DESCRIPTION
| DTC No. | DTC Detection Condition | Trouble Area |
|---|---|---|
| 01-21 | A ROM malfunction exists. | Radio receiver |
| 01-22 | A RAM malfunction exists. |
DTC DETECTION CONDITION AND TROUBLE AREA
| DTC No. | DTC Detection Condition | Trouble Area |
|---|---|---|
| 01-D5 *1, *3 | A device indicated by the sub-code is (was) disconnected from the system while the ignition switch is 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, *3 | The device indicated by the sub-code is (was) disconnected from the system after the engine starts. | |
| 01-D9 *1, *3 | The device that had functioned before the engine stopped is (was) disconnected from the system while the ignition switch is (was) on (ACC or IG). | |
| 01-DA *3 | No response is identified when changing mode. Sound and image do not change by switch operation. | |
| 01-DB *1, *3 | A dual alarm is detected. | |
| 01-DE *3, *4 | A 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. *4: This code may be stored if the engine is started and the ignition switch is turned to the START position again. (Key type ignition switch only) | ||
DTC DETECTION CONDITION AND TROUBLE AREA
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 of the following conditions is met: The device that stores (stored) the code has (had) been disconnected while the ignition switch is on (ACC or IG) 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 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 ignition switch on (ACC or IG), this code is stored. | ||
DTC DETECTION CONDITION AND TROUBLE AREA
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 *1 | Transmission 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 |
| HINT: *1: This code may be stored if the engine is started, idled for 60 seconds and then started again. (Key type ignition switch only) | ||
DTC DETECTION CONDITION AND TROUBLE AREA
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. 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.
| DTC No. | DTC Detection Condition | Trouble Area |
|---|---|---|
| 01-DD *2 | The device that should be the master has been disconnected after engine start | 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 |
| 01-E1 *1 | The 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 be stored depending on the battery condition or engine start voltage. *2: This code may be stored if the engine is started and the ignition switch is turned to the START position again. (Key type ignition switch only) | ||
DTC DETECTION CONDITION AND TROUBLE AREA
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 *1 | The 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 ignition switch on (ACC or IG), this code is stored. | ||
DTC DETECTION CONDITION AND TROUBLE AREA
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 |
|---|---|
| 01-E0 | "Registration complete" signal from the master device cannot be received. |
| 01-E3 | The 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-E4 | The multiple frame transmission is incomplete. |
DTC DETECTION CONDITION AND TROUBLE AREA
HINT
Even if no fault is present, this a trouble code may be stored depending on the battery condition or engine start voltage.
| DTC No. | DTC Detection Condition | Trouble Area |
|---|---|---|
| 01-E2 | The command for ON / OFF control from the master device has a problem. | Radio receiver |
DTC DETECTION CONDITION AND TROUBLE AREA
| 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
| 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
| 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
| DTC No. | DTC Detection Condition | Trouble Area |
|---|---|---|
| 63-10 | A mechanical error in the CD changer is detected while the CD is not being inserted or ejected. | Radio receiver |
| 63-11 | CDs cannot be inserted or ejected. | |
| 63-12 | CD read problem occurs. |
DTC DETECTION CONDITION AND TROUBLE AREA
| DTC No. | DTC Detection Condition | Trouble Area |
|---|---|---|
| 63-40 | No disc is inserted. | Radio receiver |
DTC DETECTION CONDITION AND TROUBLE AREA
| DTC No. | DTC Detection Condition | Trouble Area |
|---|---|---|
| 63-41 | An unsuitable disc is inserted. | CD Radio receiver |
| 63-42 | The disc cannot be read. |
DTC DETECTION CONDITION AND TROUBLE AREA
| DTC No. | DTC Detection Condition | Trouble Area |
|---|---|---|
| 63-43 | CD-ROM operation is abnormal | CD Radio receiver |
DTC DETECTION CONDITION AND TROUBLE AREA
| DTC No. | DTC Detection Condition | Trouble Area |
|---|---|---|
| 63-44 | Operation error in the CD mechanism | Radio receiver |
| 63-48 | Excess current is present in the CD changer. | |
| 63-50 | Malfunction in insertion/ejection system |
DTC DETECTION CONDITION AND TROUBLE AREA
| DTC No. | DTC Detection Condition | Trouble Area |
|---|---|---|
| 63-45 | Magazine cannot be ejected. | Radio receiver |
| 63-51 | Mechanical error occurs during elevator operation. | |
| 63-52 | Error occurs in CD changer clamp. |
DTC DETECTION CONDITION AND TROUBLE AREA
| DTC No. | DTC Detection Condition | Trouble Area |
|---|---|---|
| 63-46 | Scratches or dirt is found on CD surface or CD is inserted upside down. | CD Radio receiver |
DTC DETECTION CONDITION AND TROUBLE AREA
| DTC No. | DTC Detection Condition | Trouble Area |
|---|---|---|
| 63-47 | Sensor detects that CD unit temperature is high. (Over 80°C (176°F)) | Radio receiver |
DTC DETECTION CONDITION AND TROUBLE AREA
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 by the steering pad switch.
