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Audio / Visual (Diagnostic Codes & Circuit Tests): Other Lexus GS III рестайлинг

Entertainment Systems 14 illustrations ~7026 words

PROCEDURE

  1. REPLACE MULTI-DISPLAY NEXT --> END
  1. CHECK "MULTI-DISPLAY COMMUNICATION ERROR" IN FLOWCHART Refer to the multi-display communication error. Refer to «Multi-display Communication Error»(ref-387172-S42762454122011022400000) . NEXT --> END
  1. CHECK FOR DTC OF OTHER COMPONENTS Check if the component shown by the sub-code is displayed in the check result of the other components. Check if "01-DC" is output for the other components. If "01-DC" is output for any other components, check if the same physical address is displayed. HINT: For the list of the components shown by sub-codes, refer to the table in the next step. Result Result Proceed to "01-DC" is output and the same physical address is displayed A "01-DC" is not output or the same physical address is not displayed B B --> See step 4 A: Go to next step
  2. IDENTIFY COMPONENT WHICH HAS STORED THIS CODE Enter the diagnostic mode. Press the "LAN Mon" switch to change to "LAN Monitor" mode. Identify the component which has stored this code. COMPONENT TABLE Display Component AUDIO H/U Radio receiver DSP-AMP Stereo component amplifier G/W Gateway ECU EMV Multi-display HINT: "G/W" is the component which has stored this code in the example shown in the illustration. NEXT: Go to next step
  3. CHECK COMPONENT WHICH HAS STORED THIS CODE Select the component which has stored this code. COMPONENT TABLE Component Proceed to Gateway ECU (G/W) Gateway ECU communication error. Refer to «Gateway ECU Communication Error»(ref-387172-S24452525902011022400000) Radio receiver (AUDIO H/U) Radio receiver communication error. Refer to «Radio Receiver Communication Error»(ref-387172-S17462467042011022400000) Stereo component amplifier (DSP-AMP) Stereo component amplifier communication error. Refer to «Stereo Component Amplifier Communication Error»(ref-387172-S37520812652011022400000) Multi-display (EMV) Multi-display communication error. Refer to «Multi-display Communication Error»(ref-387172-S42762454122011022400000) NEXT --> END
  4. CLEAR DTC Clear the DTCs. Refer to «DTC CHECK / CLEAR»(ref-387171-S27895678712011022400000) . HINT: If "01-DC" is output for only one component, this may not indicate a malfunction. NEXT: Go to next step
  5. RECHECK DTC Recheck for DTCs and check if the same trouble occurs again. OK Malfunction disappears. NG --> See step 3 OK --> END
  1. CHECK MULTI-DISPLAY POWER SOURCE CIRCUIT Refer to the multi-display power source circuit. Refer to «Multi-display Power Source Circuit»(ref-387173-S38893476092011022400000) . If the power source circuit is operating normally, proceed to the next step. NEXT: Go to next step
  2. INSPECT RADIO RECEIVER Disconnect the K53, K54 and K56 receiver connectors. Measure the resistance of the receiver. Standard resistance Tester Connection Specified Condition K53-9 (TXM+) - K53-10 (TXM-) 60 to 80 ohms K54-5 (ATX+) - K54-15 (ATX-) 60 to 80 ohms K56-9 (TX+) - K56-10 (TX-) 60 to 80 ohms NG --> REPLACE RADIO RECEIVER ASSEMBLY OK: Go to next step
  3. IDENTIFY COMPONENT WHICH HAS STORED THIS CODE Enter the diagnostic mode. Press the "LAN Mon" switch to change to "LAN Monitor" mode. Identify the component which has stored this code. COMPONENT TABLE Display Component AUDIO H/U Radio receiver DSP-AMP Stereo component amplifier G/W Gateway ECU HINT: "G/W" is the component which has stored this code in the example shown in the illustration. NEXT: Go to next step
  4. CHECK WIRE HARNESS (MULTI-DISPLAY - COMPONENT WHICH HAS STORED THIS CODE) HINT: For details of the connectors, refer to "TERMINALS OF ECU". Refer to «TERMINALS OF ECU»(ref-387171-S34649818612011022400000) . Referring to the AVC-LAN wiring diagram below, check the AVC-LAN circuit between the multi-display and the component which has stored this code. Disconnect all connectors between the multi-display and the component which has stored this code. Check for an open or short in the AVC-LAN circuit between the multi-display and the component which has stored this code. OK There is no open or short circuit. NG --> REPAIR OR REPLACE HARNESS OR CONNECTOR OK: Go to next step
  5. REPLACE MULTI-DISPLAY WITH NORMAL ONE AND CHECK Replace the multi-display with a normal one and check if the same problem occurs again. OK Same problem does not occur. NG --> REPLACE COMPONENT WHICH HAS STORED THIS CODE OK --> END
  1. REPLACE MULTI-DISPLAY NEXT --> END
  1. REPLACE MULTI-DISPLAY NEXT --> END
  1. REPLACE MULTI-DISPLAY NEXT --> END
  1. REPLACE RADIO RECEIVER NEXT --> END
  1. CHECK IF A PROPER DISC IS INSERTED Make sure that the DVD is a video DVD or a CD with an MP3 or WMA file, and that it is not deformed, flawed, stained, burred, or otherwise defective. OK Normal disc HINT: Translucent or uniquely-shaped DVDs or CDs cannot be played. For details on playable DVDs or CDs, refer to the Owner's Manual. NG --> DISC IS FAULTY OK: Go to next step
  2. CHANGE DISC Replace the disc with another and recheck. Replace the disc with a normal one. Clear the DTCs. Refer to «DTC CHECK / CLEAR»(ref-387171-S27895678712011022400000) . Recheck for DTCs and check if the same trouble occurs again. OK Malfunction disappears. NG --> REPLACE RADIO RECEIVER OK --> END
  1. CLEAR DTC Clear the DTCs. Refer to «DTC CHECK / CLEAR»(ref-387171-S27895678712011022400000) . NEXT: Go to next step
  2. RECHECK DTC Recheck for DTCs and check if the same trouble occurs again. HINT: If DTCs are detected frequently, replace the radio receiver. OK Malfunction disappears. NG --> REPLACE RADIO RECEIVER OK --> END
  1. CHECK RADIO RECEIVER Check if a disc can be changed, inserted, or ejected normally. OK Malfunction disappears. NG --> REPLACE RADIO RECEIVER OK --> END
  1. CHECK THAT DISC IS INSERTED PROPERLY Check whether or not the disc is inserted upside down. OK Disc is properly inserted. NG --> INSERT DISC PROPERLY OK: Go to next step
  2. CHECK DISC Check that the disc is not deformed or cracked. OK No deformation or cracks on the disc. NG --> CHANGE DISC OK: Go to next step
  3. DISC CLEANING Disc cleaning If dirt is on the disc surface, wipe it clean with a soft cloth from the inside to the outside in a radial direction. NOTE: Do not use a conventional record cleaner or antistatic preservative. NEXT: Go to next step
  4. CLEAR DTC Clear the DTC. Refer to «DTC CHECK / CLEAR»(ref-387171-S27895678712011022400000) . NEXT: Go to next step
  5. RECHECK DTC Recheck DTCs and check if the same trouble occurs again. OK Malfunction disappears. OK --> END NG: Go to next step
  6. REPLACE DISC WITH ANOTHER AND RECHECK Replace the disc and recheck. Replace the disc with a normal one. Clear the DTCs. Refer to «DTC CHECK / CLEAR»(ref-387171-S27895678712011022400000) . Recheck for DTCs and check if the same trouble occurs again. OK Malfunction disappears. NG --> REPLACE RADIO RECEIVER OK --> END
  1. CHECK RADIO RECEIVER Park the vehicle in a cool place. Check that the temperature of the radio receiver has become sufficiently low, and start the engine. Check that the malfunction disappears. OK Malfunction disappears. NG --> REPLACE RADIO RECEIVER OK --> END
