Base Audio

FRONT DOOR SPEAKER

Description

The audio unit sends audio signals to the front door speakers using the front door speaker circuits.


Diagnosis Procedure

Regarding Wiring Diagram information, Audio System.

1. CONNECTOR CHECK

Check the audio unit and speaker connectors for the following:
- Proper connection
- Damage
- Disconnected or loose terminals
Is the inspection result normal?
YES- GO TO 2.
NO- Repair the terminal and connector.

2. HARNESS CHECK






1.Disconnect audio unit connector M43 and suspect speaker connector.
2.Check continuity between audio unit harness connector M43 (A)
terminal and suspect speaker harness connector (B) terminal.





3.Check continuity between audio unit harness connector M43 (A)
terminal and ground.





Are continuity results as specified?
YES- GO TO 3
NO- Repair or replace harness or connector.

3. FRONT SPEAKER SIGNAL CHECK






1.Connect audio unit connector M43 and front speaker connector.
2.Turn ignition switch to ACC.
3.Push audio unit "POWER" switch.
4.Check the signal between audio unit harness connector M43
terminals with CONSULT or oscilloscope.





Is the audio signal voltage as specified?
YES- Replace speaker. Base Audio.
NO- Replace audio unit. Base Audio.