Troubleshooting Index
| No. | Symptom | Possible DTC |
|---|
| 1 | AF noise or POP noise at all sources (Radio, CD) | 09: Er20, 09: Er21 |
| 2 | No power to the entire audio system | 09: Er20 |
| 3 | No sound from all the speakers | 03: Er07, 03: Er10, 06: Er07, 06: Er10, 09: Er20, 09: Er21, 10: Er10, 22: Er07, 22: Er10 |
| 4 | No sound from some speakers | |
| 5 | Sound break-up or poor sound quality | 09: Er21 |
| 6 | Volume increases/decreases while driving the vehicle | |
| 7 | ALC function is inoperative | |
| 8 | AudioPilot function is inoperative | |
| 9 | No audio system illumination | 09: Er20, 21: Er19 |
Scheme 52
Scheme 52: Quick Diagnostic Table (Entire Audio System)
Diagnostic Procedure
| STEP | INSPECTION | ACTION |
|---|
| 1 | Inspect the vehicle battery voltage. Is the vehicle battery voltage normal? Specification: Ignition switch ON: 11.5 V or more Idle: 12.5 V or more | Yes | Go to the next step. |
| No | Charge the battery, then go to the next step. |
| 2 | Turn the audio system on. Is there any noise? | Yes | Go to the next step. |
| No | The system is normal. Explain to the customer that the vehicle battery voltage was low. |
| 3 | Are any of the following after-market equipment installed? (Inspect especially near the antenna.) Radar detector Remote engine starter Anti-theft device Other | Yes | Go to the next step. |
| No | Go to the Step 5. |
| 4 | Remove the after-market equipment. Turn the audio system on. Is there any noise? | Yes | Go to the next step. |
| No | The system is normal. The after-market electrical devices might be the cause of the noise. |
| 5 | Is there noise coming from all the speakers? | Yes | Go to the Step 7. |
| No | Go to the next step. |
| 6 | Inspect the suspect speaker. Is the speaker normal? | Yes | Go to the next step. |
| No | If there is any foreign material adhering to the speaker: Remove the foreign material from the speaker. If the speaker is malfunctioning: Replace the speaker. (See DOOR SPEAKER REMOVAL/INSTALLATION .) (See REAR SPEAKER REMOVAL/INSTALLATION .) (See CENTER SPEAKER REMOVAL/INSTALLATION .) If the speaker is not installed properly: Install the speaker properly. |
| 7 | Attempt to duplicate the symptom on another vehicle. Does the noise level improve compared to the customer's vehicle? | Yes | Go to the next step. |
| No | The system is normal. Explain the noise generation mechanism to the customer. NOTE: The noise level that may be heard varies depending on the operating speed of the audio power and/or mode switches. |
| 8 | Turn the ignition switch to the LOCK position. Remove the audio unit (without BOSE) or the audio amplifier (with BOSE). Inspect the connection of the audio unit connector (without BOSE, 24-pin) or the audio amplifier connector (with BOSE, 8-pin) (for sound signal line). Is the connector connected securely? | Yes | Go to the next step. |
| No | Repair or replace the terminal or connector. Go to the next step. |
| 9 | Is there any noise? | Yes | Go to the next step. |
| No | The system is normal. |
| 10 | Inspect the ground condition of the manual antenna. Is the ground condition normal? | Yes | Repair or replace the ground. Go to the next step. |
| No | Go to the next step. |
| 11 | Is there any noise? | Yes | Without BOSE Replace the audio unit. (See CENTER PANEL UNIT REMOVAL/INSTALLATION .) (See CENTER PANEL UNIT DISASSEMBLY/ASSEMBLY .) (See AUDIO UNIT DISASSEMBLY/ASSEMBLY .) With BOSE Replace the audio amplifier if any of the following occur: (See AUDIO AMPLIFIER REMOVAL/INSTALLATION .) The noise occurs from a specific speaker. Noise occurs when the volume is minimized. Replace the audio unit if any of the following occur: (See CENTER PANEL UNIT REMOVAL/INSTALLATION .) (See CENTER PANEL UNIT DISASSEMBLY/ASSEMBLY .) (See AUDIO UNIT DISASSEMBLY/ASSEMBLY .) The noise occurs from two or more speakers. No noise occurs when the volume is minimized. |
| No | The system is normal. |
| NOTE |
|---|
| The noise level that may be heard varies depending on the operating speed of the audio power and/or mode switches. |
AF NOISE OR POP NOISE AT ALL SOURCES (RADIO, CD) DIAGNOSTIC PROCEDURE
| STEP | INSPECTION | ACTION |
|---|
| 1 | Turn the ignition switch to the LOCK position. Inspect the following fuses: ACC ROOM 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 a 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 the wiring harness-side connectors for a 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 audio unit connector has a poor connection: Securely connect the audio unit connector. If the audio unit side connector is malfunctioning: Replace the audio unit. (See CENTER PANEL UNIT REMOVAL/INSTALLATION .) (See CENTER PANEL UNIT DISASSEMBLY/ASSEMBLY .) (See AUDIO UNIT DISASSEMBLY/ASSEMBLY .) If the wiring harness-side connector is malfunctioning: 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 related wiring harnesses. |
| 4 | Turn the ignition switch to the LOCK position. Remove the audio unit connector (24-pin). Inspect the continuity between 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 .) (See AUDIO UNIT DISASSEMBLY/ASSEMBLY .) |
| No | Repair or replace the wiring harness. |
NO POWER TO ENTIRE AUDIO SYSTEM DIAGNOSTIC PROCEDURE
| STEP | INSPECTION | ACTION |
|---|
| 1 | Press the AUDIO CONT button for 2 s or more. Play the CD or radio. Adjust the volume between "10" and "15". Is there sound? | Yes | The system is normal. |
| No | Go to the next step. |
| 2 | Measure the voltage at audio amplifier terminal A. (vehicle wiring harness-side) Is the voltage B+? | Yes | Go to Step 4. |
| No | Repair or replace the 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 the LOCK position. Disconnect the audio amplifier connector (8-pin, 24-pin). Inspect the continuity between the following terminals of the audio amplifier connector and the speaker connector: For door speaker (LH) Terminal 1M, 1I - Terminal B Terminal 1K, 1O - Terminal A For door speaker (RH) Terminal 2C, 2E - Terminal A Terminal 2D, 2F - Terminal B For rear speakers Terminal 1U - Terminal B Terminal 1W - Terminal A For center speaker Terminal 1Q - Terminal B Terminal 1S - Terminal A Is there continuity? | Yes | Go to the next step. |
| No | Repair or replace the related wiring harnesses. |
| 5 | Turn the ignition switch to the LOCK position. Disconnect the audio amplifier connector (8-pin, 24-pin). Inspect the continuity between the audio amplifier connector and ground: For door speakers Terminal 1M (24-pin, LH OUT+) - GND Terminal 11 (24-pin, LH OUT+) - GND Terminal 1K (24-pin, LH OUT-) - GND Terminal 1O (24-pin, LH OUT-) - GND Terminal 2C (8-pin, RH OUT-) - GND Terminal 2D (8-pin, RH OUT+) - GND Terminal 2F (8-pin, RH OUT+) - GND Terminal 2E (8-pin, RH OUT-) - GND For rear speakers Terminal 1U (24-pin, OUT+) - GND Terminal 1W (24-pin, OUT-) - GND For center speaker Terminal 1Q (24-pin, OUT+) - GND Terminal 1S (24-pin, OUT-) - GND Is there continuity? | Yes | Repair or replace the related wiring harnesses or the speaker unit. NOTE: If there is a short circuit between the speaker wiring harnesses or the 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 the LOCK position. Disconnect the audio amplifier connector (24-pin) and audio unit connector (24-pin). Inspect the continuity between audio amplifier terminal 1 V (vehicle wiring harness-side) and the audio unit terminal 1J (vehicle wiring 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 the audio unit. 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 wiring harnesses or the speaker lead wire and ground, the protector circuit inside the audio unit operates to cut the sound. |
NO SOUND FROM ALL SPEAKERS (VEHICLES WITH BOSE) DIAGNOSTIC PROCEDURE
| STEP | INSPECTION | ACTION |
|---|
| 1 | Press the AUDIO CONT button for 2 s or more. 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 speakers Terminal 1A (LH+) - GND Terminal 1C (LH-) - GND Terminal 1D (RH+) - GND Terminal 1F (RH-) - GND For rear speakers Terminal 1S (LH+) - GND Terminal 11 (LH-) - GND Terminal 1V (RH+) - GND Terminal 1X (RH-) - GND Is there continuity? | Yes | Repair or replace the related wiring harnesses or the speaker unit. NOTE: If there is a short circuit between the speaker wiring harnesses or the speaker lead wire and ground, the protector circuit inside the audio unit operates to cut the sound. |