  1. CLEAR DTC Clear the DTCs. Refer to «DTC CHECK / CLEAR»(ref-387171-S27895678712011022400000) . NEXT: Go to next step
  2. RECHECK DTC Recheck for DTCs and check if the same trouble code occurs again. OK Malfunction disappears. NG --> REPLACE RADIO RECEIVER OK --> END
  1. CHANGE DISC Insert a disc with a playable file and check if the disc can be played correctly. HINT: For details on playable files and discs, refer to the Owner's Manual. OK The disc can be played correctly. NG --> REPLACE RADIO RECEIVER OK --> DISC IS FAULTY
  1. REPLACE MULTI-DISPLAY NEXT --> END
  1. REPLACE RADIO RECEIVER ASSEMBLY NEXT --> END
  1. CLEAR DTC Clear the DTCs. Refer to «DTC CHECK / CLEAR»(ref-387171-S27895678712011022400000) . NEXT: Go to next step
  2. RECHECK DTC Recheck for DTCs and check if the same trouble occurs again. HINT: If DTCs are detected frequently, replace the radio receiver. OK Malfunction disappears. NG --> REPLACE RADIO RECEIVER OK --> END
  1. REPLACE RADIO RECEIVER NEXT --> END
  1. CHECK DISC Check that the disc is not deformed or cracked. OK No deformations or cracks on the disc. NG --> CHANGE DISC OK: Go to next step
  2. DISC CLEANING Disc cleaning If dirt is on the disc surface, wipe it clean with a soft cloth from inside to outside in a radial direction. NOTE: Do not use a conventional record cleaner or anti-static preservative. NEXT: Go to next step
  3. CLEAR DTC Clear the DTCs. Refer to «DTC CHECK / CLEAR»(ref-387171-S27895678712011022400000) . NEXT: Go to next step
  4. RECHECK DTC Recheck for DTCs and check if the same trouble occurs again. OK Malfunction disappears. OK --> END NG: Go to next step
  5. REPLACE DISC WITH ANOTHER AND RECHECK Replace the disc and recheck. Replace the disc with a normal one. Clear the DTCs. Refer to «DTC CHECK / CLEAR»(ref-387171-S27895678712011022400000) . Recheck for DTCs and check if the same trouble occurs again. OK Malfunction disappears. NG --> REPLACE RADIO RECEIVER OK --> END
  1. CHECK IF A PROPER CD IS INSERTED Make sure that the CD is an audio CD or a CD with an MP3 or WMA file, and that it is not deformed, flawed, stained, burred, or otherwise defective. OK Normal CD HINT: Translucent or uniquely-shaped CDs cannot be played. CD with adhesive paper labels should not be played. Commercial audio CDs can be played. CD-DA files on CD-ROMs, CD-Rs, and CD-RWs can be played. MP3 and WMA files on CD-ROMs, CD-Rs, and CD-RWs can be played. For details on playable CDs, refer to the Owner's Manual. NG --> CD IS FAULTY OK: Go to next step
  2. REPLACE CD WITH ANOTHER AND RECHECK Replace the CD and recheck. Replace the CD with a normal one. Clear the DTCs. Refer to «DTC CHECK / CLEAR»(ref-387171-S27895678712011022400000) . Recheck for DTCs and check if the same trouble occurs again. OK Malfunction disappears. NG --> REPLACE RADIO RECEIVER OK --> END
  1. CLEAR DTC Clear the DTCs. Refer to «DTC CHECK / CLEAR»(ref-387171-S27895678712011022400000) . NEXT: Go to next step
  2. RECHECK DTC Recheck for DTCs and check if the same trouble occurs again. HINT: If DTCs are detected frequently, replace the radio receiver. OK Malfunction disappears. NG --> REPLACE RADIO RECEIVER OK --> END
  1. CHECK RADIO RECEIVER Check if a disc can be changed, inserted, or ejected normally. OK Malfunction disappears. NG --> REPLACE RADIO RECEIVER OK --> END
  1. CHECK THAT CD IS INSERTED PROPERLY Check that the CD is not inserted upside down. OK CD is properly inserted. NG --> INSERT CD PROPERLY OK: Go to next step
  2. CHECK DISC Check that the disc is not deformed or cracked. OK No deformations or cracks on the disc. NG --> CHANGE DISC OK: Go to next step
  3. DISC CLEANING Disc cleaning If dirt is on the disc surface, wipe it clean with a soft cloth from the inside to the outside in a radial direction. NOTE: Do not use a conventional record cleaner or anti-static preservative. NEXT: Go to next step
  4. CLEAR DTC Clear the DTCs. Refer to «DTC CHECK / CLEAR»(ref-387171-S27895678712011022400000) . NEXT: Go to next step
  5. RECHECK DTC Recheck for DTCs and check if the same trouble occurs again. OK Malfunction disappears. OK --> END NG: Go to next step
  6. REPLACE DISC WITH ANOTHER AND RECHECK Replace the disc and recheck. Replace the disc with a normal one. Clear the DTCs. Refer to «DTC CHECK / CLEAR»(ref-387171-S27895678712011022400000) . Recheck for DTCs and check if the same trouble occurs again. OK Malfunction disappears. NG --> REPLACE RADIO RECEIVER OK --> END
  1. CHECK RADIO RECEIVER Park the vehicle in a cool place. Check that the temperature of the radio receiver has become sufficiently low, then start the engine. Check that the malfunction disappears. OK Malfunction disappears. NG --> REPLACE RADIO RECEIVER OK --> END
  1. CLEAR DTC Clear the DTCs. Refer to «DTC CHECK / CLEAR»(ref-387171-S27895678712011022400000) . NEXT: Go to next step
  2. RECHECK DTC Recheck for DTCs and check if the same trouble occurs again. OK Malfunction disappears. NG --> REPLACE RADIO RECEIVER OK --> END
  1. CHANGE DISC Insert a disc with a playable file and check if the disc can be played correctly. HINT: For details on playable files and discs, refer to the Owner's Manual. OK The disc can be played correctly. NG --> REPLACE RADIO RECEIVER OK --> DISC IS FAULTY
  1. CHECK SPEAKER INSTALLATION Check that each speaker is securely installed. OK Each speaker is securely installed. NG --> INSTALL SPEAKER PROPERLY OK: Go to next step
  2. IDENTIFY NOISE SOURCE Check the noise condition. HINT: The radio has a noise prevention function to reduce noise when listening to the radio. If a loud noise occurs, check whether the ground at the antenna mounting base and the noise prevention unit are installed and wired correctly. Condition in Which Noise Occurs Noise Type Depressing accelerator pedal increases noise, and stopping engine stops noise immediately Generator noise When A/C or heater is operating Blower motor noise When rapidly accelerating on unpaved road When power switch is turned ON (IG) Fuel pump noise When horn switch is pressed and released When horn switch is pressed and held down Horn noise Running engine causes soft noise, and stopping engine stops noise immediately Ignition noise Noise occurs synchronously with turn signal flash Flasher noise Noise occurs during window washer operation Washer noise Running engine causes noise, but stopping engine does not stop noise Water temperature sensor noise When wiper is operating Wiper noise When brake pedal is depressed Stop light switch noise Other Static electricity on vehicle HINT: In the chart's left column, find the situation that matches the customer's vehicle. Then, in the right column, find the part that is causing the noise. Check the noise filter on the part. To save time and avoid a misdiagnosis, first make sure that the noise is not originating from outside the vehicle. Troubleshoot noise problems in order of loudness, starting with the loudest noise. Setting the radio to a frequency that receives no signal may make recognition of the noise problem easier. OK The noise source can be determined. NG --> REPLACE RADIO RECEIVER ASSEMBLY OK --> REPAIR OR REPLACE NOISE SOURCE

