AUDIO AND VISUAL SYSTEM (w/o Multi-display) PROBLEM SYMPTOMS TABLE

Tech Tips


  • Use the table below to help determine the cause of problem symptoms. If multiple suspected areas are listed, the potential causes of the symptoms are listed in order of probability in the "Suspected Area" column of the table. Check each symptom by checking the suspected areas in the order they are listed. Replace parts as necessary.

  • Inspect the fuses and relays related to this system before inspecting the suspected areas below.

Panel Switch Function
Symptom Suspected Area See page
Pressing power switch does not turn on system. Proceed to "Radio Receiver Power Source Circuit"

Click here

Radio receiver assembly

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Panel switch does not function. Radio receiver assembly

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Radio receiver does not illuminate at night. Proceed to "Illumination Circuit"

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Radio receiver assembly

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CD slot illumination on radio receiver illuminates when turning lights on during daytime or daylight hours. Proceed to "Dimmer Signal Circuit"

Click here

General Audio Function
Symptom Suspected Area See page
No sound can be heard from speakers. (Audio is mute.) Proceed to "No Sound can be Heard from Speakers"

Click here

Proceed to "Mute Signal Circuit between Radio Receiver and Stereo Component Amplifier"

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Proceed to "Sound Signal Circuit between Radio Receiver and Stereo Component Amplifier"

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Proceed to "Speaker Circuit"

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Stereo component amplifier assembly

Click here

Radio receiver assembly

Click here

Sound quality is bad in all modes. (Volume is too low.) Proceed to "Poor Sound Quality in All Modes (Low Volume)"

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Proceed to "Mute Signal Circuit between Radio Receiver and Stereo Component Amplifier"

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Proceed to "Sound Signal Circuit between Radio Receiver and Stereo Component Amplifier"

Click here

Proceed to "Speaker Circuit"

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Stereo component amplifier assembly

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Radio receiver assembly

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ASL does not function. Proceed to "Vehicle Speed Signal Circuit between Stereo Component Amplifier and Combination Meter"

Click here

Abnormal noise occurs. Proceed to "Noise Occurs"

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Stereo component amplifier assembly

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Radio receiver assembly

Click here

FM or AM Radio Function
Symptom Suspected Area See page
Radio broadcast cannot be received or poor reception. Proceed to "Radio Broadcast cannot be Received or Poor Reception"

Click here

CD Player Function
Symptom Suspected Area See page
CD cannot be inserted/played or CD is ejected right after insertion. Proceed to "CD cannot be Inserted / Played or CD is Ejected Right After Insertion"

Click here

CD cannot be ejected. Proceed to "CD cannot be Ejected"

Click here

Sound quality is bad only when CD is played. (Volume is too low.) Proceed to "Sound Quality is Bad Only when CD is Played (Volume is Too Low)"

Click here

CD sound skips. Proceed to "CD Sound Skips"

Click here

AUX (Stereo Jack) Function
Symptom Suspected Area See page
External device sound cannot be heard or sound quality is bad. (Stereo jack is used.) Proceed to "Sound Signal Circuit between Radio Receiver and Stereo Jack Adapter"

Click here

No. 1 stereo jack adapter assembly

Click here

Radio receiver assembly

Click here

Stereo jack adapter light does not illuminate. Proceed to "Stereo jack adapter light does not illuminate"

Click here

Steering Pad Switch Function
Symptom Suspected Area See page
Audio system cannot be operated with steering pad switch. Proceed to "Steering Pad Switch Circuit"

Click here

Radio receiver assembly

Click here

Illumination for steering pad switch does not come on with tail switch on. Proceed to "Illumination Circuit"

Click here

Radio receiver assembly

Click here

"Bluetooth" Hands-free Function
Symptom Suspected Area See page
"Bluetooth" is inoperative. Proceed to "Microphone Circuit between Microphone and Radio Receiver"

Click here

Radio receiver assembly

Click here

Cellular phone registration failure, phonebook transfer failure. Proceed to "Cellular Phone Registration Failure, Phonebook Transfer Failure"

