) - Body ground (*2) Always 10 to 14 V E47-3 (ACC) - Body ground (*2) Ignition switch ACC 10 to 14 V E76-5 (+B) - Body ground (*1) Always 10 to 14 V E76-16 (ACC) - Body ground (*1) Ignition switch ACC 10 to 14 V Standard resistance STANDARD RESISTANCE SPECIFICATIONS Tester Connection Specified Condition E62-20 (GND) - Body ground (*1) Below 1 ohms E47-7 (GND) - Body ground (*2) Below 1 ohms E76-14 (GND) - Body ground (*1) Below 1 ohms HINT: *1: for Premium sound models *2: for Standard models NG: REPAIR OR REPLACE HARNESS OR CONNECTOR (Scheme 45): Identifying E47 (*2) Or E62 (*1) And E76 (*1) Receiver Connectors OK: PROCEED TO NEXT CIRCUIT INSPECTION SHOWN IN «PROBLEM SYMPTOMS TABLE»(ref-281538-S17652901512008031700000)
This circuit provides power to the stereo component amplifier.
Stereo Component Amplifier Power Source Wiring Diagram. Scheme 46
Scheme 47
- INSPECT FUSE (ACC, AMP) Disconnect the AMP fuse from the engine room No. 1 relay block. Disconnect the ACC fuse from the instrument panel junction block. Measure the resistance of the fuses. Standard resistance: Below 1 ohms NG: REPLACE FUSE OK: GO to next step
- CHECK HARNESS AND CONNECTOR (STEREO COMPONENT AMPLIFIER - BATTERY AND CONNECTOR) Disconnect the L13, L14 and L15 amplifier connectors. Measure the voltage and resistance of the wire harness side connectors. Standard voltage STANDARD VOLTAGE SPECIFICATIONS Tester Connection Condition Specified Condition L13-12 (ACC) - Body ground Ignition switch ACC 10 to 14 V L15-1 (B) - Body ground Always 10 to 14 V L15-5 (+B2) - Body ground Always 10 to 14 V Standard resistance STANDARD RESISTANCE SPECIFICATIONS Tester Connection Specified Condition L14-7 (GND2) - Body ground Below 1 ohms L14-6 (GND) - Body ground Below 1 ohms NG: REPAIR OR REPLACE HARNESS OR CONNECTOR (Scheme 47): Identifying L13, L14 And L15 Amplifier Connectors OK: PROCEED TO NEXT CIRCUIT INSPECTION SHOWN IN «PROBLEM SYMPTOMS TABLE»(ref-281538-S17652901512008031700000)
This circuit provides power to the television display.
Television Display Power Source Wiring Diagram. Scheme 48
Scheme 49
- INSPECT FUSE (ACC, RSE) Remove the ACC fuse from the instrument panel junction block. Remove the RSE fuse from the No. 2 relay block. Standard resistance: Below 1 ohms NG: REPLACE FUSE OK: GO to next step
- CHECK HARNESS AND CONNECTOR (TELEVISION DISPLAY - BATTERY AND BODY GROUND) Disconnect the L16 display connector. Measure the voltage and resistance of the wire harness side connector. Standard voltage STANDARD VOLTAGE SPECIFICATIONS Tester Connection Condition Specified Condition L16-16 (+B) - Body ground Always 10 to 14 V L16-15 (ACC) - Body ground Ignition switch ACC 10 to 14 V Standard resistance STANDARD RESISTANCE SPECIFICATIONS Tester Connection Specified Condition L16-12 (GND) - Body ground Below 1 ohms NG: REPAIR OR REPLACE HARNESS OR CONNECTOR (Scheme 49): Identifying L16 Display Connector OK: PROCEED TO NEXT CIRCUIT INSPECTION SHOWN IN «PROBLEM SYMPTOMS TABLE»(ref-281538-S17652901512008031700000)
Identifying Rear Seat Entertainment System Components. Scheme 50
Rear Seat Entertainment System Diagram. Scheme 51
Scheme 52
- OUTLINE The RSE (Rear Seat Entertainment) system allows the front and rear seat occupants to select different audio-visual modes at the same time. The rear seat occupants can control the audio-visual modes with the remote controller, and listen to the audio using wireless headphones. The RSE system is controlled by the television display, and the communication between the audio head unit and the television display 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 Organization for Standardization). MP3 data is compressed audio data that is about 1/10 the size of a conventional disc's audio data.
- FUNCTION OF MAIN COMPONENTS FUNCTION OF MAIN COMPONENTS Television display DVD player Headphone terminal Displays DVD and video images. Receives signals from remote controller. Outputs audio signals to wireless headphones in the form of infrared signals. Outputs audio signals to wired headphones that are connected. Radio receiver Receives audio signals from the television display and outputs them to the stereo component amplifier. Enables or disables the function of the remote controller for television display. Remote controller Outputs various control signals of the RSE system to the television display in the form of infrared signals. Wireless headphones Receives the audio signals from the television display 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.
- DVD (Digital Versatile Disc) PLAYER OUTLINE (for TELEVISION DISPLAY) The DVD player can only play DVD videos that have any of the following marks: (Scheme 52): Identifying DVD Mark Precaution for use of discs NOTE: PAL or SECAM color television standard discs cannot be played. (Only NTSC discs can 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. Do not use uniquely-shaped CDs because these may cause player malfunctions. Do not use discs whose recording portion is transparent or translucent because they may not be able to be inserted, ejected, or played normally.
This is the sound signal circuit from the video terminal to the television display.