Scheme 256

Scheme 256: PROCEDURE
Scheme 256: PROCEDURE
  1. CHECK SOUND SETTINGS Enter the sound adjustment screen by pressing the "SOUND" switch on the AUDIO display. Set volume, fader, and balance to the initial values and check that sound is normal. OK Sound returns to normal. HINT: Sound quality adjustment items vary depending on the type of the amplifier. OK --> END NG --> PROCEED TO NEXT INSPECTION PROCEDURE SHOWN IN «PROBLEM SYMPTOMS TABLE»(ref-387171-S39945431822011022400000)
  1. REPLACE CD WITH ANOTHER AND RECHECK Replace the CD with a normal one and check if the same problem occurs again. OK Malfunction disappears. NG --> REPLACE RADIO RECEIVER OK --> CD IS FAULTY
  1. PRESS "EJECT" AND CHECK OPERATION Press the cassette tape EJECT switch of the radio receiver for 2 seconds or more and check that the cassette tape is ejected. OK Cassette tape is ejected. NG --> PROCEED TO NEXT INSPECTION PROCEDURE SHOWN IN «PROBLEM SYMPTOMS TABLE»(ref-387171-S39945431822011022400000) OK: Go to next step
  2. CHECK CASSETTE TAPE Check that the ejected cassette tape does not have a peeling label, cassette body deformation or other problems. OK No problems with cassette tape. NG --> CASSETTE TAPE IS FAULTY OK: Go to next step
  3. REPLACE CASSETTE TAPE WITH ANOTHER AND RECHECK Replace the cassette tape with a normal one and check if the same problem occurs again. OK Malfunction disappears. NG --> PROCEED TO NEXT INSPECTION PROCEDURE SHOWN IN «PROBLEM SYMPTOMS TABLE»(ref-387171-S39945431822011022400000) OK --> CASSETTE TAPE IS FAULTY
  1. CHECK FOR FOREIGN OBJECT Check that the radio receiver cassette tape player is free from foreign objects. OK No foreign objects. NG --> REMOVE FOREIGN OBJECT OK: Go to next step
  2. CHECK CASSETTE TAPE Check that the cassette tape is a normal tape for recording sounds. OK Cassette tape is normal. NG --> CASSETTE TAPE IS FAULTY OK: Go to next step
  3. REPLACE CASSETTE TAPE WITH ANOTHER AND RECHECK Replace the cassette tape with a normal one and check if the same problem occurs again. OK Same problem does not occur. NG --> PROCEED TO NEXT INSPECTION PROCEDURE SHOWN IN «PROBLEM SYMPTOMS TABLE»(ref-387171-S39945431822011022400000) OK --> CASSETTE TAPE IS FAULTY
  1. CHECK IF PROPER DISC IN INSERTED Make sure that the disc is a normal audio disc, and that it is not deformed, flawed, burred or otherwise defective. OK Normal audio disc. HINT: For details on playable disc, refer to the Owner's Manual. NG --> DISC IS FAULTY OK: Go to next step
  2. CHECK THAT DISC IS INSERTED PROPERLY Check whether or not the disc is inserted upside down. OK Disc is properly inserted. NG --> INSERT DISC PROPERLY OK: Go to next step
  3. CLEAN DISC Clean the disc by wiping the disc's underside radially with a soft cloth. OK Malfunction disappears. NOTE: Do not use a conventional record cleaner or antistatic preservative. OK --> DISC WAS DIRTY NG: Go to next step
  4. REPLACE DISC WITH ANOTHER AND RECHECK Replace the disc with a normal one and check if the same problem occurs again. OK Malfunction disappears. NG --> PROCEED TO NEXT INSPECTION PROCEDURE SHOWN IN «PROBLEM SYMPTOMS TABLE»(ref-387171-S39945431822011022400000) OK --> DISC IS FAULTY
  1. PRESS "EJECT" AND CHECK OPERATION Press the DISC EJECT switch of the radio and navigation assembly for 5 seconds or more, and check that the disc ejects. OK Disc ejects. NG --> PROCEED TO NEXT INSPECTION PROCEDURE SHOWN IN «PROBLEM SYMPTOMS TABLE»(ref-387171-S39945431822011022400000) OK: Go to next step
  2. REPLACE DISC WITH ANOTHER AND RECHECK Replace the disc with a normal one and check that the disc ejects. OK Disc ejects. NG --> PROCEED TO NEXT INSPECTION PROCEDURE SHOWN IN «PROBLEM SYMPTOMS TABLE»(ref-387171-S39945431822011022400000) OK --> DISC IS FAULTY
  1. CLEAN DISC Clean the disc by wiping the disc's underside radially with a soft cloth. OK Malfunction disappears. NOTE: Do not use a conventional record cleaner or antistatic preservative. OK --> DISC WAS DIRTY NG: Go to next step
  2. REPLACE DISC WITH ANOTHER AND RECHECK Replace the disc with a normal one and check if the same problem occurs again. OK Malfunctions disappears. OK --> DISC IS FAULTY NG: Go to next step
  3. CHECK WHEN PROBLEM OCCURS Check the location in which disc skipping occurs. RESULT Result Proceed to Driving surface is bumpy or rough A Driving surface is normal B B --> See step 5 A: Go to next step
  4. CHECK RADIO AND NAVIGATION ASSEMBLY INSTALLATION Check the installation condition of the radio and navigation assembly. OK Installed properly. NG --> INSTALL RADIO AND NAVIGATION ASSEMBLY PROPERLY OK: Go to next step
