FOREWORD [AUDIO]
Note. Record all radio programs set by the customer prior to the repairs. Set all radio programs and adjust the time after the repairs.
CONFIRMATION STEP 1: AUDIO PANEL SWITCH CONFIRMATION [AUDIO]
- Make sure the customer complain and identify either the center panel malfunction or audio unit malfunction.
How To Activate Audio Center Switch Confirmation Mode
- Turn the audio unit power to ON.
- While pressing the POWER/VOLUME switch, simultaneously press the MEDIA switch for approx. 1s .
- The center panel switch confirmation mode is now activated.
| STEP | INSPECTION | ACTION |
|---|
| 1 | Press each switch on the center panel. Does buzzer sound when pressing each switch? | Yes | Make sure the customer complain and then go to the appropriate symptom troubleshooting procedure. |
| No | Go to the next step. |
| 2 | Disassemble and reassemble the center panel and audio unit. Activate the center panel switch confirmation mode. Does the buzzer sound when pressing each switch? | Yes | Go to the next step. |
| No | Replace the center panel. (See CENTER PANEL UNIT REMOVAL/INSTALLATION .) (See CENTER PANEL UNIT DISASSEMBLY/ASSEMBLY .) |
| 3 | Does the audio system operate properly? | Yes | The system is normal. |
| No | Make sure the customer complain and then go to the appropriate symptom troubleshooting procedure. |
AUDIO PANEL SWITCH CONFIRMATION - DIAGNOSTIC PROCEDURE
CONFIRMATION STEP 2: AUDIO CONTROL SWITCH CONFIRMATION [AUDIO]
- Make sure the customer complain and identify either the audio control switch malfunction or audio unit malfunction.
| STEP | INSPECTION | ACTION |
|---|
| 1 | Is the symptom related to either the audio control switch or the audio panel operation? | Yes | Make sure the customer complain and then go to the appropriate symptom troubleshooting procedure. |
| No | The symptom is related to the audio panel operation: Follow the "Confirmation Step 1". The symptom is related to the audio control switch operation: Go to the next step. |
| 2 | Disconnect the audio unit connector (24-pin.) Inspect both the audio unit and wiring harness-side connectors for poor connection, (such as damaged/pulled-out pins, corrosion.) Terminal 1N (audio control switch 1) Terminal 1P (audio control switch 2) Are all the pins normal? | Yes | Go to the next step. |
| No | If the audio unit side connector is wrong: Replace the audio unit. (See CENTER PANEL UNIT REMOVAL/INSTALLATION .) (See CENTER PANEL UNIT DISASSEMBLY/ASSEMBLY .) If the wiring harness-side connector is wrong: Repair or replace the pins and/or the connector. |
| 3 | Inspect the continuity between the audio unit wiring harness-side connector terminal 1N and 1P while operating the audio control switch. Does the resistance change? | Yes | Make sure the customer complain and then go to the appropriate symptom troubleshooting procedure. |
| No | Go to the next step. |
| 4 | Turn the ignition switch to the LOCK position. Remove the audio control switch. Inspect the continuity between the audio unit wiring harness-side connector (24-pin) terminal and the audio control switch wiring harness-side connector (8-pin) terminal. Terminal 1N (24-pin) - Terminal G (8-pin) Terminal 1P (24-pin) - Terminal H (8-pin) Is there continuity? | Yes | Replace the audio control switch. (See AUDIO CONTROL SWITCH REMOVAL/INSTALLATION .) |
| No | Repair or replace the wiring harness. |
AUDIO CONTROL SWITCH CONFIRMATION - DIAGNOSTIC PROCEDURE
NO. 2 NO POWER ON THE ENTIRE AUDIO SYSTEM [AUDIO]
| 2 | No power on the entire audio system/Possible DTC: 09: Er20 |
|---|
| Troubleshooting hints Burnt fuse (B+) Burnt fuse (ACC) Open or short circuit in power supply (B+) wiring harness Open or short circuit in power supply (ACC) wiring harness Poor connection of audio unit connector, terminal damage Audio unit malfunction |
NO POWER ON THE ENTIRE AUDIO SYSTEM - POSSIBLE CAUSE
| STEP | INSPECTION | ACTION |
|---|
| 1 | Turn the ignition switch to the LOCK position. Inspect the following fuses: ROOM 15 A ACC 7.5 A Are the fuses normal? | Yes | Go to the next step. |
