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Audio/visual: Overview Lexus ES XV40

Antenna Systems 59 illustrations ~4733 words

DESCRIPTION

DTC No.DTC Detection ConditionTrouble Area
01-21A malfunction exists in ROM.Radio receiver
01-22A malfunction exists in RAM.

DTC DETECTION CONDITION CHART

DTC No.DTC Detection ConditionTrouble Area
01-D5 *1, *3A device that the sub-code shows is (was) disconnected from the system when turning the engine switch on (ACC or IG). The communication condition with the device that the code shows cannot be obtained when the engine starts.Power source circuit of the component shown by the sub-code AVC-LAN circuit between the radio receiver and the component shown by the sub-code Component shown by the sub-code
01-D8 *2, *3The device indicated by the sub-code is (was) disconnected from the system after the engine starts.
01-D9 *1, *3The device that had functioned before the engine stopped is (was) disconnected from the system when the engine switch is (was) on (ACC or IG).
01-DA *3No response is identified when changing mode. Sound and image do not change by switch operation.
01-DB *1, *3A dual alarm is detected.
01-DE *3A slave device has been disconnected after the engine starts.
HINT: *1: Even if no fault is present, this trouble code may be stored depending on the battery condition or engine start voltage. *2: If the power connector is disconnected after the engine starts, this code is stored after 180 seconds. *3: 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 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.

DTC No.DTC Detection ConditionTrouble Area
01-D6 *1When either of the following conditions is met: The device that stores (stored) the code has (had) been disconnected when the engine switch is on (ACC or IG) The master device has (had) been disconnected when this code is storedRadio 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 *2When either of the following conditions 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 fault is present, this trouble code may be stored 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 engine switch on (ACC or IG), this code is stored.

DTC DETECTION CONDITION 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.

DTC No.DTC Detection ConditionTrouble Area
01-DCTransmission to component shown by sub-code failed (Detecting this DTC does not always mean actual failure)If the same sub-code is recorded in other components, check harness for power supply and communication system of all components shown by code

DTC DETECTION CONDITION CHART

Note. 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 ConditionTrouble Area
01-DDThe device that should be the master has been disconnected after engine startRadio receiver power source circuit AVC-LAN circuit between the radio receiver and the component which has stored this code Radio receiver Component which has stored this code
01-E1 *1The AMP device records that the AMP output does not function even while the source device operates
HINT: *1: Even if no fault is present, this trouble code may the stored depending on the battery condition or engine start voltage.

DTC DETECTION CONDITION 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.

DTC No.DTC Detection ConditionTrouble Area
01-DF *1The device with a display fails and the master is switched to the audio device. Also when a communication error between sub-master (audio) and master occurs, this code is stored.Radio receiver power source circuit AVC-LAN circuit between the radio receiver and the component which has stored this code Radio receiver Component which has stored this code
HINT: *1: When 210 seconds have elapsed after disconnecting the power supply connector of the master component with the engine switch on (ACC or IG), this code is stored.

DTC DETECTION CONDITION 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.

DTC No.DTC Detection ConditionTrouble Area
01-E0"Registration complete" signal from the master device cannot be received.
01-E3The registration demand signal from the slave device is output. Or the registration demand signal is output by receiving connection confirmation signal from the sub-master device.
01-E4The multiple frame transmission is incomplete.

DTC DETECTION CONDITION CHART

HINT

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

DTC No.DTC Detection ConditionTrouble Area
01-E2The command for ON/OFF control from the master device has a problem.Radio receiver

DTC DETECTION CONDITION CHART

DTC No.DTC Detection ConditionTrouble Area
57-47"Bluetooth" module is not installed. Problem with "Bluetooth" module Problem in communication line to "Bluetooth" moduleRadio receiver

DTC DETECTION CONDITION CHART

DTC No.DTC Detection ConditionTrouble Area
60-10AM tuner PLL (phase locked loop) synchronization is impossible.Radio receiver
60-11FM tuner PLL (phase locked loop) synchronization is impossible.