  5. INSTALL RADIO AND NAVIGATION ASSEMBLY IN ANOTHER VEHICLE OF SAME MODEL AND COMPARE Remove the radio and navigation assembly and install it in another vehicle of the same model. Check if the disc sound skips. OK Disc sound does not skip. OK --> MALFUNCTIONS MAY NOT BE PRESENT NG: Go to next step
  6. DID TEMPERATURE IN CABIN CHANGE RAPIDLY? Check whether or not a rapid temperature change occurred in the cabin. OK Rapid temperature change occurred. HINT: A rapid temperature change creates condensation inside the disc player, which may disable disc playback. NG --> PROCEED TO NEXT INSPECTION PROCEDURE SHOWN IN «PROBLEM SYMPTOMS TABLE»(ref-387171-S39945431822011022400000) OK --> CONDENSATION DUE TO TEMPERATURE CHANGE (LEAVE AS IS FOR A WHILE BEFORE USING)

Scheme 257

Scheme 257: PROCEDURE
Scheme 257: PROCEDURE
  1. CHECK IF RADIO AUTO-SEARCH FUNCTIONS PROPERLY Perform the auto-search of the radio and check that it functions normally. OK Radio auto-search functions normally. OK --> REPLACE RADIO RECEIVER ASSEMBLY NG: Go to next step
  2. CHECK OPTIONAL COMPONENTS Check if the telephone antenna, and other optional components are installed. OK Optional component(s) installed. OK --> EFFECT FROM OPTIONAL COMPONENTS NG: Go to next step
  3. CHECK ANTENNA FOR NOISE PRODUCTION With the power switch ON (ACC), turn on the radio and choose the AM mode. Place the tip of a screwdriver on the antenna and check that noise is heard from the speakers. OK Noise is heard. OK --> REPLACE RADIO RECEIVER ASSEMBLY NG: Go to next step
  4. CHECK RADIO RECEIVER ASSEMBLY (ANTENNA) Remove the antenna plug of the radio receiver. With the radio receiver connector connected, turn the power switch ON (ACC). Turn on the radio and choose the AM mode. Place a flat-head screwdriver or a piece of metal, such as a thin wire, on the antenna jack of the radio receiver. Check that noise is heard from the speakers. OK Noise is heard. NG --> REPLACE ANTENNA ASSEMBLY AND ANTENNA CORD SUB-ASSEMBLY OK --> REPLACE RADIO RECEIVER ASSEMBLY

Scheme 258

Scheme 258: PROCEDURE
Scheme 258: PROCEDURE
  1. REPLACE CASSETTE TAPE WITH ANOTHER AND RECHECK Replace the cassette tape with a normal one and check if the same problem occurs again. OK Malfunction disappears. OK --> CASSETTE TAPE IS FAULTY NG: Go to next step
  2. CHECK FOR FOREIGN OBJECT Check that the radio receiver cassette tape player is free from foreign objects. OK No foreign objects. NG --> REMOVE FOREIGN OBJECT OK: Go to next step
  3. CLEAN HEAD AND CHECK OPERATION Raise the cassette door with your finger. Using a pencil or similar object, push in the guide. Using a cleaning pen or cotton applicator soaked in cleaner, clean the head surface, pinch rollers and capstans. Check that the malfunction disappears. OK Malfunction disappears. NG --> REPLACE RADIO RECEIVER ASSEMBLY OK --> HEAD WAS DIRTY
  1. CHECK FOR FOREIGN OBJECT Check that the radio receiver cassette tape player is free from foreign objects. OK No foreign objects. NG --> REMOVE FOREIGN OBJECT OK: Go to next step
  2. REPLACE CASSETTE TAPE WITH ANOTHER (90 MIN. OR LESS) AND RECHECK Replace the cassette tape with a normal one (90 minutes or less). Check that the malfunction disappears. OK Malfunction disappears. OK --> CASSETTE TAPE IS FAULTY NG: Go to next step
  3. CLEAN HEAD AND CHECK OPERATION Raise the cassette door with your finger. Using a pencil or similar object, push in the guide. Using a cleaning pen or cotton applicator soaked in cleaner, clean the head surface, pinch rollers and capstans. Check that the malfunction disappears. OK Malfunction disappears. NG --> REPLACE RADIO RECEIVER ASSEMBLY OK --> HEAD WAS DIRTY
  1. CHECK DISPLAY SETTING Check that the display is not in "Screen OFF" mode. OK The display setting is not in "screen OFF" mode. NG --> CHANGE SCREEN TO "SCREEN ON" MODE OK: Go to next step
  2. CHECK IMAGE QUALITY SETTING Check that the screen color quality can be set. OK Setting is possible. OK --> PRESS PANEL SWITCH "DISPLAY" AND SET SCREEN COLOR QUALITY TO NORMAL NG: Go to next step
  3. CHECK CABIN Check that condensation is not likely to occur in the cabin, and that the temperature is not high or extremely low in the cabin. HINT: A humid cabin and a rapid change in temperature may lead to condensation. Condensation in the cabin may short circuit the screen. The appropriate cabin temperature is 20 to 30°C (68 to 86°F). OK Condensation is not likely and temperature is not high or extremely low. NG --> SET CABIN TO APPROPRIATE TEMPERATURE OK --> PROCEED TO NEXT INSPECTION PROCEDURE SHOWN IN «PROBLEM SYMPTOMS TABLE»(ref-387171-S39945431822011022400000)