If there is a short in the circuit, the resulting condition is the same as if the switch were continuously depressed. Therefore, the radio receiver cannot be operated by the steering pad switch, and the radio receiver itself cannot function.
Scheme 1
Receiving a dimmer signal from the light control switch, the radio receiver dims the display and illuminates the panel switches and the steering pad switch.
Scheme 2
The sound signal that has been amplified by the stereo component amplifier or radio receiver is sent to the speakers from the stereo component amplifier or radio receiver 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.
There are two cases when a short is detected.
- When a short is detected in the rear No. 2 speaker circuit, sound cannot be heard only from the rear No. 2 speaker.
- When a short is detected in any circuit other than the rear No. 2 speaker circuit, sound cannot be heard from all speakers including the rear No. 2 speaker.
Scheme 3
Scheme 4
Scheme 5
Scheme 6
Scheme 7
Scheme 8
Scheme 9
- CHECK HARNESS AND CONNECTOR Disconnect the connectors shown in the illustration from the stereo component amplifier or the radio receiver and speakers. Measure the resistance between speakers or between a speaker and the stereo component amplifier or the radio receiver to check for an open circuit in the wire harness. Standard resistance: Below 1 ohms Measure the resistance between body ground and the stereo component amplifier to check for a short circuit in the wire harness. Standard resistance: 10 kohms or higher NG: REPAIR OR REPLACE HARNESS OR CONNECTOR OK: Go to Next Step
- INSPECT FRONT NO. 1 SPEAKER Resistance check Measure the resistance between the terminals of the speakers. Standard resistance: 9 Speaker System: Approximately 4 ohms 12 Speaker System: 1.8 to 2.6 ohms NG: REPLACE FRONT NO. 1 SPEAKER OK: Go to Next Step
- 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 speakers. When there is a possibility that either the right or left front speaker is defective, inspect it by interchanging the right one with the left one. OK : REPLACE FRONT NO. 2 SPEAKER NG: Go to Next Step
- INSPECT REAR SPEAKER Resistance check Measure the resistance between the terminals of the speaker. Standard resistance: 9 Speaker System: 3.2 to 4.8 ohms 12 Speaker System: 1.8 to 2.6 ohms NG: REPLACE REAR SPEAKER OK: Go to Next Step
- INSPECT STEREO COMPONENT SPEAKER Check that the malfunction disappears when another speaker in good condition is installed. OK: Malfunction disappears. HINT: Connect all the connectors to the speakers. When there is a possibility that either the right or left front speaker is defective, inspect it by interchanging the right one with the left one. OK : REPLACE STEREO COMPONENT SPEAKER NG: Go to Next Step
- INSPECT FRONT STEREO COMPONENT SPEAKER Resistance check Measure the resistance between the terminals of the front stereo component speaker. Standard resistance 9 Speaker System RESISTANCE SPECIFICATION Tester Connection Condition Specified Condition + (E10-1) - - (E10-2) Always Approx. 40 ohms + (E10-3) - - (E10-4) Always Approx. 40 ohms 12 Speaker System RESISTANCE SPECIFICATION Tester Connection Condition Specified Condition E10-1 - E10-2 Always 1.5 to 2.1 ohms NG: REPLACE FRONT STEREO COMPONENT SPEAKER OK: Go to Next Step
- INSPECT REAR NO. 2 SPEAKER HINT: If the vehicle is not equipped with a rear No. 2 speaker, proceed to the next step. Resistance check Measure the resistance between the terminals of the speaker. Standard resistance: 1.8 to 2.6 ohms NG: REPLACE REAR NO. 2 SPEAKER OK: Go to Next Step
- INSPECT ROOF SPEAKER HINT: If the vehicle is not equipped with a roof speaker, proceed to the next step. Resistance check Measure the resistance between the terminals of the speaker. Standard resistance: 1.5 to 2.1 ohms NG: REPLACE ROOF 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 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 11
- CHECK HARNESS AND CONNECTOR (RADIO RECEIVER - STEREO COMPONENT AMPLIFIER) Disconnect the radio receiver connector and the stereo component amplifier connector. 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 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 13
- CHECK HARNESS AND CONNECTOR (RADIO RECEIVER - STEREO JACK ADAPTER (AUDIO TERMINAL)) Disconnect the stereo jack adapter (audio terminal) connector and 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 AUXO - AUXI Always Below 1 ohms ASGN - ASGN Always Below 1 ohms ARO - ARI Always Below 1 ohms ALO - ALI Always Below 1 ohms AUXG - AUXG 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 AUXG - 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 functioning, no sound, or only an extremely faint sound, can be heard.