| No | Replace the audio unit. (See CENTER PANEL UNIT REMOVAL/INSTALLATION .) (See CENTER PANEL UNIT DISASSEMBLY/ASSEMBLY .) (See AUDIO UNIT DISASSEMBLY/ASSEMBLY .) |
| NOTE |
|---|
| If there is a short circuit between the speaker wiring harnesses or the speaker lead wire and ground, the protector circuit inside the audio unit operates to cut the sound. |
NO SOUND FROM ALL SPEAKERS (VEHICLES WITHOUT BOSE) DIAGNOSTIC PROCEDURE
| STEP | INSPECTION | ACTION |
|---|
| 1 | Turn the audio unit on. Press the AUDIO CONT button 1 s or more (BAL/FAD cancel mode). Press the POWER button and simultaneously press down the SCAN/AUTO-M switch for approx. 2 s. NOTE: This function outputs sound to each speaker sequentially to allow determination of which speaker is not emitting sound. Is there any speaker that does not output sound? | Yes | If there is no sound from some speakers: Go to the next step. If there is no sound at all: Go to troubleshooting NO.3 NO SOUND FROM ALL SPEAKERS [VEHICLES WITHOUT BOSE] . |
| No | The troubleshooting is completed. |
| 2 | Does the same speaker output no sound if the audio source is changed? (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 .) (See AUDIO UNIT DISASSEMBLY/ASSEMBLY .) NOTE: If a different speaker outputs no sound, 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 door speakers Terminal 1A (LH+)-GND Terminal 1C (LH-) - GND Terminal 1D (RH+) - GND Terminal 1F (RH-) - GND For rear speakers 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 door speakers Terminal 1T (LH+) - Terminal 1A (LH+) Terminal 1R (LH-) - Terminal 1C (LH-) Terminal 1P (RH+) - Terminal 1D (RH+) Terminal 1N (RH-) - Terminal 1F (RH-) For rear speakers Terminal 1L (LH+) - Terminal 1S (LH+) Terminal 1J (LH-) - Terminal 1U (LH-) Terminal 1H (RH+) -Terminal 1X (RH-) Terminal 1F (RH-) - Terminal 1V (RH+) 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. 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 connector (24-pin, 8-pin) securely. |
| 7 | Disconnect the audio amplifier (24-pin) and the speaker connector. Inspect the continuity between the following terminals of the audio amplifier connector (24-pin) and the speaker connector. For door speaker (LH) Terminal 1M, 1I - Terminal B Terminal 1K, 1O - Terminal A For door speaker (RH) Terminal 2C, 2E - Terminal A Terminal 2D, 2F - Terminal B For rear speakers Terminal 1U - Terminal B Terminal 1W - Terminal A For center speaker Terminal 1Q - Terminal B Terminal 1S - Terminal A Is there continuity? | Yes | Go to the next step. |
| No | Repair or replace the related wiring harnesses. |
| 8 | Inspect the continuity between the following terminals of the audio amplifier wiring harness-side connector (24-pin) and ground. For door speakers Terminal 1M (LH OUT+) - GND Terminal 1K (LH OUT-) - GND Terminal 1I (LH OUT-) - GND Terminal 1O (LH OUT+) - GND Terminal 2C (RH OUT-) - GND Terminal 2D (RH OUT+) - GND Terminal 2F (RH OUT+) - GND Terminal 2E (RH OUT-) - GND For rear speakers Terminal 1U (LH OUT+) - GND Terminal 1W (RH OUT-) - GND For center speaker Terminal 1Q (OUT+) - GND Terminal 1S (OUT-) - GND Is there continuity? | Yes | Repair or replace for a short circuit between the audio amplifier and speaker wiring harnesses or inside the speaker unit. NOTE: If there is a short circuit between the speaker wiring harnesses or the speaker lead wire and ground, the protector circuit inside the audio amplifier 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 the speaker. Is the resistance normal? Specification: Speaker resistance + wiring harness resistance NOTE: If the speaker lead wire contacts either the ground or vehicle frame, replace the speaker. | Yes | Replace the audio amplifier. (See AUDIO AMPLIFIER REMOVAL/INSTALLATION .) |
| No | Replace the speaker. (See DOOR SPEAKER REMOVAL/INSTALLATION .) (See REAR SPEAKER REMOVAL/INSTALLATION .) (See CENTER SPEAKER REMOVAL/INSTALLATION .) |
| NOTE |
|---|
| This function outputs sound to each speaker sequentially to allow determination of which speaker is not emitting sound. |
| NOTE |
|---|
| If a different speaker outputs no sound, the audio unit is malfunctioning. |
| NOTE |
|---|
| If there is a short circuit between the speaker wiring harnesses or the speaker lead wire and ground, the protector circuit inside the audio amplifier operates to cut the sound. |
| NOTE |
|---|
| If the speaker lead wire contacts either the ground or vehicle frame, replace the speaker. |
NO SOUND FROM SOME SPEAKERS (VEHICLES WITH BOSE) DIAGNOSTIC PROCEDURE
| STEP | INSPECTION | ACTION |
|---|
| 1 | Turn the audio unit on. Press the AUDIO CONT button 1 s or more (BAL/FAD cancel mode). Press the POWER button and simultaneously press down the SCAN/AUTO-M switch for approx. 2 s. NOTE: The speaker outputting sound changes in the order of left- door speaker, right - door speaker, left - rear speaker and right - rear speaker. Is there any speaker that does not output 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 [VEHICLES WITHOUT BOSE] . |
| No | The troubleshooting is completed. |
| 2 | Does the same speaker output no sound if the audio source is changed? (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 .) (See AUDIO UNIT DISASSEMBLY/ASSEMBLY .) NOTE: If a different speaker outputs no sound, 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 door speakers Terminal 1A (LH+) - GND Terminal 1C (LH-) - GND Terminal 1D (RH+) - GND Terminal 1F (RH-) - GND For rear speakers Terminal 1S (LH+) - GND Terminal 1U (LH-) - GND Terminal 1V (RH+) - GND Terminal 1X (RH-) - 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 wiring harnesses or the speaker lead wire and ground, the protector circuit inside the audio unit operates to cut the sound. |
| No | Go to the next step. |
| 5 | Remove the suspect speaker. Disconnect the speaker connector (2-pin) and inspect the resistance of the speaker. Is the resistance normal? Specification: Speaker resistance + wiring harness resistance NOTE: If the speaker lead wire contacts either the ground or vehicle frame, replace the speaker. | Yes | Replace the speaker. (See DOOR SPEAKER REMOVAL/INSTALLATION .) (See REAR SPEAKER REMOVAL/INSTALLATION .) (See CENTER SPEAKER REMOVAL/INSTALLATION .) |
| No | Replace the audio unit. (See CENTER PANEL UNIT REMOVAL/INSTALLATION .) (See CENTER PANEL UNIT DISASSEMBLY/ASSEMBLY .) (See AUDIO UNIT DISASSEMBLY/ASSEMBLY .) |
| NOTE |
|---|
| The speaker outputting sound changes in the order of left- door speaker, right - door speaker, left - rear speaker and right - rear speaker. |
| NOTE |
|---|
| If a different speaker outputs no sound, the audio unit is malfunctioning. |
| NOTE |
|---|
| If there is a short circuit between the speaker wiring harnesses or the 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 the ground or vehicle frame, replace the speaker. |
NO SOUND FROM SOME SPEAKERS (VEHICLES WITHOUT BOSE) DIAGNOSTIC PROCEDURE
| STEP | INSPECTION | ACTION |
|---|
| 1 | Is there sound break-up 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 sound break-up 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 poor sound quality between "-3 - +3" of the "BASS/TREB"? NOTE: When the AUDIO CONT button is pressed for a few seconds, BASS/TREB is set to "0". | Yes | Go to the next step. |
| No | If there is sound break-up between "-6-+6" of the BASS/TREB at the maximum volume, the system is normal. |
| 4 | Attempt to duplicate the symptom on another vehicle. Is the sound quality 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 .) (See AUDIO UNIT DISASSEMBLY/ASSEMBLY .) With BOSE Replace the audio amplifier if the following occurs: (See AUDIO AMPLIFIER REMOVAL/INSTALLATION .) Noise occurs from a specific speaker. Replace the audio unit if the following occurs: (See CENTER PANEL UNIT REMOVAL/INSTALLATION .) (See CENTER PANEL UNIT DISASSEMBLY/ASSEMBLY .) (See AUDIO UNIT DISASSEMBLY/ASSEMBLY .) Noise occurs from two or more speakers. |