Scheme 259

Scheme 259: PROCEDURE
Scheme 259: PROCEDURE
  1. INSPECT NIGHTTIME ILLUMINATION Turn on the light control switch and check the nighttime illumination of the vehicle interior. RESULT Result Proceed to Only multi-display nighttime illumination does not activate A No nighttime illumination at all B B --> See step 3 A: Go to next step
  2. CHECK VEHICLE SIGNAL (DISPLAY CHECK MODE) Enter the "Display Check" mode (Vehicle Signal Check Mode). Refer to «DISPLAY CHECK MODE»(ref-387171-S17092286202011022400000) . Check that the display changes between ON and OFF according to the light control switch operation. OK Light Control Switch Display TAIL or ON ON OFF OFF HINT: This display is updated once per second. As a result, it is normal for the display to lag behind the actual change in the switch. OK --> REPLACE MULTI-DISPLAY NG --> PROCEED TO NEXT INSPECTION PROCEDURE SHOWN IN «PROBLEM SYMPTOMS TABLE»(ref-387171-S39945431822011022400000)
  3. GO TO LIGHTING SYSTEM. Refer to «HOW TO PROCEED WITH TROUBLESHOOTING»(ref-387135-S34068926952011022400000)

Scheme 260

Scheme 260: PROCEDURE
Scheme 260: PROCEDURE

Scheme 261

Scheme 261
Scheme 261
  1. CHECK IMAGE QUALITY SETTING Enter the display adjustment screen by pressing the "DISPLAY" switch. Turn the light control switch to the TAIL position. Check if "Day Mode" on the display is ON. OK "Day Mode" is ON. OK --> TURN "DAY MODE" SETTING OFF NG: Go to next step
  2. CHECK VEHICLE SIGNAL (DISPLAY VEHICLE SIGNAL) Enter the "Display Check" mode (Vehicle Signal Check). Refer to «DISPLAY CHECK MODE»(ref-387171-S17092286202011022400000) . Cover the automatic light control sensor on the instrument panel with a cloth. Set the instrument panel light control to less than maximum (to activate the dimmer function that works when the light control switch is in the TAIL position). Check that the display changes between DIM and BRIGHT according to the light control switch operation. OK Light Control Switch Condition Display Condition TAIL or HEAD DIM OFF BRIGHT HINT: The display is updated once per second. It is normal for the display to lag behind the actual switch operation. OK --> REPLACE MULTI-DISPLAY NG --> PROCEED TO NEXT INSPECTION PROCEDURE SHOWN IN «PROBLEM SYMPTOMS TABLE»(ref-387171-S39945431822011022400000)

Scheme 262

Scheme 262: PROCEDURE
Scheme 262: PROCEDURE
  1. CHECK PANEL SWITCH Check for foreign matter around the switch that might prevent operation. OK No foreign matter is found. NG --> REMOVE ANY FOREIGN MATTER FOUND OK: Go to next step
  2. CHECK PANEL SWITCH (DISPLAY CHECK MODE) Enter the "Display Check" mode (Panel Switch Check Mode). Refer to «DISPLAY CHECK MODE»(ref-387171-S17092286202011022400000) . Operate the abnormal switch and check if the switch name and status are correctly displayed. OK The switch name and status are correctly displayed as operated. OK --> REPLACE MULTI-DISPLAY NG --> PROCEED TO NEXT INSPECTION PROCEDURE SHOWN IN «PROBLEM SYMPTOMS TABLE»(ref-387171-S39945431822011022400000)