DTC DETECTION CONDITION CHART

DTC No.DTC Detection ConditionTrouble Area
60-42The power source of the tuner is abnormal.Radio receiver
60-43The AM tuner is abnormal.
60-44The FM tuner Is abnormal.
60-50A problem occurs In the IC Inside the tuner unit and radio reception Is not normal.

DTC DETECTION CONDITION CHART

DTC No.DTC Detection ConditionTrouble Area
63-10A mechanical error in the CD changer is detected while the CD is not being inserted or ejected.Radio receiver
63-11CD insertion or ejection is failed.
63-12CD read problem occurs.

DTC DETECTION CONDITION CHART

DTC No.DTC Detection ConditionTrouble Area
63-41An unsuitable disc is inserted.CD Radio receiver
63-42The disc cannot be read.

DTC DETECTION CONDITION CHART

DTC No.DTC Detection ConditionTrouble Area
63-43CD-ROM operation is abnormalCD Radio receiver

DTC DETECTION CONDITION CHART

DTC No.DTC Detection ConditionTrouble Area
63-44Operation error in the CD mechanismRadio receiver
63-48Excess current is present in the CD changer.
63-50Malfunction in insertion/ejection system

DTC DETECTION CONDITION CHART

DTC No.DTC Detection ConditionTrouble Area
63-45Magazine cannot be ejected.Radio receiver
63-51Mechanical error occurs during elevator operation.
63-52Error occurs in CD changer clamp.

DTC DETECTION CONDITION CHART

DTC No.DTC Detection ConditionTrouble Area
63-46Scratches or dirt is found on CD surface or CD is inserted upside down.CD Radio receiver

DTC DETECTION CONDITION CHART

DTC No.DTC Detection ConditionTrouble Area
63-47Sensor detects that CD unit temperature is high (Over 80°C (176°F))Radio receiver

DTC DETECTION CONDITION CHART

DTC No.DTC Detection ConditionTrouble Area
63-78An error occurs during the decode process (MP3/WMA)Radio receiver

DTC DETECTION CONDITION CHART

DTC No.DTC Detection ConditionTrouble Area
63-7DAn incompatible MP3/WMA file is used. Although the file has an extension of ".mp3" or ".wma", the header information/cannot be read.CD Radio receiver
63-7EA disc with no music data is used. Playable files are not on the disc (MP3/WMA).
63-7FA copy protected file, which cannot be played, is used.

DTC DETECTION CONDITION CHART

DTC No.DTC Detection ConditionTrouble Area
74-40A short is detected in the speaker output circuit.Wire harness Speaker Stereo component amplifier

DTC DETECTION CONDITION CHART

This circuit has a fail-safe function.

  1. When a short in the speaker circuit is detected, all sound outputs are stopped.

Scheme 1

Scheme 1: WIRING DIAGRAM
Scheme 1: WIRING DIAGRAM

Scheme 2

Scheme 2
Scheme 2

Scheme 3

Scheme 3
Scheme 3

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.

Scheme 4

Scheme 4: WIRING DIAGRAM
Scheme 4: WIRING DIAGRAM

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

Scheme 5

Scheme 5: WIRING DIAGRAM
Scheme 5: WIRING DIAGRAM

The sound signal that has been amplified by the stereo component amplifier is sent to the speakers from the stereo component amplifier through this 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.