| No | The system is normal. |
| 5 | Identify the speaker with sound break-up by adjusting BAL/FADE. Is the suspect speaker pointed 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 penetration or damage to the speaker? | Yes | Repair or replace the suspect speaker. |
| No | Go to the next step. |
| 8 | Inspect the sound again. Is there sound break-up? | Yes | Go to the next step. |
| No | Inspect for vibration from the door trim and/or package trim. Repair or replace the suspect trim if necessary. |
| 9 | Replace with a speaker known to be operational, (e.g., swap right and left speakers) Is the sound break-up heard at the same location? | Yes | Without BOSE Replace the audio unit. (See CENTER PANEL UNIT REMOVAL/INSTALLATION .) (See CENTER PANEL UNIT DISASSEMBLY/ASSEMBLY .) (See AUDIO UNIT DISASSEMBLY/ASSEMBLY .) With BOSE Replace the audio amplifier if the following occurs: (See AUDIO AMPLIFIER REMOVAL/INSTALLATION .) Noise occurs from a specific speaker. Replace the audio unit if the following occurs: (See CENTER PANEL UNIT REMOVAL/INSTALLATION .) (See CENTER PANEL UNIT DISASSEMBLY/ASSEMBLY .) (See AUDIO UNIT DISASSEMBLY/ASSEMBLY .) Noise occurs from two or more speakers. |
| No | Replace the speaker. (See DOOR SPEAKER REMOVAL/INSTALLATION .) (See REAR SPEAKER REMOVAL/INSTALLATION .) (See CENTER SPEAKER REMOVAL/INSTALLATION .) |
| NOTE |
|---|
| When the AUDIO CONT button is pressed for a few seconds, BASS/TREB is set to "0". |
SOUND BREAK-UP OR POOR SOUND QUALITY DIAGNOSTIC PROCEDURE
| STEP | INSPECTION | ACTION |
|---|
| 1 | Does the ALC function or AudioPilot function 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 .) (See AUDIO UNIT DISASSEMBLY/ASSEMBLY .) With BOSE Replace the audio amplifier if the following occurs: (See AUDIO AMPLIFIER REMOVAL/INSTALLATION .) The volume changes suddenly. |
| 2 | Turn the ALC function or AudioPilot function off. Does the sound change while driving the vehicle? | Yes | Replace the audio unit. (See CENTER PANEL UNIT REMOVAL/INSTALLATION .) (See CENTER PANEL UNIT DISASSEMBLY/ASSEMBLY .) (See AUDIO UNIT DISASSEMBLY/ASSEMBLY .) |
| No | The system is normal. Explain the ALC function to the customer. |
VOLUME INCREASES/DECREASES WHILE DRIVING VEHICLE DIAGNOSTIC PROCEDURE
| STEP | INSPECTION | ACTION |
|---|
| 1 | Turn the ALC function on. Inspect the ALC function operation while driving the vehicle. (ALC level 3) Does the ALC system operate properly? | Yes | The system is normal. Explain the ALC function to the customer. |
| No | Go to the next step. |
| 2 | Verify the connection of the audio unit connector (24-pin, vehicle speed signal). Inspect both the audio unit and wiring harness-side connector terminal 11 for a poor connection (such as damaged/pulled-out pins, corrosion). Are all the pins normal? | Yes | Repair or replace the pins and/or connector. |
| No | Replace the audio unit. (See CENTER PANEL UNIT REMOVAL/INSTALLATION .) (See CENTER PANEL UNIT DISASSEMBLY/ASSEMBLY .) (See AUDIO UNIT DISASSEMBLY/ASSEMBLY .) |
ALC FUNCTION INOPERATIVE DIAGNOSTIC PROCEDURE
| STEP | INSPECTION | ACTION |
|---|
| 1 | Turn the AudioPilot function on. Inspect the AudioPilot function operation while driving the vehicle. Does the AudioPilot system operate 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 (24-pin, AudioPilot signal). Inspect both the audio unit and wiring harness-side connector terminal T 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 (24-pin, AudioPilot signal). Inspect both the audio amplifier and wiring harness-side connector terminal B 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. |
| 4 | Inspect the connection of the audio unit connector (24-pin, Mic unit signal). Inspect both the audio amplifier and wiring harness-side connector terminals E and G 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 | Replace the audio amplifier. (See AUDIO AMPLIFIER REMOVAL/INSTALLATION .) |
AUDIOPILOT FUNCTION INOPERATIVE DIAGNOSTIC PROCEDURE
| STEP | INSPECTION | ACTION |
|---|
| 1 | Is all the illumination on the audio unit turned off? | Yes | Go to the next step. |
| No | Replace the center panel. (See CENTER PANEL UNIT REMOVAL/INSTALLATION .) (See CENTER PANEL UNIT DISASSEMBLY/ASSEMBLY .) |
| 2 | Turn the ignition switch to the LOCK position. Inspect the fuse (ILLUMI). Is the fuse normal? | Yes | Go to the 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 1E (TNS) and the ground. Is there continuity? | Yes | Repair or replace the short circuit in the suspect wiring harness. After repairing the wiring 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 1E for a poor connection (such as damaged/pulled-out pins, corrosion). Are all the pins normal? | Yes | Go to the next step. |
| No | If audio unit connector has a poor connection: Securely connect the audio unit connector. If the audio unit side connector is malfunctioning: Replace the audio unit. (See CENTER PANEL UNIT REMOVAL/INSTALLATION .) (See CENTER PANEL UNIT DISASSEMBLY/ASSEMBLY .) (See AUDIO UNIT DISASSEMBLY/ASSEMBLY .) If the wiring harness-side connector is malfunctioning: 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 1E (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 .) (See AUDIO UNIT DISASSEMBLY/ASSEMBLY .) |
| No | Repair or replace the related wiring harness (TNS signal). |
AUDIO SYSTEM ILLUMINATION DIAGNOSTIC PROCEDURE
| No. | Items | Symptom | Possible DTC |
|---|
| 1 | CD player/changer | CD player/changer does not load the CD or ejects the CD immediately | 03: Er01, 03: Er10, 06: Er01, 06: Er10, 10: Er01, 10: Er10, 22: Er01, 22: Er10 |
| 2 | CD player/changer does not eject the CD | 03: Er01, 06: Er01, 10: Er01, 22: Er01 |
| 3 | CD player/changer does not play the CD/No sound | 03: Er07, 03: Er10, 06: Er07, 10: Er07, 22: Er07 |
| 4 | Sound jumps | 03: Er02, 06: Er02, 10: Er02, 22: Er02 |
| 5 | Scratches on the CD | 03: Er02, 06: Er02, 10: Er02, 22: Er02 |
| 6 | CD changer | Disc changer is inoperative | 06: Er01, 06: Er10, 22: Er01, 22: Er10 |
| 7 | MP3 applicable CD player/changer | CD player does not play the MP3-formatted file | 10: Er07, 22: Er07 |
| 8 | MP3-formatted file folder selection is inoperative/Track search is inoperative | 10: Er02, 22: Er02 |
| 9 | CD player does not indicate the MP3 title text | 10: Er02, 22: Er02 |
| 10 | CD player does not play the audio data (CDDA) | 10: Er02, 22: Er02 |
| 11 | CD player/changer | Track change is inoperative | 03: Er02, 06: Er02, 10: Er02, 22: Er02 |
FOREWORD [CD PLAYER/CHANGER] TROUBLESHOOTING INDEX
Scheme 53
| STEP | INSPECTION | ACTION |
|---|
| 1 | Is CD inserted properly, label-side up? | Yes | Go to the next step. |
| No | Explain to the customer that the CD should be inserted into the slot label-side up. |
| 2 | Replace with a CD known to be operational. Does the CD player/changer load the CD? | Yes | Go to the next step. |
| No | Replace the audio unit. (See CENTER PANEL UNIT REMOVAL/INSTALLATION .) (See CENTER PANEL UNIT DISASSEMBLY/ASSEMBLY .) (See AUDIO UNIT DISASSEMBLY/ASSEMBLY .) |
| 3 | Visually inspect the CD. Is there any dirt, scratches or deformation on the CD? Is the CD a non-conventional disc? | Yes | Explain to the customer that the defective CD or non-conventional disc cannot be used. |
| No | Go to the next step. |
| 4 | Turn the ignition switch to the LOCK position. Inspect the connection of the audio unit connector (24-pin). Inspect both the audio unit connector and wiring harness-side connector for a poor connection, (such as damaged/bent/pulled-out pins, corrosion) All the pins and connector normal? | Yes | Replace the audio unit. (See CENTER PANEL UNIT REMOVAL/INSTALLATION .) (See CENTER PANEL UNIT DISASSEMBLY/ASSEMBLY .) (See AUDIO UNIT DISASSEMBLY/ASSEMBLY .) |
| No | If the audio unit connector/pin is malfunctioning: Replace the audio unit. (See CENTER PANEL UNIT REMOVAL/INSTALLATION .) (See CENTER PANEL UNIT DISASSEMBLY/ASSEMBLY .) (See AUDIO UNIT DISASSEMBLY/ASSEMBLY .) If the wiring harness-side connector/pin is malfunctioning: Repair or replace the pins and/or the connector. |