| No | Replace with the appropriate standard fuse. If the fuse is melted, inspect the wiring harness for short to ground. Repair or replace the wiring harness, then replace the fuse. |
| 2 | Remove the audio unit. Inspect the connection of the audio unit connector (24-pin.) Disconnect the audio unit connector and inspect both the audio unit and wiring harness-side connectors for poor connection, (such as damaged/pulled-out pins, corrosion.) Terminal 1B (B+) Terminal 1R (ACC) Terminal 1W (GND) Are all the pins normal? | Yes | Go to the next step. |
| No | If poor connection of audio unit connector: Securely connect the audio unit connector. If the audio unit side connector is wrong: Replace the audio unit. (See CENTER PANEL UNIT REMOVAL/INSTALLATION .) (See CENTER PANEL UNIT DISASSEMBLY/ASSEMBLY .) If the wiring harness-side connector is wrong: Repair or replace the pins and/or the connector. |
| 3 | Connect the audio unit connector. Inspect the voltage for the power supply line (B+, ACC.) Specification: Ignition switch ON: 11.5 V or more Idle: 12.5 V or more Is the voltage normal? | Yes | Go to the next step. |
| No | Repair or replace the suspect wiring harnesses. |
| 4 | Turn the ignition switch to the LOCK position. Remove the audio unit connector (24-pin.) Inspect the continuity between the audio unit wiring harness-side connector terminal 1W and the ground. Is there continuity? | Yes | Replace the audio unit. (See CENTER PANEL UNIT REMOVAL/INSTALLATION .) (See CENTER PANEL UNIT DISASSEMBLY/ASSEMBLY .) |
| No | Repair or replace the wiring harness. |
NO POWER ON THE ENTIRE AUDIO SYSTEM - DIAGNOSTIC PROCEDURE
NO. 3 NO SOUND FROM ALL SPEAKERS [AUDIO]
| 3 | No sound from all speakers/Possible DTC: 03: Er07, 03: Er10, 06: Er07, 06:EM0, 09: Er20, 09: Er21, 22: Er07, 22: Er10 |
|---|
| Troubleshooting hints Short circuit in wiring harness between audio unit and speaker Short circuit inside speaker Speaker malfunction (e.g., any foreign material, broken) Audio unit malfunction |
NO SOUND FROM ALL SPEAKERS - POSSIBLE CAUSE
| STEP | INSPECTION | ACTION |
|---|
| 1 | Press AUDIO CONT switch more than 2 seconds. Play the CD or Radio. Adjust the volume between "10" and "15". Is there any sound? | Yes | The system is normal. |
| No | Go to the next step. |
| 2 | Turn the ignition switch to the LOCK position. Remove the audio unit. Disconnect the audio connector (24-pin.) Inspect the continuity between the audio unit wiring harness-side connector terminal and ground: For front speaker Terminal 1A (LH+) - GND Terminal 1C (LH-) - GND Terminal 1D (RH+) - GND Terminal 1F (RH-) - GND For rear speaker Terminal 1S (LH+) - GND Terminal 1U (LH-) - GND Terminal 1V (RH+) - GND Terminal 1X (RH) - GND Is there continuity? | Yes | Repair or replace the suspect wiring harnesses or speaker unit. NOTE: If there is a short circuit between the speaker harness or speaker lead wire and ground, the protector circuit inside the audio unit operates to cut the sound. |
| No | Go to the next step. |
| 3 | Remove the speaker. Disconnect the speaker connector (2-pin.) Inspect the continuity between the speaker wiring harness-side connector (2-pin) terminal and ground: For each speaker Terminal A - GND Terminal B - GND Is there the continuity? | Yes | Replace the speaker. (See FRONT DOOR SPEAKER REMOVAL/INSTALLATION .) (See REAR SPEAKER REMOVAL/INSTALLATION .) |
| No | Replace the audio unit. (See CENTER PANEL UNIT REMOVAL/INSTALLATION .) (See CENTER PANEL UNIT DISASSEMBLY/ASSEMBLY .) |
| NOTE |
|---|
| If there is a short circuit between the speaker harness or speaker lead wire and ground, the protector circuit inside the audio unit operates to cut the sound. |
NO SOUND FROM ALL SPEAKERS - DIAGNOSTIC PROCEDURE
| 3 | No sound from all speakers/Possible DTC: 06: Er07, 06: Er10, 09: Er20, 09: Er21, 10: Er07, 10: Er10, 22: Er07, 22: Er10 |
|---|