Scheme 6

Scheme 6: WIRING DIAGRAM
Scheme 6: WIRING DIAGRAM

Scheme 7

Scheme 7: INSPECTION PROCEDURE
Scheme 7: INSPECTION PROCEDURE

Scheme 8

Scheme 8
Scheme 8

Scheme 9

Scheme 9
Scheme 9
  1. CHECK HARNESS AND CONNECTOR Disconnect the connectors shown in the illustration from the stereo component amplifier and speakers. Measure the resistance between the front center 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 front No. 2 speakers and stereo component amplifier to check for an open circuit in the wire harness. Standard resistance: Below 1 ohms without Rear Header Speaker: Measure the resistance between the front No. 2 speakers and front No. 1 speakers to check for an open circuit in the wire harness. Standard resistance: Below 1 ohms without Rear Header Speaker: Measure the resistance between the rear speakers and stereo component amplifier to check for an open circuit in the wire harness. Standard resistance: Below 1 ohms with Rear Header Speaker: Measure the resistance between the rear No. 2 speakers and stereo component amplifier to check for an open circuit in the wire harness. Standard resistance: Below 1 ohms with Rear Header Speaker: Measure the resistance between the rear No. 2 speakers and rear speakers to check for an open circuit in the wire harness. Standard resistance: Below 1 ohms with Rear Header Speaker: Measure the resistance between the rear header speakers and stereo component amplifier to check for an open circuit in the wire harness. Standard resistance: Below 1 ohms with Rear Header Speaker: Measure the resistance between the front No. 1 speakers and stereo component amplifier to check for an open circuit in the wire harness. Standard resistance: Below 1 ohms Measure the resistance between the stereo component speaker and stereo component amplifier to check for an open circuit in the wire harness. Standard resistance: Below 1 ohms NG: REPAIR OR REPLACE HARNESS OR CONNECTOR OK: Go to Next Step
  2. CONFIRM MODEL Result RESULT CHART Result Proceed to with Rear Header Speaker A without Rear Header Speaker B B: Go to step 10 A: Go to Next Step
  3. INSPECT FRONT CENTER SPEAKER Resistance check. Measure the resistance between the terminals of the speaker. Standard resistance: Approximately 8 ohms NG: REPLACE FRONT CENTER SPEAKER OK: Go to Next Step
  4. INSPECT FRONT NO. 1 SPEAKER Resistance check. Measure the resistance between the terminals of the speaker. Standard resistance: Approximately 8 ohms NG: REPLACE FRONT NO. 1 SPEAKER OK: Go to Next Step
  5. INSPECT FRONT NO. 2 SPEAKER Check that the malfunction disappears when another speaker in good condition is installed. OK: 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. NG: REPLACE FRONT NO. 2 SPEAKER OK: Go to Next Step
  6. INSPECT REAR SPEAKER Resistance check. Measure the resistance between the terminals of the speaker. Standard resistance: Approximately 8 ohms NG: REPLACE REAR SPEAKER OK: Go to Next Step
  7. INSPECT REAR NO. 2 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 No. 2 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. Perform the above inspection on both LH and RH sides. NG: REPLACE REAR NO. 2 SPEAKER OK: Go to Next Step
  8. INSPECT REAR HEADER SPEAKER Resistance check. Measure the resistance between the terminals of the speaker. Standard resistance: Approximately 8 ohms NG: REPLACE REAR HEADER SPEAKER OK: Go to Next Step
  9. INSPECT STEREO COMPONENT SPEAKER Resistance check. Measure the resistance between the terminals of the speaker. Standard resistance RESISTANCE SPECIFICATION Tester Connection Condition Specified Condition WF1+ - WF1- Always Approximately 8 ohms NG: REPLACE STEREO COMPONENT SPEAKER OK: PROCEED TO NEXT CIRCUIT INSPECTION SHOWN IN PROBLEM SYMPTOMS TABLE
  10. INSPECT FRONT CENTER SPEAKER Resistance check. Measure the resistance between the terminals of the speaker. Standard resistance: Approximately 10 ohms NG: REPLACE FRONT CENTER SPEAKER OK: Go to Next Step
  11. INSPECT FRONT NO. 1 SPEAKER Resistance check. Measure the resistance between the terminals of the speaker. Standard resistance: Approximately 4 ohms NG: REPLACE FRONT NO. 1 SPEAKER OK: Go to Next Step
  12. 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. NG: REPLACE FRONT NO. 2 SPEAKER OK: Go to Next Step
  13. INSPECT REAR SPEAKER Resistance check. Measure the resistance between the terminals of the speaker. Standard resistance: Approximately 4 ohms NG: REPLACE REAR SPEAKER OK: Go to Next Step
  14. INSPECT STEREO COMPONENT SPEAKER Resistance check. Measure the resistance between the terminals of the speaker. Standard resistance RESISTANCE SPECIFICATION Tester Connection Condition Specified Condition WF1+ - WF1- Always Approximately 2.5 ohms WF2+ - WF2- Always Approximately 2.5 ohms NG: REPLACE 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.