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Cellular phone cannot make outgoing/incoming calls. Proceed to "Cellular Phone cannot Make Outgoing/Incoming Calls"

Click here

Radio receiver assembly

Click here

Other caller's voice cannot be heard, is too quiet, or distorted. Proceed to "The Other Caller's Voice cannot be Heard, is too Quiet, or Distorted"

Click here

Radio receiver assembly

Click here

Other caller cannot hear your voice, or your voice is too quiet or distorted. Proceed to "The Other Caller cannot Hear Your Voice, or Your Voice is too Quiet or Distorted"

Click here

Proceed to "Microphone Circuit between Microphone and Radio Receiver"

Click here

Radio receiver assembly

Click here

"Bluetooth" can be connected while driving. Proceed to "Vehicle Speed Signal Circuit between Radio Receiver and Combination Meter"

Click here

"Bluetooth" Audio Function
Symptom Suspected Area See page
Portable player cannot be registered. Proceed to "Portable Player cannot be Registered"

Click here

Radio receiver assembly

Click here

Portable player cannot be connected manually/automatically. Proceed to "Portable Player cannot be Registered"

Click here

Proceed to "Portable Player cannot be Connected Manually/Automatically"

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Radio receiver assembly

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Cellular phone with portable audio function cannot be recognized as "Bluetooth" audio device even when connected using "Bluetooth". Proceed to "Portable Player cannot be Registered"

Click here

Proceed to "Portable Player cannot be Connected Manually/Automatically"

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Radio receiver assembly

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Sound of portable player cannot be heard from speakers, or sound is low. Proceed to "Sound of Portable Player cannot be Heard from Speakers or Sound is Low"

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Radio receiver assembly

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Portable player does not play even after "Bluetooth" audio mode is selected. Proceed to "Does not Play even after Bluetooth Audio Mode is Selected"

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Radio receiver assembly

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Portable player does not play. Proceed to "Does not Play even after Bluetooth Audio Mode is Selected"

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Radio receiver assembly

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Track information such as track number, track name and elapsed play time is not displayed. Proceed to "Portable Player cannot be Operated Using In-vehicle Device or Track Information is not Displayed on In-vehicle Device"

Click here

Radio receiver assembly

Click here

"Bluetooth" signal condition is not displayed. Proceed to "Portable Player cannot be Operated Using In-vehicle Device or Track Information is not Displayed on In-vehicle Device"

Click here

Radio receiver assembly

Click here

Portable player cannot pause, select file, fast forward, fast rewind, play at random or scan. Proceed to "Portable Player cannot be Operated Using In-vehicle Device or Track Information is not Displayed on In-vehicle Device"

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Radio receiver assembly

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Noise occurs or sound skips when portable player plays. Proceed to "Noise Occurs or Sound Skips when Portable Player Plays"

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Radio receiver assembly

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Registered device cannot be deleted. Proceed to "Registered Device cannot be Deleted"

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Radio receiver assembly

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USB Audio System Function
Symptom Suspected Area See page
USB audio system sound cannot be heard or sound quality is bad. (USB connector is used.) Proceed to "Sound Signal Circuit between Radio Receiver and Stereo Jack Adapter"

Click here

No. 1 stereo jack adapter assembly

Click here

Radio receiver assembly

Click here

USB Device or "iPod" is not recognized. Proceed to "USB Audio System Recognition/Play Error"

Click here

No. 1 stereo jack adapter assembly

Click here

Radio receiver assembly

Click here

Track information such as track, artist and album names are not displayed. Proceed to "USB Audio System Recognition/Play Error"

Click here

No. 1 stereo jack adapter assembly

Click here

Radio receiver assembly

Click here

USB device or "iPod" is recognized but cannot play or play in a sorted order. Proceed to "USB Audio System Recognition/Play Error"

Click here

No. 1 stereo jack adapter assembly

Click here

Radio receiver assembly

Click here

"iPod" battery cannot be charged. Proceed to "USB Audio System Recognition/Play Error"

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No. 1 stereo jack adapter assembly

Click here

Radio receiver assembly

Click here

Stereo jack adapter light does not illuminate. Proceed to "Stereo jack adapter light does not illuminate"

Click here