| Troubleshooting hints Open or short circuit in wiring harness between audio amplifier and speaker Short circuit inside speaker Speaker malfunction (e.g., any foreign material, broken) Audio amplifier malfunction |
NO SOUND FROM ALL SPEAKERS - POSSIBLE CAUSE
| STEP | INSPECTION | ACTION |
|---|
| 1 | Press AUDIO CONT switch more than 2 seconds. Play the CD or radio. Adjust the volume between "10" and "15". Is there the sound? | Yes | The system is normal. |
| No | Go to the next step. |
| 2 | Measure the voltage at the audio amplifier terminal A. (vehicle harness-side) Is the voltage B+? | Yes | Go to Step 4. |
| No | Repair or replace wiring harness between the audio amplifier and fuse. Go to the next step. |
| 3 | Is there any sound? | Yes | The system is normal. |
| No | Go to the next step. |
| 4 | Turn the ignition switch to LOCK position. Disconnect the audio amplifier connector (8-pin, 16-pin.) Inspect continuity between the following terminals of the audio amplifier connector and speaker connector. For front speaker (LH) Terminal 2B (16-pin) - Terminal A Terminal 2D (16-pin) - Terminal B For front tweeter (LH) Terminal 2K (16-pin) - Terminal A Terminal 21 (16-pin) - Terminal B For front speaker (RH) Terminal 20 (16-pin) - Terminal A Terminal 2M (16-pin) - Terminal B For front tweeter (RH) Terminal 2G (16-pin) - Terminal A Terminal 2E (16-pin) - Terminal B For rear speaker/tweeter (LH) Terminal 1C (8-pin) - Terminal A (speaker)/terminal A (tweeter) Terminal 1D (8-pin) - Terminal B (speaker)/terminal B (tweeter) For rear speaker/tweeter (RH) Terminal 1E (8-pin) - Terminal A (speaker)/terminal A (tweeter) Terminal 1F (8-pin) - Terminal B (speaker)/terminal B (tweeter) For center speaker Terminal 1G (8-pin) - Terminal A Terminal 1H (8-pin) - Terminal B Is there continuity? | Yes | Go to the next step. |
| No | Repair or replace the related wiring harnesses. |
| 5 | Turn the ignition switch to LOCK position Disconnect the audio amplifier connector (8-pin, 16-pin.) Inspect the continuity between the audio amplifier connector and ground: For front speaker Terminal 2D (16-pin, LH OUT+) - GND Terminal 2B (16-pin, LH OUT-) - GND Terminal 2M (16-pin, RH OUT+) - GND Terminal 20 (16-pin, RH OUT-) - GND For front tweeter Terminal 21 (16-pin, LH OUT+) - GND Terminal 2K (16-pin, LH OUT-) - GND Terminal 2E (16-pin, RH OUT+) - GND Terminal 2G (16-pin, RH OUT-) - GND For rear speaker/tweeter Terminal 1D (8-pin, LH OUT+) - GND Terminal 1C (8-pin, LH OUT-) - GND Terminal 1F (8-pin, RH OUT+) - GND Terminal 1E (8-pin, RH OUT-) - GND For center speaker Terminal 1H (8-pin, CENTER OUT+) - GND Terminal 1G (8-pin, CENTER OUT-) - GND Is there continuity? | Yes | Repair or replace the related wiring harnesses or speaker unit. NOTE: If there is a short circuit between the speaker harnesses or speaker lead wire and ground, the protector circuit inside the audio unit operates to cut the sound. |
| No | Go to the next step. |
| 6 | Turn the ignition switch to LOCK position. Disconnect the audio amplifier connector (24-pin) and audio unit connector (24-pin.) Inspect the continuity between the audio amplifier terminal IL (24-pin, vehicle harness-side) and audio unit terminal J (24-pin, vehicle harness-side.) Is there continuity? | Yes | Replace the audio amplifier. (See AUDIO AMPLIFIER REMOVAL/INSTALLATION .) |
| No | Repair or replace the wiring harness between the audio amplifier and audio unit. Then go to the next step. |
| 7 | Is there any sound? | Yes | The system is normal. |
| No | Replace the audio amplifier. (See AUDIO AMPLIFIER REMOVAL/INSTALLATION .) |
| NOTE |
|---|
| If there is a short circuit between the speaker harnesses or speaker lead wire and ground, the protector circuit inside the audio unit operates to cut the sound. |
NO SOUND FROM ALL SPEAKERS - DIAGNOSTIC PROCEDURE
Vehicles Without Bose®
| 4 | No sound from some speaker/Possible DTC |
|---|
| Troubleshooting hints Open or short circuit in wiring harness between audio unit and speaker Short circuit inside speaker Speaker malfunction (e.g., any foreign material, broken) Audio unit malfunction |