Scheme 10

Scheme 10: WIRING DIAGRAM
Scheme 10: WIRING DIAGRAM

Scheme 11

Scheme 11: INSPECTION PROCEDURE
Scheme 11: INSPECTION PROCEDURE
  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 RESISTANCE SPECIFICATION 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 stereo jack adapter (audio terminal) 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, 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.

Scheme 12

Scheme 12: WIRING DIAGRAM
Scheme 12: WIRING DIAGRAM

Scheme 13

Scheme 13: INSPECTION PROCEDURE
Scheme 13: INSPECTION PROCEDURE
  1. CHECK HARNESS AND CONNECTOR (RADIO RECEIVER - STEREO JACK ADAPTER (AUDIO TERMINAL)) Disconnect the connectors from the stereo jack adapter (audio terminal) and radio receiver. Measure the resistance according to the value(s) in the table below. Standard resistance RESISTANCE SPECIFICATION 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 ARO - Body ground Always 10 kohms or higher ALO - 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

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.

Scheme 14

Scheme 14: WIRING DIAGRAM
Scheme 14: WIRING DIAGRAM

Scheme 15

Scheme 15: INSPECTION PROCEDURE
Scheme 15: INSPECTION PROCEDURE

Scheme 16

Scheme 16
Scheme 16

Scheme 17

Scheme 17
Scheme 17
  1. INSPECT STEREO COMPONENT AMPLIFIER Measure the voltage according to the value(s) in the table below. Standard voltage VOLTAGE SPECIFICATION Tester Connection Condition Specified Condition MUTE - Body ground Turn engine switch on (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 E69 and stereo component amplifier connector M30. Measure the resistance according to the values in the table below. Standard resistance RESISTANCE SPECIFICATION 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. INSPECT STEREO COMPONENT AMPLIFIER Reconnect the stereo component amplifier connector M30. Measure the voltage according to the value(s) in the table below. Standard voltage VOLTAGE SPECIFICATION Tester Connection Condition Specified Condition MUTE - Body ground Turn engine switch on (ACC), Audio system is playing Above 3.5 V NG: REPLACE STEREO COMPONENT AMPLIFIER OK: 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.

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.

Scheme 18

Scheme 18: WIRING DIAGRAM
Scheme 18: WIRING DIAGRAM

Scheme 19

Scheme 19: INSPECTION PROCEDURE
Scheme 19: INSPECTION PROCEDURE

Scheme 20

Scheme 20
Scheme 20

Scheme 21

Scheme 21
Scheme 21

Scheme 22

Scheme 22
Scheme 22
  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 M30. Measure the voltage. Jack up either one of the drive wheels. Move the shift lever to the neutral position. Turn the engine switch on (IG). Measure the voltage between terminal SPD of the wire harness connector 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 M30 and combination meter connector E20. Measure the resistance according to the value(s) in the table below. Standard resistance RESISTANCE SPECIFICATION Tester Connection Condition Specified Condition SPD - +S Engine 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 M30 and combination meter connector E20. Measure the resistance according to the value(s) in the table below. Standard resistance RESISTANCE SPECIFICATION Tester Connection Condition Specified Condition SPD - Body ground Engine 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

SYSTEM DESCRIPTION

This circuit is used when the cellular phone voice in the "Bluetooth" handsfree system is on.

Scheme 23

Scheme 23: WIRING DIAGRAM
Scheme 23: WIRING DIAGRAM

Scheme 24

Scheme 24: INSPECTION PROCEDURE
Scheme 24: INSPECTION PROCEDURE
  1. CHECK HARNESS AND CONNECTOR (RADIO RECEIVER - STEREO COMPONENT AMPLIFIER) Disconnect the radio receiver connector E70 and stereo component amplifier connector M30. Measure the resistance according to the value(s) in the table below. Standard resistance RESISTANCE SPECIFICATION Tester connection Condition Specified condition IO1+ - II1+ Always Below 1 ohms IO1- - II1- Always Below 1 ohms IO1+ - Body ground Always 10 kohms or higher IO1- -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

This circuit sends a microphone signal from the microphone to the radio receiver. It also supplies power from the radio receiver to the microphone.

