Diagnostic Procedure

STEP	INSPECTION		ACTION
1	Play the CD or Radio. Adjust the volume between "10" to "15". Is there sound?	Yes	The system is normal.
1		No	Go to the next step.
2	Switch the ignition OFF (LOCK). Remove the audio unit. Disconnect the audio connector (24-pin). Inspect the continuity between the audio unit wiring harness-side connector terminal and ground: For front door speaker/tweeter Terminal 1A (LH+)-GND Terminal 1C (LH-)-GND Terminal 1D (RH+)-GND Terminal 1F (RH-)-GND For rear door speaker Terminal 1S (LH+)-GND Terminal 1U (LH-)-GND Terminal 1V (RH+)-GND Terminal 1X (RH-)-GND Is there continuity?	Yes	Repair or replace the suspect wiring harness or speaker unit. NOTE: If there is a short circuit between the speaker harness or speaker lead wire and ground, the protector circuit inside the audio unit operates to cut the 2 sound.
2		No	Go to the next step.
3	Remove the speaker. Disconnect the speaker connector (2-pin). Inspect the continuity between the speaker wiring harness-side connector (2-pin) terminal and ground: For each speaker Terminal B-GND Terminal A-GND Is there continuity?	Yes	Replace the speaker. (See FRONT DOOR SPEAKER REMOVAL/INSTALLATION .) (See REAR SPEAKER REMOVAL/INSTALLATION .) (See TWEETER REMOVAL/INSTALLATION .)
3		No	Replace the audio unit. (See AUDIO UNIT REMOVAL/INSTALLATION .)