Scheme 263

Scheme 263: PROCEDURE
Scheme 263: PROCEDURE
  1. CHECK TOUCH PANEL Check for foreign matter on the display. OK The display is clean. NG --> CLEAN DISPLAY AND RECHECK TOUCH PANEL OK: Go to next step
  2. CHECK TOUCH SWITCH (DISPLAY CHECK MODE) Enter the "Display Check" mode (Touch Switch Check). Refer to «DISPLAY CHECK MODE»(ref-387171-S17092286202011022400000) . Touch the display in the area where the switch malfunction occurs. OK A "+" mark appears at the touched position. NG --> REPLACE MULTI-DISPLAY OK --> PROCEED TO NEXT INSPECTION PROCEDURE SHOWN IN «PROBLEM SYMPTOMS TABLE»(ref-387171-S39945431822011022400000)
  1. ADJUST SOUND QUALITY Operate the radio receiver to adjust the sound quality. OK Sound quality returns to normal. OK --> SYSTEM IS OK (BAD SOUND QUALITY) NG: Go to next step
  2. COMPARE VEHICLE WITH ANOTHER VEHICLE OF SAME MODEL Compare the vehicle with another vehicle that has a normally functioning audio system. Check if there is any difference in the problem. OK No difference is found. OK --> SYSTEM IS OK (BAD SOUND QUALITY) NG --> PROCEED TO NEXT INSPECTION PROCEDURE SHOWN IN «PROBLEM SYMPTOMS TABLE»(ref-387171-S39945431822011022400000)
  1. CHECK CURRENT CONDITION Check for Bluetooth capable cellular phones and vehicles in the area. RESULT: Conditions Proceed to Another Bluetooth compatible cellular phone is present A Another Bluetooth compatible vehicle is present B None of the above C C --> See step 4 B --> See step 3 A: Go to next step
  2. CHECK USING ANOTHER CELLULAR PHONE Check if the system functions using another Bluetooth compatible cellular phone. HINT: Confirm that either the same or a different version of another Bluetooth compatible cellular phone complies with the system. Depending on the version, some Bluetooth compatible cellular phones cannot be used. OK System functions. NG --> REPLACE MULTI-DISPLAY OK --> USE BLUETOOTH COMPATIBLE CELLULAR PHONE (DEPENDING ON THE VERSION)
  3. CHECK USING ANOTHER BLUETOOTH CAPABLE VEHICLE Register the cellular phone with another vehicle and check if the system functions normally. HINT: Depending on the version, some Bluetooth compatible cellular phones cannot be used. OK System functions. OK --> REPLACE MULTI-DISPLAY NG --> USE BLUETOOTH COMPATIBLE CELLULAR PHONE
  4. CHECK CELLULAR PHONE Check if the cellular phone is Bluetooth compatible. HINT: Some versions of Bluetooth compatible cellular phones may not function. OK The phone is Bluetooth compatible. NG --> USE BLUETOOTH COMPATIBLE CELLULAR PHONE OK: Go to next step
  5. CHECK CELLULAR PHONE Check if a call can be made from the cellular phone. HINT: When the battery is low, registration or directory transfer cannot be done. OK A call can be made from the cellular phone. NG --> REPLACE CELLULAR PHONE OK --> REPLACE MULTI-DISPLAY
  1. CHECK BLUETOOTH SETTING Check if the Bluetooth settings are correct. OK Bluetooth settings are correct. NG --> SET SETTINGS CORRECTLY OK: Go to next step
  2. CHECK CELLULAR PHONE Check if the cellular phone is Bluetooth compatible. HINT: Some versions of Bluetooth compatible cellular phones may not function. OK Phone is Bluetooth compatible. NG --> END (ONLY A BLUETOOTH COMPATIBLE CELLULAR PHONE CAN BE USED) OK: Go to next step
  3. CHECK SETTING Check if the cellular phone functions. HINT: The cellular phone is unable to call under any of the following conditions. The cellular phone is locked. The directory is being transferred. The line is crossed. Transmission is regulated. The power is OFF. The cellular phone is not connected to Bluetooth ("Bluetooth mark" is displayed while connected). OK Above conditions do not exist. NG --> SET CORRECTLY OK: Go to next step
  4. CHECK CELLULAR PHONE Check if the cellular phone can make calls. HINT: When the battery is low, calls cannot be made or received. OK Cellular phone can make calls. NG --> REPLACE CELLULAR PHONE OK: Go to next step
  5. CHECK RECEPTION Set the cellular phone so that it can receive calls. Place the cellular phone close to the multi-display. Check if the cellular phone has reception according to the multi-display. OK Cellular phone has reception. NG --> REPLACE MULTI-DISPLAY OK --> PROCEED TO NEXT INSPECTION PROCEDURE SHOWN IN «PROBLEM SYMPTOMS TABLE»(ref-387171-S39945431822011022400000)

Scheme 264

Scheme 264: PROCEDURE
Scheme 264: PROCEDURE

Scheme 265

Scheme 265
Scheme 265
  1. CHECK SURROUNDING CONDITION Check if the cellular phone can make calls in a certain location. OK It can make calls. NG --> END (CELLULAR PHONES CAN ONLY FUNCTION IN CELLULAR SERVICE AREAS) OK: Go to next step
  2. CHECK RECEPTION Enter the "Information" screen by pressing the "INFO" switch. Select "Telephone". Check the "BT" mark. RESULT Condition Proceed to Yellow color A Blue color B No connection mark is displayed C C --> SELECT REGISTERED CELLULAR PHONE OR REGISTER BLUETOOTH COMPATIBLE PHONE B --> REPLACE MULTI-DISPLAY A --> BRING CELLULAR PHONE TO LOCATION WHERE BT MARK TURNS BLUE

Scheme 266

Scheme 266: PROCEDURE
Scheme 266: PROCEDURE

Scheme 267

Scheme 267
Scheme 267
  1. CHECK CELLULAR PHONE Check if the voice on the other side can be heard using a cellular phone. OK Voice can be heard. NG --> REPAIR OR REPLACE CELLULAR PHONE OK: Go to next step
  2. CHECK NAVIGATION SYSTEM Check that voice guidance can be heard from the driver side speaker. OK Voice guidance can be heard. NG --> GO TO "VOICE GUIDANCE DOES NOT FUNCTION" IN «PROBLEM SYMPTOMS TABLE»(ref-387171-S39945431822011022400000) OK: Go to next step
  3. CHECK SETTINGS Check if the volume level is set to a low level on the CALL screen. OK The level is not low. NG --> SET VOLUME TO HIGH OK: Go to next step
  4. CHECK SETTINGS Enter the "Handsfree Voice Quality Set" mode. Refer to «BLUETOOTH TEL CHECK MODE»(ref-387171-S05287233132011022400000) . Check if the Receive Voice Level is set to "0". HINT: The Receive Voice Level can be set to 11 different levels, -5 to +5, with a 3 dB difference. Check if the Receive Voice Level is set to the minimum or maximum level. HINT: When the Receive Voice Level is set to the minimum or maximum level, the sound may be distorted. OK The Receive Voice Level is set to "0". NG --> SET RECEIVE VOICE LEVEL TO "0" OK --> PROCEED TO NEXT INSPECTION PROCEDURE SHOWN IN «PROBLEM SYMPTOMS TABLE»(ref-387171-S39945431822011022400000)

