ON-BOARD DIAGNOSTIC SYSTEM FUNCTION [AUDIO SYSTEM]

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• The on-board diagnostic system has a self-diagnostic function and diagnostic assist function to help technicians locate malfunctions.

Self-diagnostic Function

Malfunction detection function

  • The malfunction detection function detects malfunctions occurring in the audio system.

Memory function

  • The memory function detects a malfunction, changes it to a DTC, and stores it in the memory. The memory can store a maximum of three DTCs. If another malfunction is detected when three DTCs are already stored, the memory function clears the oldest DTC and stores the new one.

  • Once a DTC is stored, it can only be cleared by the designated procedure; not by turning the ignition switch to the LOCK position or disconnecting the negative battery cable. The procedure is mentioned in the Workshop Manual.

Display function

  • When the self-diagnostic function is activated, the information display displays the DTC stored in the memory.

  • The DTC consists of the following codes:
    ― Supplier code (indicates manufacturer)
    ― Device code (indicates malfunctioning part)
    ― Error code (indicates malfunction description)

  • Refer to the Workshop Manual for the display method.

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Supplier code | Supplier name
--- | ---
01 | SANYO Automedia
02 | Panasonic
03 | Clarion
04 | Pioneer
05 | VISTEON

Device code | Parts name
--- | ---
09 | Audio unit
10 | MP3/WMA (windows media audio) applicable CD player
16 | CAN system
21 | Center panel
22 | MP3/WMA (windows media audio) applicable CD changer

Error code | Malfunction description
--- | ---
01 | Internal mechanism error
02 | Servo mechanism error
07 | Disc reading error
12 | CAN line (communication line) error
17 | Incorrect combination
18 | Incorrect combination
19 | Communication line
20 | Insufficient power supply
21 | Amplifier related circuit
22 | Tuner error

Screen display | Malfunction location
--- | ---
DTC | Output signal
09: Er20 | — | Power supply circuit to audio unit
09: Er21 | — | • Speaker or speaker circuit • Audio unit (peripheral circuit for power amplifier)
09: Er22 | — | Audio unit (peripheral circuit for tuner)
10: Er01 | — | MP3/WMA (windows media audio) applicable CD player system
10: Er02 | CHECK CD | MP3/WMA (windows media audio) applicable CD player system
10: Er07 | CHECK CD | MP3/WMA (windows media audio) applicable CD player system
16: Er12 | — | CAN system communication error
21: Er17 | — | Communication error between center panel and audio unit
21: Er18 | — | Communication error between center panel and audio unit
21: Er19 | — | Communication error between center panel and audio unit
22: Er01 | — | MP3/WMA (windows media audio) applicable CD changer system
22: Er02 | CHECK CD | MP3/WMA (windows media audio) applicable CD changer system
22: Er07 | CHECK CD | MP3/WMA (windows media audio) applicable CD changer system
no Err | — | No DTCs stored

Diagnostic Assist Function

• The diagnostic assist function displays the operating condition of the following functions (components) and forces them to operate in order to examine whether they are malfunctioning or not.
• For the start procedure of each mode, refer to the Workshop Manual.

Display

  • Illuminates all the characters on the display and checks if they are not truncated or faint.

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Switch

  • Activates a buzzer sound, switch name or dial rotation direction when a switch is operated and examines each of the switches.

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Speaker

  • Verifies that the speakers output sound in the following order and examines the speakers and wiring harness between the audio unit and speaker.
  Without Bose®
    ― Door speaker (LH) and tweeter (LH)
    ― Door speaker (RH) and tweeter (RH)
    ― Rear speaker (RH) (with 6 speaker type)
    ― Rear speaker (LH) (with 6 speaker type)
  With Bose®
    ― Door speaker (LH) and door upper speaker (LH) and center speaker
    ― Door speaker (RH) and door upper speaker (RH) and center speaker
    ― Rear speaker

Radio

  • The diagnostic assist function displays the radio reception condition in 11 levels (0—10) to assist in determining the condition of the antenna, antenna feeders, and audio unit (tuner).

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Antenna control condition

  • The diagnostic assist function displays the output state of the antenna amplifier power supply to determine the condition of the antenna amplifier, audio unit, and wiring harness between the audio unit and antenna amplifier.

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Audio Amplifier control condition

  • The diagnostic assist function displays the output state of the audio amplifier operating signal to determine the condition of the audio amplifier, audio unit, and wiring harness between the audio unit and audio amplifier.

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Center panel

  • Displays the destination code of the center panel on the display and examines the destination of the center panel.

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Audio amplifier specification

  • Displays the audio amplifier specification on the display screen to verify its specification.

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Audio amplifier (with Bose®) identify inspection

  • Inspection of the audio amplifier can be performed by operating the following speakers.
  With standard seat
    ― Rear speaker
  With leather seat
    ― Door speaker