Scheme 25

Scheme 25: WIRING DIAGRAM
Scheme 25: WIRING DIAGRAM

Scheme 26

Scheme 26: INSPECTION PROCEDURE
Scheme 26: INSPECTION PROCEDURE

Scheme 27

Scheme 27
Scheme 27

Scheme 28

Scheme 28
Scheme 28
  1. INSPECT RADIO RECEIVER Measure the voltage according to the value(s) in the table below. Standard voltage VOLTAGE SPECIFICATION Tester Connection Condition Specified Condition MCVD - Body ground Engine switch on (ACC) 4 to 6 V NG: REPLACE RADIO RECEIVER OK: Go to Next Step
  2. CHECK HARNESS AND CONNECTOR (RADIO RECEIVER - BODY GROUND) Disconnect the radio receiver connector. Measure the resistance according to the value(s) in the table below. Standard resistance RESISTANCE SPECIFICATION Tester Connection Condition Specified Condition TSW- - MGND Always Below 1 ohms TSW- - Body ground Always 10 kohms or higher NG: REPAIR OR REPLACE HARNESS OR CONNECTOR OK: Go to Next Step
  3. CHECK HARNESS AND CONNECTOR (OVERHEAD J/B (MICROPHONE) - RADIO RECEIVER) Disconnect the overhead J/B (microphone) connector. Measure the resistance according to the value(s) in the table below. Standard resistance RESISTANCE SPECIFICATION Tester Connection Condition Specified Condition MCVD - ACC Always Below 1 ohms MI1+ - MIC+ Always Below 1 ohms MIC- - MIC- Always Below 1 ohms ACC - Body ground Always 10 kohms or higher MIC+ - Body ground Always 10 kohms or higher MIC- - 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 main body ECU sends a panel illumination signal to the radio receiver through this circuit.

The main body ECU determines the ambient brightness based on the light level detected by the automatic light control sensor and performs dim control.

Scheme 29

Scheme 29: WIRING DIAGRAM
Scheme 29: WIRING DIAGRAM

Scheme 30

Scheme 30: INSPECTION PROCEDURE
Scheme 30: INSPECTION PROCEDURE

Scheme 31

Scheme 31
Scheme 31
  1. CHECK HARNESS AND CONNECTOR (RADIO RECEIVER - BODY ECU) Disconnect the radio receiver connector E70 and main body ECU connector E60. Measure the resistance according to the values in the table below. Standard resistance RESISTANCE SPECIFICATION Tester connection Condition Specified condition ADIM - ACAN Always Below 1 ohms ADIM - Body ground Always 10 kohms or higher NG: REPAIR OR REPLACE HARNESS OR CONNECTOR OK: Go to Next Step
  2. INSPECT RADIO RECEIVER Connect the main body ECU connector. Turn the engine switch on (IG). Turn the light control switch to the TAIL or HEAD position. Measure the voltage according to the value(s) in the table below. Standard voltage VOLTAGE SPECIFICATION Tester connection Condition Specified condition ADIM - Body ground Light control switch in TAIL or HEAD 10 to 14 V NG: GO TO LIGHTING SYSTEM (See «HOW TO PROCEED WITH TROUBLESHOOTING»(ref-283105-S30806638572008041700000) ) OK: PROCEED TO NEXT CIRCUIT INSPECTION SHOWN IN PROBLEM SYMPTOMS TABLE

The radio receiver sends only DVD 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, only DVD sound cannot be heard from the speakers even if there is no malfunction in the stereo component amplifier or speakers.

Scheme 32

Scheme 32: WIRING DIAGRAM
Scheme 32: WIRING DIAGRAM

Scheme 33

Scheme 33: INSPECTION PROCEDURE
Scheme 33: INSPECTION PROCEDURE
  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 RESISTANCE SPECIFICATION Tester Connection Condition Specified Condition DVD - DVD Always Below 1 ohms DVD - 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