Scheme 268

Scheme 268: PROCEDURE
Scheme 268: PROCEDURE

Scheme 269

Scheme 269
Scheme 269
  1. CHECK CELLULAR PHONE Check if the other side can hear your voice properly. OK Your voice can be heard correctly. NG --> REPLACE CELLULAR PHONE OK: Go to next step
  2. CHECK SETTINGS Check if the mute switch is set to ON. OK Mute switch is not set to ON. NG --> TURN MUTE SWITCH OFF OK: Go to next step
  3. CHECK SETTINGS Enter the "Handsfree Voice Quality Set" mode. Refer to «BLUETOOTH TEL CHECK MODE»(ref-387171-S05287233132011022400000) . Check if the Send Voice Level is set to "0". HINT: The Send Voice Level can be set to 11 different levels, -5 to +5, with a 3 dB difference. Check if the Send Voice Level is set to the minimum or maximum level. HINT: When the Send Voice Level is set to the minimum or maximum level, the sound may be distorted. OK The Send Voice Level is set to "0". NG --> SET SEND VOICE LEVEL TO "0" OK --> PROCEED TO NEXT INSPECTION PROCEDURE SHOWN IN «PROBLEM SYMPTOMS TABLE»(ref-387171-S39945431822011022400000)
  1. INSPECT RADIO RECEIVER ASSEMBLY Disconnect the K53, K54 and K56 receiver connectors. Measure the resistance of the receiver. Standard resistance Tester Connection Specified Condition K53-9 (TXM+) - K53-10 (TXM-) 60 to 80 ohms K54-5 (ATX+) - K54-15 (ATX-) 60 to 80 ohms K56-9 (TX+) - K56-10 (TX-) 60 to 80 ohms NG --> REPLACE RADIO RECEIVER ASSEMBLY OK: Go to next step
  2. CHECK WIRE HARNESS HINT: For details of the connectors, refer to "TERMINALS OF ECU". Refer to «TERMINALS OF ECU»(ref-387171-S34649818612011022400000) . Referring to the AVC-LAN wiring diagram below, check all AVC-LAN circuits. Disconnect all connectors in all AVC-LAN circuits. Check for an open or short in all AVC-LAN circuits. OK There is no open or short circuit. NG --> REPAIR OR REPLACE HARNESS OR CONNECTOR OK --> PROCEED TO NEXT INSPECTION PROCEDURE SHOWN IN «PROBLEM SYMPTOMS TABLE»(ref-387171-S39945431822011022400000)
  1. IDENTIFY COMPONENT SHOWN BY SUB-CODE Enter the diagnostic mode. Press the "LAN Mon" switch to change to "LAN Monitor" mode. Identify the component shown by the sub-code. HINT: "110 (multi-display)" is the component shown by the sub-code in the example shown in the illustration. The sub-code will be indicated by its physical address. For the component list, refer to "DIAGNOSIS DISPLAY DETAILED DESCRIPTION". Refer to «DIAGNOSIS DISPLAY DETAILED DESCRIPTION»(ref-387171-S02976621102011022400000) . NEXT: Go to next step
  2. CHECK POWER SOURCE CIRCUIT OF COMPONENT SHOWN BY SUB-CODE Inspect the power source circuit of the component shown by the sub-code. If the power source circuit is operating normally, proceed to the next step. COMPONENT TABLE: Component Proceed to Radio receiver (190) Radio receiver power source circuit. Refer to «Radio Receiver Power Source Circuit»(ref-387172-S33767789882011022400000) Stereo component amplifier (440) Stereo component amplifier power source circuit. Refer to «Stereo Component Amplifier Power Source Circuit»(ref-387172-S30019823112011022400000) Multi-display (110) Multi-display power source circuit. Refer to «Multi-display Communication Error»(ref-387173-S15352132962011022400000) NEXT: Go to next step
  3. INSPECT RADIO RECEIVER ASSEMBLY Disconnect the K53, K54 and K56 receiver connectors. Measure the resistance of the receiver. Standard resistance Tester Connection Specified Condition K53-9 (TXM+) - K53-10 (TXM-) 60 to 80 ohms K54-5 (ATX+) - K54-15 (ATX-) 60 to 80 ohms K56-9 (TX+) - K56-10 (TX-) 60 to 80 ohms NG --> REPLACE RADIO RECEIVER ASSEMBLY OK: Go to next step
  4. CHECK WIRE HARNESS (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". Refer to «TERMINALS OF ECU»(ref-387171-S34649818612011022400000) . 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
  5. REPLACE COMPONENT SHOWN BY SUB-CODE Replace the component shown by the sub-code with a normal one and check if the same problem occurs again. OK Same problem does not occur. NG --> REPLACE GATEWAY ECU OK --> END
  1. IDENTIFY COMPONENT SHOWN BY SUB-CODE Enter the diagnostic mode. Press the "LAN Mon" switch to change to "LAN Monitor" mode. Identify the component shown by the sub-code. HINT: "110 (multi-display)" is the component shown by the sub-code in the example shown in the illustration. The sub-code will be indicated by its physical address. For the component list, refer to "DIAGNOSIS DISPLAY DETAILED DESCRIPTION". Refer to «DIAGNOSIS DISPLAY DETAILED DESCRIPTION»(ref-387171-S02976621102011022400000) . NEXT: Go to next step
  2. CHECK POWER SOURCE CIRCUIT OF COMPONENT SHOWN BY SUB-CODE Inspect the power source circuit of the component shown by the sub-code. If the power source circuit is operating normally, proceed to the next step. COMPONENT TABLE: Component Proceed to Gateway ECU (1C6) Gateway ECU power source circuit. Refer to «Radio Receiver Power Source Circuit»(ref-387172-S33767789882011022400000) Stereo component amplifier (440) Stereo component amplifier power source circuit. Refer to «Stereo Component Amplifier Power Source Circuit»(ref-387172-S30019823112011022400000) Multi-display (110) Multi-display power source circuit. Refer to «Multi-display Power Source Circuit»(ref-387173-S38893476092011022400000) NEXT: Go to next step
  3. INSPECT RADIO RECEIVER ASSEMBLY Disconnect the K53, K54 and K56 receiver connectors. Measure the resistance of the receiver. Standard resistance Tester Connection Specified Condition K53-9 (TXM+) - K53-10 (TXM-) 60 to 80 ohms K54-5 (ATX+) - K54-15 (ATX-) 60 to 80 ohms K56-9 (TX+) - K56-10 (TX-) 60 to 80 ohms NG --> REPLACE RADIO RECEIVER ASSEMBLY OK: Go to next step