Sound Signal Circuit Between Video Terminal And Television Display - Wiring Diagram. Scheme 53
Scheme 54
Scheme 55
- CHECK WIRE HARNESS (TELEVISION DISPLAY - VIDEO TERMINAL) Disconnect the L16 display connector. Disconnect the L5 terminal connector. Measure the resistance of the wire harness side connectors. Standard resistance STANDARD RESISTANCE SPECIFICATIONS Tester Connection Specified Condition L16-7 (R1+) - L5-1 (VAR+) Below 1 ohms L16-8 (L1+) - L5-2 (VAL+) Below 1 ohms L16-23 (SGND) - L5-3 (VA-) Below 1 ohms L16-24 (ADPG) - L5-8 (ADPG) Below 1 ohms L16-7 (R1+) - Body ground 10 kohms or higher L16-8 (L1+) - Body ground 10 kohms or higher NG: REPAIR OR REPLACE HARNESS AND CONNECTOR (Scheme 54): Identifying L16 Display And L5 Terminal Connector OK: GO to next step
- CHECK VIDEO TERMINAL Using an oscilloscope, check the signal waveform between each terminal and body ground according to the conditions shown in the table below. OK TESTER CONNECTION AND SPECIFIED CONDITION Tester Connection Condition Specified Condition L5-1 (VAR+) - Body ground External device system is playing, sound is being produced Waveform synchronized with sound is output L5-2 (VAL+) - Body ground External device system Is playing, sound is being produced Waveform synchronized with sound is output NG: REPLACE VIDEO TERMINAL (Scheme 55): Checking Video Terminal OK: PROCEED TO NEXT CIRCUIT INSPECTION SHOWN IN «PROBLEM SYMPTOMS TABLE»(ref-281538-S09426000522008031700000)
This is the display signal circuit from the video terminal to the television display.
Display Signal Circuit Between Video Terminal And Television Display - Wiring Diagram. Scheme 56
Scheme 57
Scheme 58
- CHECK WIRE HARNESS (TELEVISION DISPLAY -VIDEO TERMINAL) Disconnect the L16 display connector. Disconnect the L5 terminal connector. Measure the resistance of the wire harness side connectors. Standard resistance STANDARD RESISTANCE SPECIFICATIONS Tester Connection Specified Condition L16-6 (VV+) - L5-5 (VV+) Below 1 ohms L16-22 (VV-) - L5-6 (VV-) Below 1 ohms L16-24 (ADPG) - L6-8 (ADPG) Below 1 ohms L16-6 (VV+) - Body ground 10 kohms or higher L16-22 (VV-) Body ground 10 kohms or higher NG: REPAIR OR REPLACE HARNESS AND CONNECTOR (Scheme 57): Identifying L5 Display And L6 Terminal Connector OK: GO to next step
- CHECK VIDEO TERMINAL Using an oscilloscope, check the waveform of the video terminal. OK: Waveform is as shown in the illustration. SYMBOLS (TERMINAL NO.) AND DESCRIPTION Item Content Symbols (Terminal No.) VV+ (L5-5) - Body ground Tool Setting 200 mV/DIV., 10 μsec./DIV. Condition RSE system playing NG: REPLACE VIDEO TERMINAL (Scheme 58): Checking Waveform Of Video Terminal OK: PROCEED TO NEXT INSPECTION PROCEDURE SHOWN IN «PROBLEM SYMPTOMS TABLE»(ref-281538-S09426000522008031700000)
This is the power source circuit of the television display.
Television Display Power Source Circuit - Wiring Diagram. Scheme 59
Scheme 60
- CHECK WIRE HARNESS (TELEVISION DISPLAY - BATTERY AND BODY GROUND) Disconnect the L16 display connector. Measure the resistance of the wire harness side connector. Standard resistance STANDARD RESISTANCE SPECIFICATIONS Tester Connection Specified Condition L16-12 (GND) - Body ground Below 1 ohms Measure the voltage of the wire harness side connector. Standard voltage STANDARD VOLTAGE SPECIFICATIONS Tester Connection Condition Specified Condition L16-16 (+B) - Body ground Always 10 to 14 V L16-15 (ACC) - Body ground Ignition switch on (ACC) 10 to 14 V NG: REPAIR OR REPLACE HARNESS AND CONNECTOR (Scheme 60): Identifying L16 Display Connector Terminals OK: PROCEED TO NEXT INSPECTION PROCEDURE SHOWN IN «PROBLEM SYMPTOMS TABLE»(ref-281538-S09426000522008031700000)
Identifying Radio Receiver Components. Scheme 61
Scheme 62
Scheme 63
Scheme 64
- DISCONNECT CABLE FROM NEGATIVE BATTERY TERMINAL CAUTION: Wait at least 90 seconds after disconnecting the cable from the negative (-) battery terminal to prevent airbag and seat belt pretensioner activation.
- REMOVE NO. 2 INSTRUMENT CLUSTER FINISH PANEL CENTER (see «REMOVAL»(/toyota/rav4/iii-2005-2010/remont/gauges-instrument-panels/#instrument-panel) )
- REMOVE NO. 1 INSTRUMENT CLUSTER FINISH PANEL CENTER (see «REMOVAL»(/toyota/rav4/iii-2005-2010/remont/gauges-instrument-panels/#instrument-panel) )
- REMOVE RADIO RECEIVER ASSEMBLY WITH BRACKET Remove the 4 bolts. Detach the 4 claws. Disconnect all the connectors and remove the radio receiver with bracket. (Scheme 62): Identifying Claws And Bolts Remove the 4 bolts and No. 1 radio bracket from the radio receiver. (Scheme 63): Locating No. 1 Radio Bracket Bolts Remove the 4 bolts and No. 2 radio bracket from the radio receiver. (Scheme 64): Locating No. 2 Radio Bracket Bolts