Scheme 14
Scheme 15
Scheme 16
- 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 ignition switch on (ACC), Audio system is playing --> Changing mode Above 3.5 V --> Below 1 V NG: Go to step 2 OK : PROCEED TO NEXT CIRCUIT INSPECTION SHOWN IN PROBLEM SYMPTOMS TABLE
- CHECK HARNESS AND CONNECTOR (RADIO RECEIVER - STEREO COMPONENT AMPLIFIER) Disconnect the radio receiver connector and the stereo component amplifier connector. 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
- REPLACE STEREO COMPONENT AMPLIFIER Replace the stereo component amplifier and check that it operates normally. OK: The audio system operates normally. OK : END NG: REPLACE RADIO RECEIVER
Each audio system component connected to the AVC-LAN (communication bus) transfers switch signals by the audio visual communication local area network.
When a short to +B or short to ground occurs in this AVC-LAN, the audio system will not function normally as communication is stopped.
The circuit is necessary for the ASL (Automatic Sound Levelizer) 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 volume in order to enable clear audio even when vehicle noise increases (as vehicle noise increases, the volume is turned up etc.).
HINT
- 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.
- If a short occurs in any of the ECUs or in the wire harness connected to an ECU, all systems in the diagram below will not operate normally.
Scheme 17
Scheme 18
Scheme 19
Scheme 20
- CHECK SPEEDOMETER Drive the vehicle and check if the speedometer in the combination meter functions normally. OK: Actual vehicle speed and the speed indicated on the speedometer are the same. HINT: The vehicle speed sensor is functioning normally when the indicated speed on the speedometer is accurate. NG: GO TO «COMBINATION METER SYSTEM»(ref-291102-S42787779762008072400000) OK: Go to Next Step
- INSPECT STEREO COMPONENT AMPLIFIER Disconnect the stereo component amplifier connector. Measure voltage. Jack up either one of the drive wheels. Move the shift lever to the neutral position. Turn the ignition switch on (IG). Measure the voltage between terminal SPD of the stereo component amplifier and body ground when the drive wheels are turned slowly. OK: Voltage pulses as shown in the illustration. OK : REPLACE STEREO COMPONENT AMPLIFIER NG: Go to Next Step
- CHECK HARNESS AND CONNECTOR (COMBINATION METER - STEREO COMPONENT AMPLIFIER) Disconnect the stereo component amplifier connector and the combination meter connector. Measure the resistance according to the value(s) in the table below. Standard resistance RESISTANCE SPECIFICATION Tester Connection Condition Specified Condition SPD - +S Ignition switch off Below 1 ohms NG: REPAIR OR REPLACE HARNESS OR CONNECTOR OK: Go to Next Step
- CHECK HARNESS AND CONNECTOR (COMBINATION METER - STEREO COMPONENT AMPLIFIER) Disconnect the Stereo component amplifier connector and the combination meter connector. Measure the resistance according to the value(s) in the table below. Standard resistance RESISTANCE SPECIFICATION Tester Connection Condition Specified Condition SPD - Body ground Ignition switch off 10 kohms or higher HINT: If the resistance between terminal SPD and the body ground is less than 10 kohms, there may be a short in a wire harness, connector, or ECU. NG: REPAIR OR REPLACE HARNESS OR CONNECTOR OR EACH ECU OK : REPLACE COMBINATION METER
SYSTEM DESCRIPTION
This circuit is used when an incoming cellular phone voice in the "Bluetooth" handsfree system is received.