CD PLAYER/CHANGER DOES NOT LOAD CD OR EJECTS CD IMMEDIATELY DIAGNOSTIC PROCEDURE
| STEP | INSPECTION | ACTION |
|---|
| 1 | Inspect the operation of the audio system other than the CD player/changer (e.g. Radio). Does the other audio system operate? | Yes | Go to Step 3. |
| No | Go to the next step. |
| 2 | Turn the ignition switch to the LOCK position. Inspect the connection of the audio unit connector (24-pin). Inspect both audio unit connector and wiring harness-side connector for poor connection, (such as damaged/bent/pulled-out pins, corrosion) Are all the pins and connectors normal? | Yes | Go to the next step. |
| No | If the audio unit connector/pin is malfunctioning: Replace the audio unit. (See CENTER PANEL UNIT REMOVAL/INSTALLATION .) (See CENTER PANEL UNIT DISASSEMBLY/ASSEMBLY .) (See AUDIO UNIT DISASSEMBLY/ASSEMBLY .) If the wiring harness-side connector/pin is malfunctioning: Repair or replace the pins and/or the connector. |
| 3 | Eject the CD. Is the CD ejected from the CD player/changer? | Yes | Go to the next step. |
| No | Inspect the center panel and CD cover installation. Securely install the center panel and/or CD cover if necessary. |
| 4 | Insert the CD into the CD player/changer. Does the CD insert into the CD player/changer smoothly? | Yes | Replace the audio unit. (See CENTER PANEL UNIT REMOVAL/INSTALLATION .) (See CENTER PANEL UNIT DISASSEMBLY/ASSEMBLY .) (See AUDIO UNIT DISASSEMBLY/ASSEMBLY .) |
| No | Install the center panel and/or CD cover properly, then go to the next step. |
| 5 | Is the CD ejected from the CD player/changer? | Yes | Troubleshooting completed. Explain repairs to the customers. |
| No | Replace the audio unit. (See CENTER PANEL UNIT REMOVAL/INSTALLATION .) (See CENTER PANEL UNIT DISASSEMBLY/ASSEMBLY .) (See AUDIO UNIT DISASSEMBLY/ASSEMBLY .) |
CD PLAYER/CHANGER DOES NOT EJECT CD DIAGNOSTIC PROCEDURE
| STEP | INSPECTION | ACTION |
|---|
| 1 | Turn the radio on and check for sound. Is there sound output? NOTE: Check the volume dial position. | Yes | Go to the next step. |
| No | Go to symptom troubleshooting No.3 (Audio system). |
| 2 | Was the CD inserted properly, label-side up? | Yes | Go to the next step. |
| No | Explain to the customer that the CD should be inserted into the slot label-side up. |
| 3 | Replace with a CD known to be operational. Does the CD player/changer load the CD? | Yes | Go to the next step. |
| No | Replace the audio unit. (See CENTER PANEL UNIT REMOVAL/INSTALLATION .) (See CENTER PANEL UNIT DISASSEMBLY/ASSEMBLY .) (See AUDIO UNIT DISASSEMBLY/ASSEMBLY .) |
| 4 | Visually inspect the CD. Is there any dirt, scratches or deformation on the CD? Is the CD a non-conventional disc? Is there a CD with a MP3 recording? | Yes | Explain to the customer that the defective CD or non-conventional disc cannot be use. |
| No | Replace the audio unit. (See CENTER PANEL UNIT REMOVAL/INSTALLATION .) (See CENTER PANEL UNIT DISASSEMBLY/ASSEMBLY .) (See AUDIO UNIT DISASSEMBLY/ASSEMBLY .) |
| NOTE |
|---|
| Check the volume dial position. |
CD PLAYER/CHANGER DOES NOT PLAY CD/NO SOUND DIAGNOSTIC PROCEDURE
| STEP | INSPECTION | ACTION |
|---|
| 1 | Does the sound jump when the vehicle is stopped? | Yes | Go to the Step 6. |
| No | Go to the next step. |
| 2 | Drive the vehicle. Does the sound jump when driving over uneven surfaces? | Yes | Go to the next step. |
| No | Go to the Step 6. |
| 3 | Is the audio unit installed securely? | Yes | Go to the next step. |
| No | Install the audio unit securely. |
| 4 | Inspect the tire pressure. Is the tire pressure normal? | Yes | Replace the audio unit. (See CENTER PANEL UNIT REMOVAL/INSTALLATION .) (See CENTER PANEL UNIT DISASSEMBLY/ASSEMBLY .) (See AUDIO UNIT DISASSEMBLY/ASSEMBLY .) |
| No | Go to the next step. |
| 5 | Adjust the tire pressure within specification. Does the sound jump when driving the vehicle? | Yes | Replace the audio unit. (See CENTER PANEL UNIT REMOVAL/INSTALLATION .) (See CENTER PANEL UNIT DISASSEMBLY/ASSEMBLY .) (See AUDIO UNIT DISASSEMBLY/ASSEMBLY .) |
| No | Audio system is normal. Explain repairs to the customers. |
| 6 | Replace with a CD other than the one known to be operational. Does the sound jump when driving the vehicle? | Yes | Replace the audio unit. (See CENTER PANEL UNIT REMOVAL/INSTALLATION .) (See CENTER PANEL UNIT DISASSEMBLY/ASSEMBLY .) (See AUDIO UNIT DISASSEMBLY/ASSEMBLY .) |
| No | Audio system is normal. Explain to the customer that the CD is malfunctioning. |
SOUND JUMPS DIAGNOSTIC PROCEDURE
| STEP | INSPECTION | ACTION |
|---|
| 1 | Were multiple CDs inserted into the CD player at the same time? | Yes | Explain to the customer to insert CDs one by one. |
| No | Go to the next step. |
| 2 | Visually inspect the CD. Is the CD deformed disc (e.g., out of specification (thickness), bent disc)? | Yes | Audio system is normal. Explain to the customer that the CD is malfunctioning. |
| No | Replace the audio unit. (See CENTER PANEL UNIT REMOVAL/INSTALLATION .) (See CENTER PANEL UNIT DISASSEMBLY/ASSEMBLY .) (See AUDIO UNIT DISASSEMBLY/ASSEMBLY .) |
SCRATCHES ON CD DIAGNOSTIC PROCEDURE
| STEP | INSPECTION | ACTION |
|---|
| 1 | Inspect the CD changer operation. Does the CD changer operate properly? | Yes | Go to the next step. |
| No | Go to symptom troubleshooting NO.3 CD PLAYER/CHANGER DOES NOT PLAY THE CD/NO SOUND . |
| 2 | Inspect the following: Is the display shown properly when operating the disc change button? Does the radio band selection operate properly? | Yes | Replace the audio unit. (See CENTER PANEL UNIT REMOVAL/INSTALLATION .) (See CENTER PANEL UNIT DISASSEMBLY/ASSEMBLY .) (See AUDIO UNIT DISASSEMBLY/ASSEMBLY .) |
| No | Go to the next step. |
| 3 | Inspect the center panel installation. Does the CD changer change the disc properly after re-installing the center panel? | Yes | Install the center panel securely and properly. |
| No | Go to CONFIRMATION STEP 1: AUDIO PANEL SWITCH CONFIRMATION . Replace the center panel if necessary. |
DISC CHANGE INOPERATIVE DIAGNOSTIC PROCEDURE
| STEP | INSPECTION | ACTION |
|---|
| 1 | Inspect the written format of the recorded data on the CD-R/RW. Is the write format correct? | Yes | Go to the next step. |
| No | Write the CD-R/RW to the correct specification. |
| 2 | Inspect the recorded data on the CD-R/RW. Are there MP3 or other format data on the CD-R/RW. | Yes | Replace with an operational CD-R/RW (MP3-formatted file data only), then inspect the CD player operation. If the CD player plays the MP3-formatted file: Audio system is normal. Explain to the customer that the CD player does not operate properly if MP3 or other format data are recorded the CD-R/RW. If the CD player does not play the MP3-formatted file: Replace the audio unit. (See CENTER PANEL UNIT REMOVAL/INSTALLATION .) (See CENTER PANEL UNIT DISASSEMBLY/ASSEMBLY .) (See AUDIO UNIT DISASSEMBLY/ASSEMBLY .) |
| No | Go to the next step. |
| 3 | Inspect the CD-R/RW write format. Is the write format within the specification (".mp3" is the correct file extension)? | Yes | Replace with a CD-R/RW disc using the ".mp3" file extension, then inspect the CD player operation. If the CD player plays the MP3-formatted file: Audio system is normal. Explain to the customer that the CD player does not operate properly if the correct file extension is not used. If the CD player does not play the MP3-formatted file: Replace the audio unit. (See CENTER PANEL UNIT REMOVAL/INSTALLATION .) (See CENTER PANEL UNIT DISASSEMBLY/ASSEMBLY .) (See AUDIO UNIT DISASSEMBLY/ASSEMBLY .) |
| No | Go to the next step. |
| 4 | Visually inspect the CD-R/RW. Is there any dirt or scratches on the CD-R/RW? | Yes | Clean the disc or replace it with an operational CD-R/RW. |
| No | Replace the audio unit. (See CENTER PANEL UNIT REMOVAL/INSTALLATION .) (See CENTER PANEL UNIT DISASSEMBLY/ASSEMBLY .) (See AUDIO UNIT DISASSEMBLY/ASSEMBLY .) |
CD PLAYER DOES NOT PLAY MP3-FORMATTED FILE DIAGNOSTIC PROCEDURE
