ON-BOARD DIAGNOSTIC SYSTEM FUNCTION

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Self-diagnostic Function

Malfunction detection function

•  The malfunction detection section detects malfunctions occurring in the 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 Service Section.

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 and numbers:

―  Supplier code (indicates manufacturer)

―  Part number (indicates malfunctioning part)

―  Error code (indicates malfunction description)

•  Refer to the Service Section for the display method.

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1	Supplier code
2	Part number
3	Error code

Supplier code	Supplier name
1	SANYO Automedia
2	Panasonic
3	Clarion
4	Pioneer

Parts number	Parts name
03	CD player
05	CD changer (external)
06	CD changer (upper module)
07	MD player (lower module)
09	Base unit
10	MP3 applicable CD player
21	Center panel
22	MP3 applicable CD changer

Error code	Malfunction description
01	Internal mechanism error
02	Servo mechanism error
03	Mechanism stuck
04	Tape malfunction
07	Disc reading error
08	Blank media
10	BUS 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
03: Er01	—	CD player system
03: Er02	CHECK CD	CD player system
03: Er07	CHECK CD	CD player system
03: Er10	—	CD player communication circuit system
05: Er01	—	CD changer system
05: Er07	CHECK CD	CD changer system
05: Er10	—	CD changer communication circuit system
06: Er01	—	CD changer system
06: Er02	CHECK CD	CD changer system
06: Er07	CHECK CD	CD changer system
06: Er10	—	CD changer communication circuit system
07: Er01	—	MD player system
07: Er02	CHECK MD	MD player system
07: Er07	CHECK MD	MD player system
07: Er08	—	MD system
07: Er10	—	MD player communication circuit system
09: Er20	—	Power supply circuit to base unit
09: Er21	—	•  Speaker or speaker circuit •  Base unit (peripheral circuit for power amplifier)
09: Er22	—	Base unit (peripheral circuit for tuner)
10: Er01	—	MP3 applicable CD player system
10: Er02	CHECK CD	MP3 applicable CD player system
10: Er07	CHECK CD	MP3 applicable CD player system
10: Er10	—	MP3 applicable CD player communication circuit system
21: Er17	—	Center panel system
21: Er18	—	Center panel system
21: Er19	—	Center panel system
22: Er01	—	CD system
22: Er02	—	CD system
22: Er07	—	CD system
22: Er10	—	MP3 applicable CD changer system
no Er	—	No DTCs stored

Diagnostic Assist Function

Information display

•  The diagnostic assist function illuminates all characters in the information display to check for truncated or faint characters.

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Button and switch

•  The diagnostic assist function sounds the buzzer when the buttons and switches are pressed to check their operating condition.

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Speaker

With Bose

•  The diagnostic assist function outputs sound to all the speakers to determine the operating condition of the speakers and wiring harnesses between the base unit and each speaker.

Without Bose

•  The diagnostic assist function outputs sound to the speakers in the following order to determine the operating condition of the speakers and wiring harnesses between the base unit and each speaker.

1.  Left door speaker and tweeter

2.  Right door speaker and tweeter

3.  Left rear speaker^*1

4.  Right rear speaker^*1

Radio

•  The diagnostic assist function displays the radio reception condition in 10 levels (0-9) to assist in determining the condition of the antenna, antenna feeders, and base unit (tuner).

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Audio amplifier (external)

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

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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, base unit, and wiring harness between the base unit and antenna amplifier.

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