Scheme 21
Scheme 22
- CHECK HARNESS AND CONNECTOR (RADIO RECEIVER - STEREO COMPONENT AMPLIFIER) Disconnect the radio receiver connector and the stereo component amplifier connector. Measure the resistance according to the value(s) in the table below. Standard resistance RESISTANCE SPECIFICATION Tester Connection Condition Specified Condition IVO+ - INT+ Always Below 1 ohms IVO- - INT- Always Below 1 ohms IVO+ - Body ground Always 10 kohms or higher IVO- - Body ground Always 10 kohms or higher SLD1 - 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 23
Scheme 24
Scheme 25
Scheme 26
- 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 Ignition switch on (ACC) 4 to 6 V NG: REPLACE RADIO RECEIVER OK: Go to Next Step
- 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
- CHECK HARNESS AND CONNECTOR (MICROPHONE - RADIO RECEIVER) Disconnect the microphone connector. Measure the resistance according to the value(s) in the table below. Standard resistance RESISTANCE SPECIFICATION Tester Connection Condition Specified Condition MCVD - ACC1 Always Below 1 ohms MIC+ - MIC+ Always Below 1 ohms MIC- - MIC- Always Below 1 ohms ACC1 - 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
Scheme 27
- IDENTIFY THE COMPONENT SHOWN BY SUB-CODE Enter the diagnostic mode. Press the preset switch "3" to change the mode to "Detailed Information Mode". Identify the component shown by the sub-code. HINT: For example, "190 (radio receiver)" is the component shown by the sub-code as Shown in the illustration. For details of the DTC display, refer to " «DTC CHECK / CLEAR»(ref-291142-S10144075922008072400000) ".
- CHECK COMPONENT WHICH HAS STORED THIS CODE Select the component which has stored this 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 TABLE Component Proceed to Except "Bluetooth" handsfree module A "Bluetooth" handsfree module (19D) B B : REPLACE RADIO RECEIVER A: 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 TABLE Component Proceed to Radio receiver (190) Radio receiver power source circuit (See «RADIO RECEIVER POWER SOURCE CIRCUIT»(ref-291142-S21030406512008072400000) ) Stereo component amplifier (440) Stereo component amplifier power source circuit (See «STEREO COMPONENT AMPLIFIER POWER SOURCE CIRCUIT»(ref-291142-S24870992812008072400000) ) Multi-display (Accessory meter) (1D4) Multi-display power source circuit (See «MULTI-DISPLAY POWER SOURCE CIRCUIT»(ref-291142-S24770614712008072400000) )
- 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 TX+ (E15-9) - TX- (E15-10) Always 60 to 80 ohms ATX+ (E12-5) - ATX- (E12-15)f1) Always 60 to 80 ohms HINT: *1: for 12 Speaker System NG: REPLACE RADIO RECEIVER OK: Go to Next Step
- CHECK HARNESS AND CONNECTOR (GATEWAY ECU - COMPONENT SHOWN BY SUB-CODE) HINT: Start the check from the circuit that is near the component shown by the sub-code first. For details of the connectors, refer to " «TERMINALS OF ECU»(ref-291142-S19035772602008072400000) ". Referring to the AVC-LAN wiring diagram below, check the AVC-LAN circuit between the gateway ECU and the component shown by the sub-code. Disconnect all connectors between the gateway ECU and the component shown by sub-code. Check for an open or short in the AVC-LAN circuit between the gateway ECU 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
- 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 GATEWAY ECU OK : END
This circuit provides power to the radio receiver.
Scheme 28
Scheme 29
- 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 GND - Body ground Always Below 1 ohms Measure the voltage according to the value(s) in the table below. Standard voltage VOLTAGE SPECIFICATION Tester Connection Condition Specified Condition B - GND Always 10 to 14 V +B - GND Always 10 to 14 V ACC - GND Ignition 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
This circuit provides power to the stereo component amplifier.
Scheme 30
Scheme 31
- INSPECT STEREO COMPONENT AMPLIFIER Disconnect the stereo component amplifier connectors. Measure the resistance according to the value(s) 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 value(s) 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 Ignition 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
This is the power source circuit to operate the multi-display (accessory meter).
