Base Audio

TWEETER (SEDAN)

Description

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


Diagnosis Procedure

Regarding Wiring Diagram information, Sedan.

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 M85 (A) and suspect tweeter connector (B).
2.Check continuity between audio unit harness connector M85 (A) and suspect tweeter harness connector (B).





3.Check continuity between audio unit harness connector M85 (A) and ground.





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

3. TWEETER SIGNAL CHECK






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





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