ON-BOARD DIAGNOSTIC SYSTEM FUNCTION [AUDIO SYSTEM]

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Self-diagnostic Function

Malfunction detection function

•  The malfunction detection function 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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Supplier code	Supplier name
1	SANYO Automedia
2	Panasonic
3	Clarion
4	Pioneer

Parts number	Parts name
09	Base unit
10	MP3 applicable CD player
16	CAN communication line
21	Audio cover
22	MP3 applicable CD changer
23	Audio amplifier (Bose®)

Error code	Malfunction description
01	Internal mechanism error
02	Servo mechanism error
03	Mechanism stuck
07	Disc reading error
10	BUS line (communication line) error
11	CAN line (communication line) error
12	CAN line (communication line) error
19	Communication error between panels
20	Insufficient power supply
21	Amplifier related circuit
22	Tuner error
23	Abnormally high temperature and excess-voltage

Screen display		Malfunction location
DTC	Output signal
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
16: Er12	—	CAN system
21: Er19	—	Audio cover system
22: Er01	—	CD system
22: Er02	—	CD system
22: Er07	—	CD system
22: Er10	—	MP3 applicable CD changer system
23: Er03	—	audio amplifier (vehicle with Bose®)
23: Er11	—	audio amplifier (vehicle with Bose®)
23: Er23	—	audio amplifier (vehicle with Bose®)
no Err	—	No DTCs stored

Diagnostic Assist Function

Switch

•  The diagnostic assist function sounds the buzzer when the 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 front door speaker

2.  Right front door speaker

3.  Right rear speaker

4.  Left rear speaker

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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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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