Scheme 32
Scheme 33
- INSPECT MULTI-DISPLAY (ACCESSORY METER) Disconnect the multi-display (accessory meter) connector. Measure the resistance according to the value(s) in the table below. Standard resistance RESISTANCE SPECIFICATION Tester Connection Condition Specified Condition GND1 - Body ground Always Below 1 ohms SG - Body ground Always Below 1 ohms Measure the voltage according to the value(s) in the table below. Standard voltage VOLTAGE SPECIFICATION Tester Connection Condition Specified Condition +B - GND1 Always 10 to 14 V ACC - GND1 Ignition switch on (ACC) 10 to 14 V IG - GND1 Ignition switch on (IG) 10 to 14 V NG: REPAIR OR REPLACE HARNESS OR CONNECTOR OK : PROCEED TO NEXT CIRCUIT INSPECTION SHOWN IN PROBLEM SYMPTOMS TABLE
This is the power source circuit to operate the gateway ECU.
Scheme 34
Scheme 35
- INSPECT GATEWAY ECU Disconnect the gateway ECU connector. Measure the resistance according to the value(s) 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 value(s) in the table below. Standard voltage VOLTAGE SPECIFICATION Tester Connection Condition Specified Condition BATT - GND Always 10 to 14 V ACC - GND Ignition switch on (ACC) 10 to 14 V IG - GND Ignition switch on (IG) 10 to 14 V NG: REPAIR OR REPLACE HARNESS OR CONNECTOR OK : PROCEED TO NEXT CIRCUIT INSPECTION SHOWN IN PROBLEM SYMPTOMS TABLE
Scheme 36
Scheme 37
Scheme 38
Scheme 39
- REMOVE INSTRUMENT CLUSTER FINISH PANEL GARNISH NO. 1 (See «REMOVAL»(/toyota/avalon/xx30-2007-2010/remont/gauges-instrument-panels/#instrument-panel) )
- REMOVE INSTRUMENT CLUSTER FINISH PANEL GARNISH NO. 2 (See «REMOVAL»(/toyota/avalon/xx30-2007-2010/remont/gauges-instrument-panels/#instrument-panel) )
- REMOVE INSTRUMENT PANEL FINISH PLATE (w/o Smart Key System) (See «REMOVAL»(/toyota/avalon/xx30-2007-2010/remont/gauges-instrument-panels/#instrument-panel) )
- REMOVE INSTRUMENT PANEL SUB-ASSEMBLY (See «REMOVAL»(/toyota/avalon/xx30-2007-2010/remont/gauges-instrument-panels/#instrument-panel) )
- REMOVE INSTRUMENT CLUSTER FINISH PANEL SUB-ASSEMBLY CENTER (See «REMOVAL»(ref-291136-S35853878292008072400000) )
- REMOVE RADIO RECEIVER ASSEMBLY WITH BRACKET Remove the 4 bolts and pull the radio receiver assembly w/ bracket toward you. Disconnect all connectors and remove the radio receiver assembly w/ bracket.
- REMOVE RADIO BRACKET NO. 1 Remove the 3 bolts and radio bracket No. 1 from the radio receiver assembly w/ bracket.
- REMOVE RADIO BRACKET NO. 2 Remove the 3 bolts and radio bracket No. 2 from the radio receiver assembly w/ bracket.
- REMOVE RADIO RECEIVER ASSEMBLY
Scheme 40
- INSTALL RADIO RECEIVER ASSEMBLY
- INSTALL RADIO BRACKET NO. 2
- INSTALL RADIO BRACKET NO. 1
- INSTALL RADIO RECEIVER ASSEMBLY WITH BRACKET
- INSTALL INSTRUMENT CLUSTER FINISH PANEL SUB-ASSEMBLY CENTER
- INSTALL INSTRUMENT PANEL SUB-ASSEMBLY
- INSTALL INSTRUMENT PANEL FINISH PLATE (w/o Smart Key System)
- INSTALL INSTRUMENT CLUSTER FINISH PANEL GARNISH NO. 2
- INSTALL INSTRUMENT CLUSTER FINISH PANEL GARNISH NO. 1
Scheme 41
Scheme 42
Scheme 43
- TABLE OF BOLT, SCREW AND NUT (See «REMOVAL»(/toyota/avalon/xx30-2007-2010/remont/gauges-instrument-panels/#instrument-panel) )
- DISCONNECT CABLE FROM NEGATIVE BATTERY TERMINAL Wait for 90 seconds after disconnecting the cable to prevent the airbag working.