NO SOUND FROM SOME SPEAKERS - POSSIBLE CAUSE
| STEP | INSPECTION | ACTION |
|---|
| 1 | Turn the audio unit power to ON. Press AUDIO CONT switch more than one second (BAL/FAD cancel mode.) Press the POWER/VOLUME switch and simultaneously press down the AUTO-M switch for approx. 2 seconds. NOTE: The sound speaker now changes in the order of left - front speaker, right - front speaker, right - rear speaker and left - rear speaker. Is there any speaker with no sound? | Yes | If no sound from some speaker: Go to the next step. If no sound at all: Go to the troubleshooting of "No. 3 No sound from all speakers". |
| No | The troubleshooting is completed. |
| 2 | Turn the ignition switch to the LOCK position. Disconnect the audio unit connector (24-pin.) Inspect the continuity between the audio unit wiring harness-side connector (24-pin) terminal and ground. Is there the continuity? | Yes | Repair or replace the suspect wiring harness or speaker unit. NOTE: If there is a short circuit between the speaker harness or speaker lead wire and ground, the protector circuit inside the audio unit operates to cut the sound. |
| No | Go to the next step. |
| 3 | Remove the suspect speaker. Disconnect the speaker connector (2-pin) and inspect the resistance of speaker. Is the resistance normal? Specification Speaker resistance + wiring harness resistance | Yes | Replace the audio unit. (See CENTER PANEL UNIT REMOVAL/INSTALLATION .) (See CENTER PANEL UNIT DISASSEMBLY/ASSEMBLY .) |
| No | Go to the next step. |
| 4 | Inspect the wiring harness between the audio unit and the suspect speaker. Is there the continuity? | Yes | Go to the next step |
| No | Repair or replace the suspect wiring harness. |
| 5 | Inspect the suspect speaker. Is the speaker normal? NOTE: If the speaker lead wire contacts either ground or vehicle frame, replace the speaker. | Yes | Replace the audio unit. |
| No | Go to the next step. (See CENTER PANEL UNIT REMOVAL/INSTALLATION .) (See CENTER PANEL UNIT DISASSEMBLY/ASSEMBLY .) |
| NOTE |
|---|
| The sound speaker now changes in the order of left - front speaker, right - front speaker, right - rear speaker and left - rear speaker. |
| NOTE |
|---|
| If there is a short circuit between the speaker harness or speaker lead wire and ground, the protector circuit inside the audio unit operates to cut the sound. |
| NOTE |
|---|
| If the speaker lead wire contacts either ground or vehicle frame, replace the speaker. |
NO SOUND FROM SOME SPEAKERS - DIAGNOSTIC PROCEDURE
| 4 | No sound from certain speaker/Possible DTC |
|---|
| Troubleshooting hints Poor connection of audio unit connector, terminal damage Poor connection of audio amplifier connector Open or short circuit in wiring harness between audio amplifier and audio unit Open or short circuit in wiring harness between audio amplifier and speaker Short circuit inside speaker Speaker malfunction (e.g., foreign material, broken) Audio amplifier malfunction |
NO SOUND FROM CERTAIN SPEAKER - POSSIBLE CAUSE
| STEP | INSPECTION | ACTION |
|---|
| 1 | Turn the audio unit on. Press AUDIO CONT switch 1 second (BAL/FED cancel mode.) Press the POWER/VOLUME switch and simultaneously press down the AUTO-M switch for approx. 2 seconds. NOTE: The speaker from which the sound is not emitted is specified using by that the speaker voice changes. Is there any speaker with no sound? | Yes | If no sound from some speakers: Go to the next step. If not sound at all: Go to the troubleshooting of "No. 3 No sound from all speakers". |
| No | The troubleshooting completed. (The system is normal.) |
| 2 | Does the same speaker have no sound if changing the sound source? (Radio, CD) | Yes | Go to the next step. |
| No | Replace the audio unit. (See CENTER PANEL UNIT REMOVAL/INSTALLATION .) (See CENTER PANEL UNIT DISASSEMBLY/ASSEMBLY .) NOTE: If a different speaker has no sound now, the audio unit is malfunctioning. |
| 3 | Turn the ignition switch to the LOCK position. Inspect the connection of the audio unit connector (24-pin), (for sound signal line) Is the connector connected securely? | Yes | Go to the next step. |