| STEP | INSPECTION | ACTION |
|---|
| 1 | Visually inspect the CD-R/RW. Is there any dirt or scratches on the CD-R/RW? | Yes | Clean the disc or replace it with an operational CD-R/RW. |
| No | Go to the next step. |
| 2 | Inspect the ID tag version. Is the ID tag correct? | Yes | Go to the next step. |
| No | Write the CD-R/RW to the correct ID tag version. |
| 3 | Inspect the folder and audio file names. Are all the file names input correctly? | Yes | Go to the next step. |
| No | Use a CD-R/RW with folder and audio file names that are input correctly. |
| 4 | Inspect the folder and audio file names on the CD-R/RW. Is the encode correct? NOTE: Unreadable characters may be displayed if the incorrect encode is used. | Yes | Go to the next step. |
| No | Use the correct encode. |
| 5 | Inspect the number of characters for the folder and audio file names. Is the number of characters within the maximum number of characters? | Yes | Replace the audio unit. (See CENTER PANEL UNIT REMOVAL/INSTALLATION .) (See CENTER PANEL UNIT DISASSEMBLY/ASSEMBLY .) (See AUDIO UNIT DISASSEMBLY/ASSEMBLY .) |
| No | Input the folder and audio file names within the maximum number of characters. |
| NOTE |
|---|
| Unreadable characters may be displayed if the incorrect encode is used. |
MP3-FORMATTED FILE FOLDER SELECTION INOPERATIVE/TRACK SEARCH INOPERATIVE DIAGNOSTIC PROCEDURE
| STEP | INSPECTION | ACTION |
|---|
| 1 | Visually inspect the CD-R/RW. Is there any dirt or scratch on the CD/R/RW? | Yes | Clean the disc or replace it with an operational CD-R/RW. |
| No | Go to the next step. |
| 2 | Inspect the LCD. Is the CD (other than MP3 compatible) displayed on the LCD? | Yes | Go to the next step. |
| No | Go to the NO.9 NO AUDIO SYSTEM ILLUMINATION (Entire audio system). |
| 3 | Inspect the ID tag version. Is the ID tag correct? | Yes | Go to the next step. |
| No | Write the CD-R/RW to the correct ID tag version. |
| 4 | Is the title text input into the CD-R/RW? | Yes | Go to the next step. |
| No | Input the title text. NOTE: Do not input the title text using two-byte characters. |
| 5 | Inspect the folder and audio file names on the CD-R/RW. Is the encode correct? | Yes | Go to the next step. |
| No | Use the correct encode. |
| 6 | Inspect the number of characters for the folder and audio file name. Is the number of characters within the maximum number of characters? | Yes | Replace the audio unit. (See CENTER PANEL UNIT REMOVAL/INSTALLATION .) (See CENTER PANEL UNIT DISASSEMBLY/ASSEMBLY .) (See AUDIO UNIT DISASSEMBLY/ASSEMBLY .) |
| No | Input the folder and audio file names within the maximum number of characters. |
| NOTE |
|---|
| Do not input the title text using two-byte characters. |
CD PLAYER DOES NOT INDICATE MP3 TITLE TEXT DIAGNOSTIC PROCEDURE
| STEP | INSPECTION | ACTION |
|---|
| 1 | Replace with an audio-CD known to be operational. Does the CD player play the audio-CD properly? | Yes | Go to the next step. |
| No | Replace the audio unit. (See CENTER PANEL UNIT REMOVAL/INSTALLATION .) (See CENTER PANEL UNIT DISASSEMBLY/ASSEMBLY .) (See AUDIO UNIT DISASSEMBLY/ASSEMBLY .) |
| 2 | Inspect the write format of the recorded data on the CD-R/RW. Is the write format correct? | Yes | Go to the next step. |
| No | Write the CD-R/RW to the correct specification. |
| 3 | Inspect the recorded data in the CD-R/RW. Is any data other than the audio data recorded on the CD-R/RW? | Yes | Replace with a CD-R/RW known to be operational (record audio data only), then inspect the CD player operation. If the CD-R/RW plays: Audio system is normal. Explain to the customer that the CD player does not operate properly if audio data or other data are recorded on the CD-R/RW. If the CD-R/RW does not play: Replace the audio unit. (See CENTER PANEL UNIT REMOVAL/INSTALLATION .) (See CENTER PANEL UNIT DISASSEMBLY/ASSEMBLY .) (See AUDIO UNIT DISASSEMBLY/ASSEMBLY .) |
| No | Go to the next step. |
| 4 | Visually inspect the CD-R/RW. Is there any dirt or scratches on the CD-R/RW? | Yes | Clean the disc or replace it with an operational CD-R/RW. |
| No | Replace the audio unit. (See CENTER PANEL UNIT REMOVAL/INSTALLATION .) (See CENTER PANEL UNIT DISASSEMBLY/ASSEMBLY .) (See AUDIO UNIT DISASSEMBLY/ASSEMBLY .) |
CD PLAYER DOES NOT PLAY AUDIO DATA (CDDA) DIAGNOSTIC PROCEDURE
| STEP | INSPECTION | ACTION |
|---|
| 1 | Replace with a CD known to be operational. Does the CD player change the track? | Yes | Explain to the customer that the defective CD or a non-conventional disc cannot be used. |
| No | Go to the next step. |
| 2 | Inspect the center panel installation. Does the CD player change the track number on the display when pressing the track up or down button? | Yes | Replace the audio unit. (See CENTER PANEL UNIT REMOVAL/INSTALLATION .) (See CENTER PANEL UNIT DISASSEMBLY/ASSEMBLY .) (See AUDIO UNIT DISASSEMBLY/ASSEMBLY .) |
| No | Go to the CONFIRMATION STEP 1: AUDIO PANEL SWITCH CONFIRMATION . Replace the center panel if necessary. |
TRACK CHANGE INOPERATIVE DIAGNOSTIC PROCEDURE
| No. | Symptom | Possible DTC |
|---|
| 1 | No radio reception (AM/FM)/No or low volume | 09: Er20, 09: Er22 |
| 2 | Noise from radio (AM only) | 09: Er22 |
| 3 | Noise from radio (FM only) | 09: Er22 |
| 4 | Cannot tune (SEEK does not stop) | 09: Er20, 09: Er22 |
| 5 | Cannot preset (preset function does not operate) | 21: Er19 |
| 6 | Reception frequency of radio slips | 09: Er22 |
Scheme 54
Scheme 54: Quick Diagnostic Table (Radio)
CONFIRMATION STEP 1: RECEPTION CONDITION SYMPTOM (EXAMPLE)
| Symptom | Antenna signal condition | Source |
|---|
| Only a buzzing sound from the speakers | There is no radio station broadcasting. Signals from the antenna to the audio unit are not transmitted. | Electric noise caused by the operation of internal circuit from the audio unit itself Atmospheric noise |
| A buzzing or crunching sound and normal sound produced at the same time from the speakers | Though signals are transmitted from the antenna to the audio unit, electrical noise from other sources is greater. | Electrical noise caused by the operation of electrical components on the vehicle Electrical noise from high tension wires, transformer substation (factory), electrical feeder line (street car), or motorcycle. |
| A thumping sound and normal sound produced at the same time from the speakers (FM only) | Noise occurs due to radio wave environment at specific places (e.g. in valleys between buildings). Noise varies when the vehicle itself or surrounding vehicles move. (FM only) | Interference between direct and reflected waves of FM signals causes noise (Multipass noise). |
RECEPTION CONDITION SYMPTOMS
CONFIRMATION STEP 2: ANTENNA SYSTEM SYMPTOM (EXAMPLE)
| Possible cause | AM reception condition | FM reception condition |
|---|
| Antenna feeder axis, open circuit Antenna feeder plug not attached | NG: No reception | YES: Reception possible. (Sensitivity decreases, but reception is possible under strong electric field.) |
| Antenna feeder axis (+) to ground (-), open circuit | NG: No reception | NG: No reception |
| Antenna feeder and antenna, poor ground | YES: Reception possible (Noise may occur) | YES: Reception possible (Sensitivity decreases, but reception is possible under strong electric field.) |
| Antenna feeder, jack and plug poor connection | NG: No reception (Depending on connection conditions) | YES: Reception possible (Depending on connection conditions) |
Scheme 55
Scheme 55: CONFIRMATION STEP 3: ANTENNA SYSTEM SIMPLE INSPECTION
- Because the antenna system is equipped with a capacitor, the continuity cannot be checked. Therefore proceed to the following simple inspection. Turn the AM radio on. Tune to the frequency with no radio broadcast and listen for a buzzing sound. Turn a hand-held light on and shake it around the antenna rod (around 10-20 mm) NOTE: Use a fluorescent light type for the inspection. Accurate diagnosis cannot be done with a different type of light. If a whirring sound from the speaker synchronized to the work light movement is confirmed, the antenna system is normal.