- REMOVE STEERING WHEEL COVER LOWER NO. 2 (See «REMOVAL»(/toyota/avalon/xx30-2007-2010/remont/airbag/#supplemental-restraint-system) )
- REMOVE STEERING WHEEL COVER LOWER NO. 3 (See «REMOVAL»(/toyota/avalon/xx30-2007-2010/remont/airbag/#supplemental-restraint-system) )
- REMOVE STEERING PAD (See «REMOVAL»(/toyota/avalon/xx30-2007-2010/remont/airbag/#supplemental-restraint-system) )
- REMOVE STEERING WHEEL ASSEMBLY (See «REMOVAL»(ref-291118-S32044295912008072400000) )
- REMOVE STEERING COLUMN COVER (See «REMOVAL»(ref-291118-S32044295912008072400000) )
- REMOVE TURN SIGNAL SWITCH ASSEMBLY WITH SPIRAL CABLE (See «REMOVAL»(ref-291118-S32044295912008072400000) )
- REMOVE INSTRUMENT CLUSTER FINISH PANEL GARNISH NO. 1 (See «REMOVAL»(/toyota/avalon/xx30-2007-2010/remont/gauges-instrument-panels/#instrument-panel) )
- REMOVE INSTRUMENT CLUSTER FINISH PANEL GARNISH NO. 2 (See «REMOVAL»(/toyota/avalon/xx30-2007-2010/remont/gauges-instrument-panels/#instrument-panel) )
- REMOVE INSTRUMENT PANEL FINISH PLATE (See «REMOVAL»(/toyota/avalon/xx30-2007-2010/remont/gauges-instrument-panels/#instrument-panel) )
- REMOVE INSTRUMENT PANEL SUB-ASSEMBLY (See «REMOVAL»(/toyota/avalon/xx30-2007-2010/remont/gauges-instrument-panels/#instrument-panel) )
- REMOVE INSTRUMENT CLUSTER FINISH PANEL SUB-ASSEMBLY CENTER (See «REMOVAL»(ref-291136-S35853878292008072400000) )
- REMOVE INSTRUMENT CLUSTER FINISH PANEL SUB-ASSEMBLY (See «REMOVAL»(/toyota/avalon/xx30-2007-2010/remont/gauges-instrument-panels/#instrument-panel) )
- REMOVE ACCESSORY METER ASSEMBLY (See «REMOVAL»(/toyota/avalon/xx30-2007-2010/remont/gauges-instrument-panels/#instrument-panel) )
- REMOVE MULTI DISPLAY Disengage the 9 claws and remove the back cover. Remove the 4 screws and multi display.
Scheme 44
- INSTALL MULTI DISPLAY
- INSTALL ACCESSORY METER ASSEMBLY
- INSTALL INSTRUMENT CLUSTER FINISH PANEL SUB-ASSEMBLY
- INSTALL INSTRUMENT CLUSTER FINISH PANEL SUB-ASSEMBLY CENTER
- INSTALL INSTRUMENT PANEL SUB-ASSEMBLY
- INSTALL INSTRUMENT PANEL FINISH PLATE
- INSTALL INSTRUMENT CLUSTER FINISH PANEL GARNISH NO. 2
- INSTALL INSTRUMENT CLUSTER FINISH PANEL GARNISH NO. 1
- INSTALL TURN SIGNAL SWITCH ASSEMBLY WITH SPIRAL CABLE
- INSTALL STEERING COLUMN COVER
- ADJUST SPIRAL CABLE (See «INSTALLATION»(/toyota/avalon/xx30-2007-2010/remont/airbag/#supplemental-restraint-system) )
- INSTALL STEERING WHEEL ASSEMBLY (See «INSTALLATION»(ref-291118-S22871630342008072400000) )
- INSTALL STEERING PAD (See «INSTALLATION»(/toyota/avalon/xx30-2007-2010/remont/airbag/#supplemental-restraint-system) )
- CONNECT CABLE TO NEGATIVE BATTERY TERMINAL
- PERFORM SYSTEM INITIALIZE (See «INSTALLATION»(/toyota/avalon/xx30-2007-2010/remont/airbag/#supplemental-restraint-system) )
- INSPECT STEERING PAD (See «INSTALLATION»(/toyota/avalon/xx30-2007-2010/remont/airbag/#supplemental-restraint-system) )
- INSPECT SRS WARNING LIGHT (See «INSTALLATION»(/toyota/avalon/xx30-2007-2010/remont/airbag/#supplemental-restraint-system) )
Scheme 45
Scheme 46
See also:
• REMOVAL
• PRECAUTION