| No | Connect the audio unit connector (24-pin) securely. |
| 4 | Turn the ignition switch to the LOCK position. Remove the audio unit. Disconnect the audio unit connector (24-pin.) Inspect the continuity between the audio unit wiring harness-side connector and ground. For front speaker Terminal 1A (LH+) - GND Terminal 1C (LH-) - GND Terminal 1D (RH+) - GND Terminal 1F (RH-) - GND For rear speaker Terminal 1S (LH+) - GND Terminal 1U (LH-) - GND Terminal 1V (RH+) - GND Terminal 1X (RH-) - GND Is there continuity? | Yes | Go to the next step. |
| No | Go to Step 6. |
| 5 | Inspect the continuity between the following terminals of the audio amplifier wiring harness-side connector (24-pin) and the audio unit wiring harness-side connector (24-pin.) For front speaker (audio amplifier - audio unit) Terminal A (LH+) - Terminal 1D Terminal C (LH-) - Terminal 1C Terminal D (RH+) - Terminal 1F Terminal F (RH-) - Terminal 1E For rear speaker (audio amplifier - audio unit) Terminal S (LH+) - Terminal 1H Terminal U (LH-) - Terminal 1G Terminal V (RH+) - Terminal 1J Terminal X (RH-) - Terminal 1I Is there continuity? | Yes | Go to the next step. |
| No | Repair or replace the related wiring harnesses between the audio amplifier and the audio unit. Then go to the next step. |
| 6 | Inspect the connection of the audio amplifier connector (24-pin, 8-pin.) Is the connector connected securely? | Yes | Go to the next step. |
| No | Connect the audio amplifier (24-pin, 8-pin) securely. |
| 7 | Turn the ignition switch to LOCK position. Disconnect the audio amplifier connector (8-pin, 16-pin.) Inspect continuity between the following terminals of the audio amplifier connector and speaker connector. For front speaker (LH) Terminal 2B (16-pin) - Terminal A Terminal 2D (16-pin) - Terminal B For front tweeter (LH) Terminal 2K (16-pin) - Terminal A Terminal 21 (16-pin) - Terminal B For front speaker (RH) Terminal 20 (16-pin) - Terminal A Terminal 2M (16-pin) - Terminal B For front tweeter (RH) Terminal 2G (16-pin) - Terminal A Terminal 2E (16-pin) -Terminal B For rear speaker/tweeter (LH) Terminal 1C (8-pin) - Terminal A(speaker)/terminal A (tweeter) Terminal 1D (8-pin) - Terminal B(speaker)/terminal B (tweeter) For rear speaker/tweeter (RH) Terminal 1E (8-pin) - Terminal A(speaker)/terminal A (tweeter) Terminal 1F (8-pin) - Terminal B(speaker)/terminal B (tweeter) For center speaker Terminal 1G (8-pin) - Terminal A Terminal 1H (8-pin) - Terminal B Is there continuity? | Yes | Go to the next step. |
| No | Repair or replace the repair related wiring harnesses. |
| 8 | Turn the ignition switch to LOCK position Disconnect the audio amplifier connector (8-pin, 16-pin.) Inspect the continuity between the audio amplifier connector and ground: For front speaker Terminal 2D (16-pin, LH OUT+) - GND Terminal 2B (16-pin, LH OUT-) - GND Terminal 2M (16-pin, RH OUT+) - GND Terminal 2O (16-pin, RH OUT-) - GND For front tweeter Terminal 2I (16-pin, LH OUT+) - GND Terminal 2K (16-pin, LH OUT-) - GND Terminal 2E (16-pin, RH OUT+) - GND Terminal 2G (16-pin, RH OUT-) - GND For rear speaker/tweeter Terminal 1D (8-pin, LH OUT+) - GND Terminal 1C (8-pin, LH OUT-) - GND Terminal 1F (8-pin, RH OUT+) - GND Terminal 1E (8-pin, RH OUT-) - GND For center speaker Terminal 1H (8-pin, CENTER OUT+) - GND Terminal 1G (8-pin, CENTER OUT-) - GND Is there continuity? | Yes | Repair or replace the related wiring harness or speaker unit. (See FRONT DOOR SPEAKER REMOVAL/INSTALLATION .) (See REAR SPEAKER REMOVAL/INSTALLATION .) (See CENTER SPEAKER REMOVAL/INSTALLATION .) NOTE: If there is a short circuit between the speaker harness or speaker lead wire and ground, the protector circuit inside the audio unit operates to cut the sound. |
| No | Go to the next step. |