  4. CHECK WIRE HARNESS (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 "TERMINALS OF ECU". Refer to «TERMINALS OF ECU»(ref-387171-S34649818612011022400000) . Referring to the AVC-LAN wiring diagram below, check the AVC-LAN circuit between the radio receiver and the component shown by the sub-code. Disconnect all connectors between the radio receiver and the component shown by sub-code. Check for an open or short in the AVC-LAN circuit between the radio receiver and the component shown by the sub-code. OK There is no open or short circuit. NG --> REPAIR OR REPLACE HARNESS OR CONNECTOR OK: Go to next step
  5. REPLACE COMPONENT SHOWN BY SUB-CODE WITH NORMAL ONE AND CHECK 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
  1. IDENTIFY COMPONENT SHOWN BY SUB-CODE Enter the diagnostic mode. Press the "LAN Mon" switch to change to "LAN Monitor" mode. Identify the component shown by the sub-code. HINT: "110 (multi-display)" is the component shown by the sub-code in the example shown in the illustration. The sub-code will be indicated by its physical address. For the component list, refer to "DIAGNOSIS DISPLAY DETAILED DESCRIPTION". Refer to «DIAGNOSIS DISPLAY DETAILED DESCRIPTION»(ref-387171-S02976621102011022400000) . NEXT: Go to next step
  2. CHECK POWER SOURCE CIRCUIT OF COMPONENT SHOWN BY SUB-CODE Inspect the power source circuit of the component shown by the sub-code. If the power source circuit is operating normally, proceed to the next step. COMPONENT TABLE: Component Proceed to Radio receiver (190) Radio receiver power source circuit. Refer to «Radio Receiver Power Source Circuit»(ref-387172-S33767789882011022400000) Gateway ECU (1C6) Gateway ECU power source circuit. Refer to «Stereo Component Amplifier Power Source Circuit»(ref-387172-S30019823112011022400000) Multi-display (110) Multi-display power source circuit. Refer to «Multi-display Power Source Circuit»(ref-387173-S38893476092011022400000) NEXT: Go to next step
  3. INSPECT RADIO RECEIVER ASSEMBLY Disconnect the K53, K54 and K56 receiver connectors. Measure the resistance of the receiver. Standard resistance Tester Connection Specified Condition K53-9 (TXM+) - K53-10 (TXM-) 60 to 80 ohms K54-5 (ATX+) - K54-15 (ATX-) 60 to 80 ohms K56-9 (TX+) - K56-10 (TX-) 60 to 80 ohms NG --> REPLACE RADIO RECEIVER ASSEMBLY OK: Go to next step
  4. CHECK WIRE HARNESS (STEREO COMPONENT AMPLIFIER - COMPONENT SHOWN BY SUB-CODE) HINT: Start the check from the circuit that is near the component shown by the sub-code first. For details of the connectors, refer to "TERMINALS OF ECU". Refer to «TERMINALS OF ECU»(ref-387171-S34649818612011022400000) . Referring to the AVC-LAN wiring diagram below, check the AVC-LAN circuit between the stereo component amplifier and the component shown by the sub-code. Disconnect all connectors between the stereo component amplifier and the component shown by sub-code. Check for an open or short in the AVC-LAN circuit between the stereo component amplifier and the component shown by the sub-code. OK There is no open or short circuit. NG --> REPAIR OR REPLACE HARNESS OR CONNECTOR OK: Go to next step
  5. REPLACE COMPONENT SHOWN BY SUB-CODE WITH NORMAL ONE AND CHECK Replace the component shown by the sub-code with a normal one and check if the same problem occurs again. OK Same problem does not occur. NG --> REPLACE STEREO COMPONENT AMPLIFIER OK --> END
  1. IDENTIFY COMPONENT SHOWN BY SUB-CODE Enter the diagnostic mode. Press the "LAN Mon" switch to change to "LAN Monitor" mode. Identify the component shown by the sub-code. HINT: "110 (multi-display)" is the component shown by the sub-code in the example shown in the illustration. The sub-code will be indicated by its physical address. For the component list, refer to "DIAGNOSIS DISPLAY DETAILED DESCRIPTION". Refer to «DIAGNOSIS DISPLAY DETAILED DESCRIPTION»(ref-387171-S02976621102011022400000) . NEXT: Go to next step
  2. CHECK POWER SOURCE CIRCUIT OF COMPONENT SHOWN BY SUB-CODE Inspect the power source circuit of the component shown by the sub-code. If the power source circuit is operating normally, proceed to the next step. COMPONENT TABLE: Component Proceed to Radio receiver (190) Radio receiver power source circuit. Refer to «Radio Receiver Power Source Circuit»(ref-387172-S33767789882011022400000) Stereo component amplifier (440) Stereo component amplifier power source circuit. Refer to «Stereo Component Amplifier Power Source Circuit»(ref-387172-S30019823112011022400000) Gateway ECU (1C6) Gateway ECU power source circuit. Refer to «Gateway ECU Power Source Circuit»(ref-387172-S36310091602011022400000) NEXT: Go to next step
  3. INSPECT RADIO RECEIVER ASSEMBLY Disconnect the K53, K54 and K56 receiver connectors. Measure the resistance of the receiver. Standard resistance Tester Connection Specified Condition K53-9 (TXM+) - K53-10 (TXM-) 60 to 80 ohms K54-5 (ATX+) - K54-15 (ATX-) 60 to 80 ohms K56-9 (TX+) - K56-10 (TX-) 60 to 80 ohms NG --> REPLACE RADIO RECEIVER ASSEMBLY OK: Go to next step
  4. CHECK WIRE HARNESS (MULTI-DISPLAY - 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". Refer to «TERMINALS OF ECU»(ref-387171-S34649818612011022400000) . Referring to the AVC-LAN wiring diagram below, check the AVC-LAN circuit between the multi-display and the component shown by the sub-code. Disconnect all connectors between the multi-display and the component shown by sub-code. Check for an open or short in the AVC-LAN circuit between the multi-display and the component shown by the sub-code. OK There is no open or short circuit. NG --> REPAIR OR REPLACE HARNESS OR CONNECTOR OK: Go to next step
  5. REPLACE COMPONENT SHOWN BY SUB-CODE WITH NORMAL ONE AND CHECK 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 MULTI-DISPLAY OK --> END

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