Scheme 34

Scheme 34: INSPECTION PROCEDURE
Scheme 34: INSPECTION PROCEDURE
  1. IDENTIFY THE COMPONENT SHOWN BY 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-283118-S14856988092008041700000) ."
  2. 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 B: Go to Next Step
  3. 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 Stereo component amplifier (440) (See «STEREO COMPONENT AMPLIFIER POWER SOURCE CIRCUIT»(ref-283118-S06430737822008041700000) )
  4. INSPECT RADIO RECEIVER Disconnect the radio receiver connectors. Measure the resistance according to the value(s) in the table below. Standard resistance RESISTANCE SPECIFICATION Tester Connection Condition Specified Condition ATX+ - ATX- Always 60 to 80 ohms NG: REPLACE RADIO RECEIVER OK: Go to Next Step
  5. 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-283118-S07097139302008041700000) ." 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
  6. 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

This circuit provides power to the radio receiver.

Scheme 35

Scheme 35: WIRING DIAGRAM
Scheme 35: WIRING DIAGRAM

Scheme 36

Scheme 36: INSPECTION PROCEDURE
Scheme 36: INSPECTION PROCEDURE
  1. INSPECT RADIO RECEIVER Disconnect the radio receiver connectors E69 and E73. Measure the resistance according to the value in the table below. Standard resistance RESISTANCE SPECIFICATION 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 VOLTAGE SPECIFICATION Tester Connection Condition Specified Condition B - GND Always 10 to 14 V +B - GND ( (1) ) Always 10 to 14 V ACC - GND Engine switch on (ACC) 10 to 14 V (1) for Radio Receiver with Built-in "Bluetooth" Handsfree Function 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 37

Scheme 37: WIRING DIAGRAM
Scheme 37: WIRING DIAGRAM

Scheme 38

Scheme 38: INSPECTION PROCEDURE
Scheme 38: INSPECTION PROCEDURE
  1. INSPECT STEREO COMPONENT AMPLIFIER Disconnect the stereo component amplifier connectors. Measure the resistance according to the values in the table below. Standard resistance RESISTANCE SPECIFICATION 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 VOLTAGE SPECIFICATION Tester Connection Condition Specified Condition +B - GND Always 10 to 14 V +B2 - GND Always 10 to 14 V ACC - GND Engine switch on (ACC) 10 to 14 V NG: REPAIR OR REPLACE HARNESS OR CONNECTOR OK: PROCEED TO NEXT CIRCUIT INSPECTION SHOWN IN PROBLEM SYMPTOMS TABLE