| 9 | Remove the suspect speaker. Disconnect the speaker connector (2-pin) and inspect the resistance of speaker. Is the resistance normal? Specification: Speaker resistance + wiring resistance NOTE: If the speaker lead wire contacts to either ground or vehicle frame, replace the speaker. | Yes | Replace the audio amplifier. (See AUDIO AMPLIFIER REMOVAL/INSTALLATION .) |
| No | Replace the speaker. (See FRONT DOOR SPEAKER REMOVAL/INSTALLATION .) (See REAR SPEAKER REMOVAL/INSTALLATION .) (See CENTER SPEAKER REMOVAL/INSTALLATION .) |
| NOTE |
|---|
| The speaker from which the sound is not emitted is specified using by that the speaker voice changes. |
| NOTE |
|---|
| If a different speaker has no sound now, the audio unit is malfunctioning. |
| NOTE |
|---|
| If there is a short circuit between the speaker harness or speaker lead wire and ground, the protector circuit inside the audio unit operates to cut the sound. |
| NOTE |
|---|
| If the speaker lead wire contacts to either ground or vehicle frame, replace the speaker. |
NO SOUND FROM CERTAIN SPEAKER - DIAGNOSTIC PROCEDURE
NO. 5 BROKEN SOUND OR POOR SOUND QUALITY [AUDIO]
| 5 | Broken sound or poor sound quality/Possible DTC: 09: Er21 |
|---|
| Troubleshooting hints Audio unit malfunction Audio amplifier malfunction (Bose®) Improper speaker installation Vibration of door trim and/or package trim Speaker malfunction (e.g., any foreign material, damage) |
BROKEN SOUND OR POOR SOUND QUALITY - POSSIBLE CAUSE
| STEP | INSPECTION | ACTION |
|---|
| 1 | Are there a broken sound or poor sound quality from all speakers? | Yes | Go to the next step. |
| No | Go to Step 5. |
| 2 | Inspect the sound while adjusting the sound volume. Is there a broken sound or poor sound quality between "15" and "20"? | Yes | Go to the next step. |
| No | The system is normal. |
| 3 | Inspect the BASS/TREB. Is there a poor sound quality at "-3 - +3" of "BASS/TREB"? NOTE: When press the AUDIO CONT switch for a few seconds, BASS/TREB is set at "0". | Yes | Go to the next step. |
| No | If there is a broken sound at "+6 - 6" of BASS/TREB with the maximum volume, the system is normal. |
| 4 | Attempt to duplicate the symptom on the other vehicle. Is the sound better than the customer's vehicle? | Yes | Without BOSE®: Replace the audio unit. (See CENTER PANEL UNIT REMOVAL/INSTALLATION .) (See CENTER PANEL UNIT DISASSEMBLY/ASSEMBLY .) With BOSE®: If noise occurs from the speaker of a specific channel, or the volume is minimized and the noise occurs: Replace the audio amplifier. (See AUDIO AMPLIFIER REMOVAL/INSTALLATION .) If the noise occurs from the speaker of two or more channels or the volume is minimized and the noise does not occurs. Replace the audio unit. (See CENTER PANEL UNIT REMOVAL/INSTALLATION .) (See CENTER PANEL UNIT DISASSEMBLY/ASSEMBLY .) |
| No | The system is normal. |
| 5 | Identify the speaker with a broken sound by adjusting BAL/FADE. Is the suspect speaker installed upward? | Yes | Go to Step 7. |
| No | Go to the next step. |
| 6 | Inspect the speaker installation condition. Is the speaker installed properly? | Yes | Go to the next step. |
| No | Install the speaker properly. |
| 7 | Remove the speaker. Is there any foreign material or damage on the speaker? | Yes | Repair or replace the suspect speaker. |
| No | Go to the next step. |
| 8 | Inspect the sound again. Is there broken sound? | Yes | Go to the next step. |
| No | Inspect the vibration from the door trim and/or package trim. Repair or replace the suspect trim as necessary. |
| 9 | Replace with a speaker known to be good, (e.g., swap right and left speakers) Does the broken sound appear at the same location? | Yes | Without BOSE®: Replace the audio unit. (See CENTER PANEL UNIT REMOVAL/INSTALLATION .) (See CENTER PANEL UNIT DISASSEMBLY/ASSEMBLY .) With BOSE®: If noise occurs from the speaker of a specific channel, or the volume is minimized and the noise occurs: Replace the audio amplifier. (See AUDIO AMPLIFIER REMOVAL/INSTALLATION .) If the noise occurs from the speaker of two or more channels or the volume is minimized and the noise does not occurs. Replace the audio unit. (See CENTER PANEL UNIT REMOVAL/INSTALLATION .) (See CENTER PANEL UNIT DISASSEMBLY/ASSEMBLY .) |