| STEP | INSPECTION | ACTION |
|---|
| 1 | Turn the audio unit on. Is the LCD indicated correctly? | Yes | Go to Step 3. |
| No | Go to the next step. |
| 2 | Measure the voltage at B+ and ACC terminals. Is the voltage normal? Specification With ignition switch ON: 11.5 V or more At idling: 12.5 V or more | Yes | Go to the next step. |
| No | Follow the diagnostic procedure for symptom No. 2 (Entire audio system). |
| 3 | Set the volume between 10 and 15. Is a buzzing sound or voice confirmed? | Yes | Go to the next step. |
| No | Follow the diagnostic procedure for symptom No. 3 (Entire audio system) or No. 4 (Entire audio system). |
| 4 | Tune to a local broadcasting station and check the reception condition. Is the reception normal? | Yes | Go to the next step. |
| No | Go to Step 6. |
| 5 | Push the PRESET buttons and check the preset conditions. Have preset stations been stored? | Yes | The system is normal. |
| No | Preset broadcasting stations. |
| 6 | Is aftermarket electronic equipment (two-way radio, navigation system, mobile phone, etc.) installed? NOTE: A TV antenna located close to the audio antenna can be the cause of noise. Relocate the TV antenna. | Yes | Go to the next step. |
| No | Go to Step 8. |
| 7 | Remove aftermarket electronic equipment. Turn the audio unit on and check the reception condition. Does reception improve? | Yes | The system is normal. (Explain to the customer that aftermarket electronic equipment is the cause of the noise) |
| No | Go to the next step. |
| 8 | Refer to CONFIRMATION STEP 3: ANTENNA SYSTEM SIMPLE INSPECTION , and inspect the antenna system. Is a whirring sound present? | Yes | Replace the audio unit. (See CENTER PANEL UNIT REMOVAL/INSTALLATION .) (See CENTER PANEL UNIT DISASSEMBLY/ASSEMBLY .) (See AUDIO UNIT DISASSEMBLY/ASSEMBLY .) |
| No | Go to the next step. |
| 9 | Inspect the antenna feeder plug connection condition. Is the connection normal? | Yes | Go to the next step. |
| No | Insert the antenna feeder plug securely. |
| 10 | Turn the ignition switch to the LOCK position. Measure the continuity between the antenna feeder axis and ground. Is there any continuity? | Yes | Replace the antenna feeder. (See ANTENNA FEEDER LOCATION .) |
| No | Go to the next step. |
| 11 | Measure the voltage at audio unit terminal H (24-pin) to verify the antenna amplifier power supply. Is the voltage B+? | Yes | Go to the next step. |
| No | Replace the audio unit. (See CENTER PANEL UNIT REMOVAL/INSTALLATION .) (See CENTER PANEL UNIT DISASSEMBLY/ASSEMBLY .) (See AUDIO UNIT DISASSEMBLY/ASSEMBLY .) |
| 12 | Turn the ignition switch to the LOCK position. Inspect the continuity between audio unit terminal H (24-pin) and manual antenna terminal A. Is there any continuity? | Yes | Go to the next step. |
| No | Repair or replace the wiring harness between the audio unit and the manual antenna (antenna amplifier power supply system), then verify the reception condition. If the reception has improved, troubleshooting is completed. If the reception has not improved, go to the next step. |
| 13 | Compare the reception with another audio unit on the same model (model/unit) under the same problem conditions. Is the reception equivalent to the customer's unit? NOTE: Due to the following differences, you may sense a difference in reception efficiency. (Vehicle factor) Antenna installation location, height, feeder wiring routing, optional electrical equipment (Audio unit factor) High-tone setting: Decreases effective volume range when signals become weak. (Noise is easy to be conspicuous) Noise restraint setting: Widens effective volume range when signals become weak. (Noise is not conspicuous.) | Yes | The system is normal. (It is caused by electronic jamming from outside, or inferior broadcasting station signal condition.) |
| No | Replace audio unit. (See CENTER PANEL UNIT REMOVAL/INSTALLATION .) (See CENTER PANEL UNIT DISASSEMBLY/ASSEMBLY .) (See AUDIO UNIT DISASSEMBLY/ASSEMBLY .) |
| NOTE |
|---|
| A TV antenna located close to the audio antenna can be the cause of noise. Relocate the TV antenna. |
| NOTE |
|---|
| Due to the following differences, you may sense a difference in reception efficiency. (Vehicle factor) Antenna installation location, height, feeder wiring routing, optional electrical equipment (Audio unit factor) High-tone setting: Decreases effective volume range when signals become weak. (Noise is easy to be conspicuous) Noise restraint setting: Widens effective volume range when signals become weak. (Noise is not conspicuous.) |
RADIO RECEPTION (AM/FM)/NO OR LOW VOLUME DIAGNOSTIC PROCEDURE
| STEP | INSPECTION | ACTION |
|---|
| 1 | Tune to a local broadcasting station and check the reception condition. Is the reception normal? | Yes | Tune to the correct frequency for the broadcasting station. If not preset, preset it. |
| No | Go to the next step. |
| 2 | Inspect the antenna rod condition. Is the antenna rod installed? | Yes | Go to the next step. |
| No | Advise the customer to install the antenna rod when the radio is used. (It the antenna rod is not a standard part, replace it.) |
| 3 | Is aftermarket electronic equipment (two-way radio, navigation system, mobile phone, etc.) installed? NOTE: A TV antenna located close to the audio antenna can be the cause of noise. Relocate the TV antenna. | Yes | Go to the next step. |
| No | Go to Step 5. |
| 4 | Remove aftermarket electronic equipment. Turn the audio unit on and check the reception condition. Does reception improve? | Yes | The system is normal. (Explain to the customer that aftermarket electronic equipment is the cause of the noise) |
| No | Go to the next step. |
| 5 | Measure the battery voltage. Is battery voltage normal? Standard With ignition switch ON: 11.5 V or more At idling: 12.5 V or more NOTE: Verify that the battery cables are connected to the terminals securely. | Yes | Go to the next step. |
| No | Charge the battery. Inspect the charging system, and repair or replace if necessary. |
| 6 | Does the noise occur only when the vehicle electrical system (e.g. fuel pump) operates? NOTE: Identify the suspect electrical component by disconnecting fuses, turning switches on & off, or disconnecting and connecting connectors. It is easier to use the simulation function on the WDS. | Yes | Go to the next step. |
| No | Go to Step 8. |
| 7 | Verify the condition of the power supply and ground of the electric components, and the noise prevention capacitor. Is noise present after the inspection? NOTE: Inspect the following: Power supply to electrical component for voltage drop (compare with battery voltage) Resistance between ground of electrical component and body. (Should be close to 0 ohm) Installation condition of noise prevention capacitor for fuel pump. | Yes | Go to the next step. |
| No | Troubleshooting completed. NOTE: The audio unit supplies 12 V battery power to the antenna amplifier for AM radio reception in the radio mode. The audio unit cannot receive AM signals without the 12 V battery power to the antenna amplifier. If the AM signals strengthen, the audio unit may receive the signals with noise. |
| 8 | Inspect the antenna feeder plug connection condition. Is the connection normal? | Yes | Go to the next step. |
| No | Insert the antenna feeder plug securely. |
| 9 | Turn the ignition switch to the LOCK position. Measure the continuity between the antenna the feeder axis and ground. Is there any continuity? | Yes | Replace antenna feeder. (See ANTENNA FEEDER LOCATION .) |
| No | Go to the next step. |
| 10 | Measure the voltage at audio unit terminal H (24-pin) to verify the antenna amplifier power supply. Is the voltage B+? | Yes | Go to the next step. |
| No | Replace the audio unit. (See CENTER PANEL UNIT REMOVAL/INSTALLATION .) (See CENTER PANEL UNIT DISASSEMBLY/ASSEMBLY .) (See AUDIO UNIT DISASSEMBLY/ASSEMBLY .) |
| 11 | Turn the ignition switch to the LOCK position. Inspect the continuity between audio unit terminal H (24-pin) and manual antenna terminal A. Is there any continuity? | Yes | Go to the next step. |
| No | Repair or replace the wiring harness between the audio unit and the manual antenna (antenna amplifier power supply system), then verify the reception condition. If the reception has improved, troubleshooting is completed. If the reception has not improved, go to the next step. |
| 12 | Compare the reception with another audio unit on same model (model/unit) under the same problem conditions. Is the reception equivalent to the customer's unit? NOTE: Due to the following differences, you may sense a difference in reception efficiency. (Vehicle factor) Antenna installation location, height, feeder wiring routing, optional electrical equipment (Audio unit factor) High-tone setting: Decreases effective volume range when signals become weak. (Noise is easy to be conspicuous) Noise restraint setting: Widens effective volume range when signals become weak. (Noise is not conspicuous.) | Yes | The system is normal (It is caused by electronic jamming from outside, or inferior broadcasting station signal condition). |