Scheme 39

Scheme 39: COMPONENTS
Scheme 39: COMPONENTS

Scheme 40

Scheme 40
Scheme 40

Scheme 41

Scheme 41: REMOVAL
Scheme 41: REMOVAL

Scheme 42

Scheme 42
Scheme 42

Scheme 43

Scheme 43
Scheme 43

Scheme 44

Scheme 44
Scheme 44

Scheme 45

Scheme 45
Scheme 45

Scheme 46

Scheme 46
Scheme 46

Scheme 47

Scheme 47
Scheme 47

Scheme 48

Scheme 48
Scheme 48
  1. REMOVE SHIFT LEVER KNOB SUB-ASSEMBLY (See «REMOVAL»(/lexus/es/xv40-2006-2009/remont/gauges-instrument-panels/#instrument-panel__removal) )
  2. REMOVE UPPER CONSOLE PANEL ASSEMBLY WITH FRONT ASH RECEPTACLE (See «REMOVAL»(/lexus/es/xv40-2006-2009/remont/gauges-instrument-panels/#instrument-panel__removal) )
  3. REMOVE INSTRUMENT PANEL FINISH PANEL END LH (See «REMOVAL»(/lexus/es/xv40-2006-2009/remont/gauges-instrument-panels/#instrument-panel__removal) )
  4. REMOVE INSTRUMENT PANEL FINISH PANEL END RH (See «REMOVAL»(/lexus/es/xv40-2006-2009/remont/gauges-instrument-panels/#instrument-panel__removal) )
  5. REMOVE NO. 2 INSTRUMENT PANEL REGISTER ASSEMBLY (See «REMOVAL»(/lexus/es/xv40-2006-2009/remont/gauges-instrument-panels/#instrument-panel__removal) )
  6. REMOVE INTEGRATION CONTROL PANEL WITH RADIO RECEIVER ASSEMBLY (w/o Navigation System) Remove the 4 bolts. Pull the integration control panel with radio receiver assembly toward the rear of the vehicle and disengage the 2 clips. Disconnect each connector and remove the integration control panel with radio receiver assembly.
  7. REMOVE NO. 1 RADIO BRACKET (w/o Navigation System) Remove the 4 bolts, screw, and No. 1 radio bracket.
  8. REMOVE NO. 2 RADIO BRACKET (w/o Navigation System) Remove the 4 bolts, screw, and No. 2 radio bracket.
  9. REMOVE RADIO RECEIVER ASSEMBLY (w/o Navigation System) Disengage the 2 claws and 6 clips. Remove the radio receiver assembly.
  10. REMOVE MULTI-DISPLAY WITH RADIO RECEIVER ASSEMBLY (w/ Navigation System) Remove the 4 bolts. Pull the multi-display with radio receiver assembly toward the rear of the vehicle and disengage the 2 clips. Disconnect each connector and remove the multi-display with radio receiver assembly.
  11. REMOVE NO. 1 RADIO BRACKET (w/ Navigation System) Remove the 6 bolts and No. 1 radio bracket.
  12. REMOVE NO. 2 RADIO BRACKET (w/ Navigation System) Remove the 6 bolts and No. 2 radio bracket.
  13. REMOVE RADIO RECEIVER ASSEMBLY (w/ Navigation System) Disengage the 2 claws and 4 clips. Remove the radio receiver assembly.

Scheme 49

Scheme 49
Scheme 49
  1. INSTALL RADIO RECEIVER ASSEMBLY (w/o Navigation System) Engage the 2 claws and 6 clips and install the radio receiver assembly.
  2. INSTALL NO. 2 RADIO BRACKET (w/o Navigation System) Install the No. 2 radio bracket with the 4 bolts and screw.
  3. INSTALL NO. 1 RADIO BRACKET (w/o Navigation System) Install the No. 1 radio bracket with the 4 bolts and screw.
  4. INSTALL INTEGRATION CONTROL PANEL WITH RADIO RECEIVER ASSEMBLY (w/o Navigation System) Connect each connector. Engage the 2 clips. Install the integration control panel with radio receiver assembly with the 4 bolts.
  5. INSTALL RADIO RECEIVER ASSEMBLY (w/ Navigation System) Engage the 2 claws and 4 clips and install the radio receiver assembly.
  6. INSTALL NO. 2 RADIO BRACKET (w/ Navigation System) Install the No. 2 radio bracket with the 6 bolts.
  7. INSTALL NO. 1 RADIO BRACKET (w/ Navigation System) Install the No. 1 radio bracket with the 6 bolts.
  8. INSTALL MULTI-DISPLAY WITH RADIO RECEIVER ASSEMBLY (w/ Navigation System) Connect each connector. Engage the 2 clips. Install the multi-display with radio receiver assembly with the 4 bolts.
  9. INSTALL INSTRUMENT PANEL FINISH PANEL END LH (See «INSTALLATION»(/lexus/es/xv40-2006-2009/remont/gauges-instrument-panels/#instrument-panel) )
  10. INSTALL INSTRUMENT PANEL FINISH PANEL END RH (See «INSTALLATION»(/lexus/es/xv40-2006-2009/remont/gauges-instrument-panels/#instrument-panel) )
  11. INSTALL UPPER CONSOLE PANEL ASSEMBLY WITH FRONT ASH RECEPTACLE (See «INSTALLATION»(/lexus/es/xv40-2006-2009/remont/gauges-instrument-panels/#instrument-panel) )
  12. INSTALL NO. 2 INSTRUMENT PANEL REGISTER ASSEMBLY (See «INSTALLATION»(/lexus/es/xv40-2006-2009/remont/gauges-instrument-panels/#instrument-panel) )
  13. INSTALL SHIFT LEVER KNOB SUB-ASSEMBLY (See «INSTALLATION»(/lexus/es/xv40-2006-2009/remont/gauges-instrument-panels/#instrument-panel) )
  14. ADJUST CLOCK