| No | Replace the speaker. (See FRONT DOOR SPEAKER REMOVAL/INSTALLATION .) (See REAR SPEAKER REMOVAL/INSTALLATION .) (See CENTER SPEAKER REMOVAL/INSTALLATION .) |
| NOTE |
|---|
| When press the AUDIO CONT switch for a few seconds, BASS/TREB is set at "0". |
BROKEN SOUND OR POOR SOUND QUALITY - DIAGNOSTIC PROCEDURE
NO. 6 SOUND BECOMES LOUDLY OR WEAKLY WHILE DRIVING THE VEHICLE [AUDIO]
| 6 | Sound becomes loudly or weakly while driving the vehicle/Possible DTC |
|---|
| Troubleshooting hints Audio unit malfunction (without Bose®) Audio amplifier malfunction (with Bose®) NOTE: Inspect the ALC function (without Bose®) or AUDIOPILOT function (with Bose®) while driving the vehicle with playing the CD, etc. |
| NOTE |
|---|
| Inspect the ALC function (without Bose®) or AUDIOPILOT function (with Bose®) while driving the vehicle with playing the CD, etc. |
SOUND BECOMES LOUDLY OR WEAKLY WHILE DRIVING VEHICLE - POSSIBLE CAUSE
| STEP | INSPECTION | ACTION |
|---|
| 1 | Does the ALC (without Bose®)/AUDIOPILOT function (with Bose®) turn on? | Yes | Go to the next step. |
| No | Without Bose®: Replace the audio unit. (See CENTER PANEL UNIT REMOVAL/INSTALLATION .) (See CENTER PANEL UNIT DISASSEMBLY/ASSEMBLY .) With Bose®: Replace the audio amplifier. (See AUDIO AMPLIFIER REMOVAL/INSTALLATION .) |
| 2 | Turn the ALC (without Bose®)/AUDIOPILOT function (with Bose®.) Does the sound change while driving the vehicle? | Yes | Without Bose®: Replace the audio unit. (See CENTER PANEL UNIT REMOVAL/INSTALLATION .) (See CENTER PANEL UNIT DISASSEMBLY/ASSEMBLY .) With Bose®: Replace the audio amplifier. (See AUDIO AMPLIFIER REMOVAL/INSTALLATION .) |
| No | The system is normal. Explains the ALC (without Bose®) ®)/AUDIOPILOT function (with Bose®) to the customer. |
SOUND BECOMES LOUDLY OR WEAKLY WHILE DRIVING VEHICLE - DIAGNOSTIC PROCEDURE
NO. 7 ALC FUNCTION IS INOPERATIVE [AUDIO]
| 7 | ALC function is inoperative/Possible DTC |
|---|
| Troubleshooting hints Open or short circuit in vehicle speed signal wiring harness (e. g., instrument cluster) CAN signal wiring harness malfunction Audio unit malfunction NOTE: Inspect the ALC function while driving the vehicle playing the CD, etc. |
| NOTE |
|---|
| Inspect the ALC function while driving the vehicle playing the CD, etc. |
ALC FUNCTION IS INOPERATIVE - POSSIBLE CAUSE
| STEP | INSPECTION | ACTION |
|---|
| 1 | Turn the ALC function to ON. Inspect the ALC function operation when driving the vehicle at ALC level 3. Does the ALC system operate properly? | Yes | The system is normal. Explains the ALC function to the customer. |
| No | Go to the next step. |
| 2 | Inspect the connection of the audio unit connector (24-pin, vehicle speed signal.) Inspect both the audio unit and wiring harness-side connector terminal I (24-pin) for poor connection (such as damaged/pulled-out pins, corrosion.) Are all the pins normal? | Yes | Go to the appropriate DTC inspection. Repair or replace the pins and/or the connector. |
| No | Replace the audio unit. |
ALC FUNCTION IS INOPERATIVE - DIAGNOSTIC PROCEDURE
NO. 8 AUDIOPILOT FUNCTION IS INOPERATIVE [AUDIO]
| 8 | AUDIOPILOT function is inoperative/Possible DTC |
|---|
| Troubleshooting hints Open or short circuit in AUDIOPILOT signal wiring harness Open or short circuit in AUDIOPILOT microphone signal wiring harness Audio amplifier malfunction |
AUDIOPILOT FUNCTION IS INOPERATIVE - POSSIBLE CAUSE
| STEP | INSPECTION | ACTION |
|---|
| 1 | Turn the AUDIOPILOT function on. Inspect the AUDIOPILOT function operation while driving the vehicle. Does the AUDIOPILOT system operation properly? | Yes | The system is normal. Explain the AUDIOPILOT function to the customer. |
| No | Go to the next step. |
| 2 | Inspect the connection of the audio unit connector (16-pin, AUDIOPILOT signal.) Inspect both the audio unit and wiring harness-side connector terminal 2B (16-pin) for a poor connection (such as damaged/pulled-out pins corrosion.) Are all the pins normal? | Yes | Repair or replace the pins and/or the connector. |