| No | Go to the next step. |
| 13 | Retighten the ground for the antenna and antenna amplifier. Retighten the antenna rod. Is the noise present after retightening? | Yes | Replace the audio unit. (See CENTER PANEL UNIT REMOVAL/INSTALLATION .) (See CENTER PANEL UNIT DISASSEMBLY/ASSEMBLY .) (See AUDIO UNIT DISASSEMBLY/ASSEMBLY .) |
| No | Troubleshooting completed. |
| NOTE |
|---|
| A TV antenna located close to the audio antenna can be the cause of noise. Relocate the TV antenna. |
| NOTE |
|---|
| Verify that the battery cables are connected to the terminals securely. |
| NOTE |
|---|
| Identify the suspect electrical component by disconnecting fuses, turning switches on & off, or disconnecting and connecting connectors. It is easier to use the simulation function on the WDS. |
| NOTE |
|---|
| Inspect the following: Power supply to electrical component for voltage drop (compare with battery voltage) Resistance between ground of electrical component and body. (Should be close to 0 ohm) Installation condition of noise prevention capacitor for fuel pump. |
| NOTE |
|---|
| The audio unit supplies 12 V battery power to the antenna amplifier for AM radio reception in the radio mode. The audio unit cannot receive AM signals without the 12 V battery power to the antenna amplifier. If the AM signals strengthen, the audio unit may receive the signals with noise. |
| NOTE |
|---|
| Due to the following differences, you may sense a difference in reception efficiency. (Vehicle factor) Antenna installation location, height, feeder wiring routing, optional electrical equipment (Audio unit factor) High-tone setting: Decreases effective volume range when signals become weak. (Noise is easy to be conspicuous) Noise restraint setting: Widens effective volume range when signals become weak. (Noise is not conspicuous.) |
NOISE FROM RADIO (AM ONLY) DIAGNOSTIC PROCEDURE
| STEP | INSPECTION | ACTION |
|---|
| 1 | Tune to a local broadcasting station and check the reception condition. Is the reception normal? | Yes | Tune to the correct frequency for the broadcasting station. If not preset, preset it. |
| No | Go to the next step. |
| 2 | Inspect the antenna rod condition. Is the antenna rod installed? | Yes | Go to the next step. |
| No | Advise the customer to install the antenna rod when the radio is used. (It the antenna rod is not a standard part, replace it.) |
| 3 | Is aftermarket electronic equipment (two-way radio, navigation system, mobile phone, etc.) installed? | Yes | Go to the next step. |
| No | Go to Step 5. |
| 4 | Remove aftermarket electronic equipment. Turn the audio unit on and check the reception condition. Does the reception improve? | Yes | The system is normal. (Explain to the customer that the aftermarket electronic equipment is the cause of the noise) |
| No | Go to the next step. |
| 5 | Measure the battery voltage. Is the battery voltage normal? Standard With ignition switch ON: 11.5 V or more At idling: 12.5 V or more NOTE: Verify that the battery cables are connected to the terminals securely. | Yes | Go to the next step. |
| No | Charge the battery. Inspect the charging system, and repair or replace if necessary. |
| 6 | Does the noise occur only when the vehicle's electrical system (e.g. fuel pump) operates? NOTE: Identify the suspect electrical component by disconnecting fuses, turning switches on & off, or disconnecting and connecting connectors. It is easier to use the simulation function on the WDS. | Yes | Go to the next step. |
| No | Go to Step 8. |
| 7 | Verify the condition of the power supply and ground of the electric components, and the noise prevention capacitor. Is the noise present after inspection? NOTE: Inspect the following: Power supply to electrical component for voltage drop (compare with battery voltage) Resistance between ground of electrical component and body. (Should be close to 0 ohm) Installation condition of noise prevention capacitor for fuel pump. | Yes | Go to the next step. |
| No | Troubleshooting completed. |
| 8 | Inspect the antenna feeder plug connection condition. Is the connection normal? | Yes | Go to the next step. |
| No | Insert the antenna feeder plug securely. |
| 9 | Turn the ignition switch to the LOCK position. Measure the continuity between the antenna feeder axis and ground. Is there any continuity? | Yes | Replace the antenna feeder. (See ANTENNA FEEDER LOCATION .) |
| No | Go to the next step. |
| 10 | Turn the ignition switch to the LOCK position. Inspect the continuity between audio unit terminal H (24-pin) and manual antenna terminal A. Is there any continuity? | Yes | Go to the next step. |
| No | Repair or replace the wiring harness between the audio unit and the manual antenna (antenna amplifier power supply system), then verify the reception condition. If the reception has improved, troubleshooting is completed. If the reception has not improved, go to the next step. |
| 11 | Measure the voltage at audio unit terminal H (24-pin) to verify the antenna amplifier power supply. Is the voltage B+? NOTE: 12 V is supplied from the audio unit to the antenna amplifier. (In radio mode) Even if the power supply voltage is not supplied, FM reception is possible, however, noise interference occurs more easily. | Yes | Go to the next step. |
| No | Replace the audio unit. (See CENTER PANEL UNIT REMOVAL/INSTALLATION .) (See CENTER PANEL UNIT DISASSEMBLY/ASSEMBLY .) (See AUDIO UNIT DISASSEMBLY/ASSEMBLY .) |
| 12 | Compare the reception with another audio unit on the same model (model/unit) under the same problem conditions. Is the reception equivalent to the customer's unit? | Yes | The system is normal (It is caused by electronic jamming from outside, or inferior broadcasting station signal condition). |
| No | Go to the next step. |
| 13 | Retighten the ground for the antenna installation part and antenna amplifier. Retighten the antenna rod. Is the noise present, after retightening? NOTE: When the antenna is not grounded properly, FM noise is likely to be noticed. | Yes | Replace the audio unit. (See CENTER PANEL UNIT REMOVAL/INSTALLATION .) (See CENTER PANEL UNIT DISASSEMBLY/ASSEMBLY .) (See AUDIO UNIT DISASSEMBLY/ASSEMBLY .) |
| No | Troubleshooting completed. |
| NOTE |
|---|
| Verify that the battery cables are connected to the terminals securely. |
| NOTE |
|---|
| Identify the suspect electrical component by disconnecting fuses, turning switches on & off, or disconnecting and connecting connectors. It is easier to use the simulation function on the WDS. |
| NOTE |
|---|
| Inspect the following: Power supply to electrical component for voltage drop (compare with battery voltage) Resistance between ground of electrical component and body. (Should be close to 0 ohm) Installation condition of noise prevention capacitor for fuel pump. |
| NOTE |
|---|
| 12 V is supplied from the audio unit to the antenna amplifier. (In radio mode) Even if the power supply voltage is not supplied, FM reception is possible, however, noise interference occurs more easily. |
| NOTE |
|---|
| When the antenna is not grounded properly, FM noise is likely to be noticed. |
NOISE FROM RADIO (FM ONLY) DIAGNOSTIC PROCEDURE
| STEP | INSPECTION | ACTION |
|---|
| 1 | Verify that the SEEK switch is normal when the switch is operated. Is it normal? | Yes | Go to the next step. |
| No | Perform confirmation Step 1: audio panel switch confirmation. Replace the center panel if necessary. |
| 2 | Inspect the indication on the information display. Does the frequency indication increase or decrease when the SEEK switch is operated? | Yes | Go to the next step. |
| No | Perform confirmation Step 1: audio panel switch confirmation. Replace the center panel if necessary. |
| 3 | Manually tune to a local broadcasting station and check the reception condition. Is the reception normal? | Yes | Go to Step 6. |
| No | Go to the next step. |
| 4 | Inspect the antenna feeder plug connection condition. Is the connection normal? | Yes | Go to the next step. |
| No | Insert the antenna feeder plug securely. |
| 5 | Turn the ignition switch to the LOCK position. Measure the continuity between the antenna feeder axis and ground. Is there any continuity? | Yes | Replace antenna feeder. (See ANTENNA FEEDER LOCATION .) |
| No | Go to the next step. |
| 6 | Turn the ignition switch to the LOCK position. Inspect the continuity between audio unit terminal H (24-pin) and manual antenna terminal A. Is there any continuity? | Yes | Go to the next step. |
| No | Repair or replace the wiring harness between the audio unit and the manual antenna (antenna amplifier power supply system), then verify the reception condition. If the reception has improved, troubleshooting is completed. If the reception has not improved, go to the next step. |
| 7 | Measure the voltage at audio unit terminal H (24-pin) to verify the antenna amplifier power supply. Is the voltage B+? | Yes | Go to the next step. |
| No | Replace the audio unit. (See CENTER PANEL UNIT REMOVAL/INSTALLATION .) (See CENTER PANEL UNIT DISASSEMBLY/ASSEMBLY .) (See AUDIO UNIT DISASSEMBLY/ASSEMBLY .) |