Scheme 50

Scheme 50: COMPONENTS
Scheme 50: COMPONENTS

Scheme 51

Scheme 51
Scheme 51

Scheme 52

Scheme 52: REMOVAL
Scheme 52: REMOVAL

Scheme 53

Scheme 53
Scheme 53

Scheme 54

Scheme 54
Scheme 54

Scheme 55

Scheme 55
Scheme 55
  1. REMOVE LUGGAGE COMPARTMENT FLOOR MAT
  2. REMOVE SPARE WHEEL COVER TRAY
  3. REMOVE LUGGAGE HOLD BELT STRIKER ASSEMBLY (See «ON-VEHICLE INSPECTION»(ref-283122-S14482357792008041700000) )
  4. REMOVE NO. 1 LUGGAGE COMPARTMENT TRIM HOOK (See «DISASSEMBLY»(ref-283122-S28841380792008041700000) )
  5. REMOVE REAR FLOOR FINISH PLATE (See «DISASSEMBLY»(ref-283122-S28841380792008041700000) )
  6. REMOVE LUGGAGE COMPARTMENT INNER TRIM COVER RH Remove the 3 clips and the luggage compartment inner trim cover RH.
  7. REMOVE CLEARANCE WARNING ECU ASSEMBLY (w/ Intuitive Parking Assist System) (See «REMOVAL»(ref-283129-S40366196672008041700000) )
  8. REMOVE SEAT BELT CONTROL ECU (w/ Pre-collision System) (See «REMOVAL»(ref-283085-S12718141352008041700000) )
  9. REMOVE STEREO COMPONENT AMPLIFIER ASSEMBLY WITH BRACKET Disconnect each connector. Remove the 3 nuts and the stereo component amplifier assembly with bracket.
  10. REMOVE NO. 1 AMPLIFIER BRACKET Remove the 2 bolts and the No. 1 amplifier bracket.
  11. REMOVE NO. 2 AMPLIFIER BRACKET Remove the 2 bolts and the No. 2 amplifier bracket.
  12. REMOVE STEREO COMPONENT AMPLIFIER ASSEMBLY

Scheme 56

Scheme 56
Scheme 56

Scheme 57

Scheme 57
Scheme 57
  1. INSTALL STEREO COMPONENT AMPLIFIER ASSEMBLY
  2. INSTALL NO. 2 AMPLIFIER BRACKET Install the No. 2 amplifier bracket with the 2 bolts.
  3. INSTALL NO. 1 AMPLIFIER BRACKET Install the No. 1 amplifier bracket with the 2 bolts.
  4. INSTALL STEREO COMPONENT AMPLIFIER ASSEMBLY WITH BRACKET Install the stereo component amplifier assembly with bracket with the 3 nuts. Connect each connector.
  5. INSTALL SEAT BELT CONTROL ECU (w/ Pre-collision System) (See «INSTALLATION»(ref-283085-S20290873882008041700000) )
  6. INSTALL CLEARANCE WARNING ECU ASSEMBLY (w/ Intuitive Parking Assist System) (See «INSTALLATION»(ref-283129-S09030858812008041700000) )
  7. INSTALL LUGGAGE COMPARTMENT INNER TRIM COVER RH Install the luggage compartment inner trim cover RH with the 3 clips.
  8. INSTALL REAR FLOOR FINISH PLATE (See «REASSEMBLY»(ref-283122-S23367543842008041700000) )
  9. INSTALL NO. 1 LUGGAGE COMPARTMENT TRIM HOOK (See «REASSEMBLY»(ref-283122-S23367543842008041700000) )
  10. INSTALL LUGGAGE HOLD BELT STRIKER ASSEMBLY (See «REASSEMBLY»(ref-283122-S23367543842008041700000) )
  11. INSTALL SPARE WHEEL COVER TRAY
  12. INSTALL LUGGAGE COMPARTMENT FLOOR MAT

Scheme 58

Scheme 58: COMPONENTS
Scheme 58: COMPONENTS

Scheme 59

Scheme 59
Scheme 59

See also:
• AIRBAG SYSTEM
• REMOVAL
• INSTALLATION
• REMOVAL

More articles — Audio/visual