| No | Go to the next step. |
| 3 | Inspect the connection of the audio amplifier connector (16-pin, AUDIOPILOT signal.) Inspect both the audio amplifier and wiring harness-side connector terminal 3L (16-pin) for poor connection (such as damaged/pulled-out pins, corrosion.) Are all the pins normal? | Yes | Repair or replace the pins and/or the connector. |
| No | Go to the next step. |
| 4 | Inspect the connection of the audio amplifier connector (16-pin, AUDIOPILOT microphone signal.) Inspect both the audio amplifier and wiring harness-side connector terminals 30 and 3P (16-pin) for poor connection (such as damaged/pulled-out pins, corrosion.) Are all the pins normal? | Yes | Repair or replace the pins and/or the connector. |
| No | Replace the audio amplifier. (See AUDIO AMPLIFIER REMOVAL/INSTALLATION .) |
AUDIOPILOT FUNCTION IS INOPERATIVE - DIAGNOSTIC PROCEDURE
NO. 9 AUDIO SYSTEM ILLUMINATION DOES NOT ILLUMINATE AT ALL [AUDIO]
| 9 | Audio system illumination does not illuminate at all/Possible DTC: 09: Er20, 21 : Er19 |
|---|
| Troubleshooting hints Burnt fuse (TNS signal) Open or short circuit in TNS signal wiring harness Poor connection of audio unit connector, terminal damage Audio unit malfunction |
AUDIO SYSTEM ILLUMINATION DOES NOT ILLUMINATE AT ALL - POSSIBLE CAUSE
| STEP | INSPECTION | ACTION |
|---|
| 1 | Are all illumination on the audio unit turned OFF? | Yes | Go to the next step. |
| No | Replace the center panel. |
| 2 | Turn the ignition switch to the LOCK position. Inspect the fuse (ILLUMI.) Is the fuse normal? | Yes | Go to Step 4. |
| No | Go to the next step. |
| 3 | Turn the ignition switch to the LOCK position. Disconnect the audio unit connector (24-pin) and inspect the continuity between the audio unit wiring harness-side connector terminal E (TNS) and the ground. Is there continuity? | Yes | Repair or replace the short circuit in the suspect wiring harness. After repair the harness, replace with the appropriate standard fuse. |
| No | Go to the next step. |
| 4 | Inspect the connection of the audio unit connector (24-pin.) Inspect both the audio unit and wiring harness-side connector terminal E for poor connection (such as damaged/pulled-out pins, corrosion.) Are all the pins normal? | Yes | Go to the next step. |
| No | If poor connection of audio unit connector: Securely connect the audio unit connector. If the audio unit side connector is wrong: Replace the audio unit. (See CENTER PANEL UNIT REMOVAL/INSTALLATION .) (See CENTER PANEL UNIT DISASSEMBLY/ASSEMBLY .) If the wiring harness-side connector is wrong: Repair or replace the pins and/or the connector. |
| 5 | Connect the audio unit connector (24-pin.) Turn the ignition switch to the ACC position. Inspect the voltage at the audio unit connector terminal E (TNS.) Is the voltage B+ when the light switch is turned to the TNS position? | Yes | Replace the audio unit. (See CENTER PANEL UNIT REMOVAL/INSTALLATION .) (See CENTER PANEL UNIT DISASSEMBLY/ASSEMBLY .) |
| No | Repair or replace the suspect wiring harness (TNS signal.) |
AUDIO SYSTEM ILLUMINATION DOES NOT ILLUMINATE AT ALL - DIAGNOSTIC PROCEDURE
NO. 10 LCD DOES NOT DISPLAY AT ALL [AUDIO]
| 10 | LCD does not display at all/Possible DTC: 09: Er20, 16: Er12 |
|---|
| Troubleshooting hints Center panel unit malfunction Information display malfunction |
LCD DOES NOT DISPLAY AT ALL - POSSIBLE CAUSE
| STEP | INSPECTION | ACTION |
|---|
| 1 | Inspect the information display. (See INFORMATION DISPLAY INPUT/OUTPUT CHECK MODE .) Does the LCD display properly? | Yes | Go to the next step. |
| No | Replace the information display. |
| 2 | Press either CLC or SET/INFO switch on the information display. Does the beep sound? | Yes | Replace the audio unit. (See CENTER PANEL UNIT REMOVAL/INSTALLATION .)(See CENTER PANEL UNIT DISASSEMBLY/ASSEMBLY .) |
| No | Replace both audio unit and information display. (CAN communication malfunction) |
LCD DOES NOT DISPLAY AT ALL - DIAGNOSTIC PROCEDURE