| 8 | Check if the number of broadcasting stations changes depending on time and place. Does it change? | Yes | The system is normal. (Explain to customer that SEEK sometimes does not stop depending on the signal reception condition.) NOTE: Signals tend to reach longer distances at night. (It is conspicuous in AM signals, several audio functions may stop due to foreign broadcasting station or noise.) Though the audio system restrains sensitivity of SEEK and SCAN functions at night, the audio system may select broadcasting stations other than those desired when signals are considerably strong. This function is linked to the parking light. When the parking light or the headlights are turned on, SEEK and SCAN may not function for weak signals. |
| No | Replace audio unit. (See CENTER PANEL UNIT REMOVAL/INSTALLATION .) (See CENTER PANEL UNIT DISASSEMBLY/ASSEMBLY .) (See AUDIO UNIT DISASSEMBLY/ASSEMBLY .) |
| NOTE |
|---|
| Signals tend to reach longer distances at night. (It is conspicuous in AM signals, several audio functions may stop due to foreign broadcasting station or noise.) Though the audio system restrains sensitivity of SEEK and SCAN functions at night, the audio system may select broadcasting stations other than those desired when signals are considerably strong. This function is linked to the parking light. When the parking light or the headlights are turned on, SEEK and SCAN may not function for weak signals. |
CANNOT TUNE (SEEK DOES NOT STOP) DIAGNOSTIC PROCEDURE
| STEP | INSPECTION | ACTION |
|---|
| 1 | Tune to the desired station and press channel preset button 1 for about 2 s to store it. Repeat the above for other stations using channel preset buttons 2 to 5. Press channel preset button 1 to 6 one by one. Are the stored stations present? | Yes | Go to the next step. |
| No | Go to Step 3. |
| 2 | Turn the ignition switch to the LOCK position, and then to ACC. Check if the preset stations are stored by pressing the preset buttons. Are the stations stored? | Yes | The system is normal. (Explain preset procedure to customer using Owner's Manual) |
| No | Replace the audio unit. (See CENTER PANEL UNIT REMOVAL/INSTALLATION .) (See CENTER PANEL UNIT DISASSEMBLY/ASSEMBLY .) (See AUDIO UNIT DISASSEMBLY/ASSEMBLY .) |
| 3 | Remove the center panel from the audio unit, and reinstall the center panel to the audio unit to check the connector connections. Turn the audio power switch on. Press the POWER button and simultaneously pull up the CLOCK switch at same time for approximately 1 s to enter the system to switch to the check mode. Press all buttons and check if a buzzing sound occur. Are all the buttons normal? | Yes | Replace the audio unit. (See CENTER PANEL UNIT REMOVAL/INSTALLATION .) (See CENTER PANEL UNIT DISASSEMBLY/ASSEMBLY .) (See AUDIO UNIT DISASSEMBLY/ASSEMBLY .) |
| No | Replace the center panel. (See CENTER PANEL UNIT REMOVAL/INSTALLATION .) (See CENTER PANEL UNIT DISASSEMBLY/ASSEMBLY .) |
CANNOT PRESET (PRESET FUNCTION DOES NOT OPERATE) DIAGNOSTIC PROCEDURE
| STEP | INSPECTION | ACTION |
|---|
| 1 | Operate the SEEK switch and check if the desired broadcasting station is tuned. Is it normal? | Yes | Go to Step 3. |
| No | Go to the next step. |
| 2 | Check if another broadcasting station is received at a certain location when the indication of the reception frequency remains. Are other station received? NOTE: While receiving a weak signal from one broadcasting station and approaching a broadcasting antenna which emits a strong signal, broadcasting from the strong signal is sometimes received. | Yes | Go to the next step. |
| No | Replace audio unit. (See CENTER PANEL UNIT REMOVAL/INSTALLATION .) (See CENTER PANEL UNIT DISASSEMBLY/ASSEMBLY .) (See AUDIO UNIT DISASSEMBLY/ASSEMBLY .) |
| 3 | Compare the reception with another audio unit on the same model (model/unit) under the same problem conditions. Is the reception equivalent to the customer's unit? | Yes | Troubleshooting completed (Audio unit is normal). |
| No | Replace the audio unit. (See CENTER PANEL UNIT REMOVAL/INSTALLATION .) (See CENTER PANEL UNIT DISASSEMBLY/ASSEMBLY .) (See AUDIO UNIT DISASSEMBLY/ASSEMBLY .) |
| NOTE |
|---|
| While receiving a weak signal from one broadcasting station and approaching a broadcasting antenna which emits a strong signal, broadcasting from the strong signal is sometimes received. |
RECEPTION FREQUENCY OF RADIO SLIPS DIAGNOSTIC PROCEDURE
Scheme 56
Scheme 56: Multipath Noise
- Signals from an FM transmitter are high frequency and similar to beams of light because they do not bend around corners, but they do reflect. Since FM signals can be reflected by obstructions, it is possible to receive both the direct signal and the reflected signal at the same time. This causes a slight delay in reception and may be heard as a broken sound or a distortion.
Scheme 57
Scheme 57: Flutter/Skip Noise
- Signals become weak in valleys between mountains, tall buildings, and other obstacles. When the vehicle passes through such an area, the reception conditions may change suddenly, resulting in annoying noise.
DTC TABLE [AUDIO SYSTEM]
| Screen display | Detection condition | Possible cause/inspection |
|---|
| DTC (When starting on-board diagnostic test function) |
| 03: Er01 | CD player cannot implement insert and eject commands. | CD player malfunction |
| 03: Er02 | Cannot change tracks. | CD player malfunction |
| 03: Er07 | CD reading error. | Defective CD (scratches or dirt) CD player malfunction |
| 03: Er10 | CD player does not operate. | Malfunction of connectors between base unit and CD player CD player malfunction |
| 05: Er01 | CD changer (external) cannot implement insert, eject, and disc change commands. | Defective CD (curved, broken or foreign material stuck/attached, etc.) CD changer (external) malfunction |
| 05: Er07 | CD reading error. | Defective CD (curved, broken or foreign material stuck/attached, etc.) CD changer (external) malfunction |
| 05: Er10 | CD changer (external) does not operate. | Defective CD (curved, broken or foreign material stuck/attached, etc.) CD changer (external) malfunction |
| 06: Er01 | CD changer cannot implement insert, eject, and disc change commands. | Defective CD (curved, broken or foreign material stuck/attached, etc.) CD changer malfunction |
| 06: Er02 | Cannot change tracks. | Defective CD (curved, broken or foreign material stuck/attached, etc.) CD changer malfunction |
| 06: Er07 | CD reading error. | Defective CD (curved, broken or foreign material stuck/attached, etc.) CD changer malfunction |
| 06: Er10 | CD changer does not operate. | Malfunction of connectors between base unit and CD changer CD changer malfunction |
| 07: Er01 | MD player cannot implement insert and eject commands. | MD player malfunction |
| 07: Er02 | Cannot change tracks. | MD player malfunction |
| 07: Er07 | MD reading error. | Defective MD |
| 07: Er08 | Blank unrecorded MD is inserted. | Defective MD |
| 07: Er10 | MD player does not operate. | Malfunction of connectors between base unit and MD player MD player malfunction |
| 09: Er20 | Audio system does not operate. | Voltage at base unit is low. |
| 09: Er21 | Broken sound/No sound | Inspect the audio system operation according to vehicle condition. |
| 09: Er22 | No radio reception | Inspect the radio operation according to vehicle condition. |
| 10: Er01 | MP3 applicable CD player cannot implement insert and eject commands. | MP3 applicable CD player malfunction |
| 10: Er02 | Cannot change tracks. | MP3 applicable CD player malfunction |
| 10: Er07 | MP3 CD reading error. | Incorrect format CD |
| 10: Er10 | MP3 applicable CD player does not operate. | Malfunction of connectors between base unit and MP3 applicable CD player MP3 applicable CD player malfunction |
| 11: Er01 | SSI bus communication error | Poor connection of the connectors Radio unit malfunction Sirius unit malfunction |
| 11: Er03 | Poor connection of antenna | Poor connection of antenna connector |
| 11: Er10 | Radio system does not operate. | Malfunction of connectors between base unit and Sirius unit Sirius unit malfunction |
| 21: Er17 | Incorrect combination (base unit and center panel) | Install the correct base unit or the center panel. |
| 21: Er18 |
| 21: Er19 | Communication error between base unit and center panel | Malfunction of connectors between base unit and center panel |
| 22: Er01 | MP3 applicable CD changer cannot implement insert, eject, and disc change commands. | Defective CD (curved, broken or foreign material stuck/attached, etc.) MP3 applicable CD changer malfunction |
| 22: Er02 | Cannot change tracks. | Defective CD (curved, broken or foreign material stuck/attached, etc.) MP3 applicable CD changer malfunction |
| 22: Er07 | CD reading error. | Defective CD (curved, broken or foreign material stuck/attached, etc.) MP3 applicable CD changer malfunction |
| 22: Er10 | MP3 applicable CD changer does not operate. | Malfunction of connectors between base unit and MP3 applicable CD changer MP3 applicable CD changer malfunction |
| No Err | No DTCs stored | No DTCs stored |
DTC REFERENCE TABLE (AUDIO SYSTEM)
