Speaker Circuit

SPEAKER CIRCUIT

CIRCUIT DESCRIPTION
The sound signal that has been amplified by the stereo component amplifier is sent to the speaker from the stereo component amplifier through this circuit.
As for the vehicle with a navigation system, the sound signal on the driver s side is sent to the navigation ECU from the stereo component amplifier.
If there is a short in this circuit, the stereo component amplifier assy detects it and stops output to the speaker. Thus sound can not be heard from the speaker even if there is no malfunction in the stereo component amplifier assy or speaker.

Built in type amplifier:
There are two circuits that detect a short circuit.
- When a short in the woofer speaker circuit is detected, sound output from only the woofer speaker circuit stops.
- When a short in the other circuits is detected, sound output from the circuits other than the woofer speaker circuit is stopped.

Separate type amplifier:
When a short in the speaker circuit is detected, all sound output is stopped.

Wiring Diagram:

Step 1:

Step 1 (Continued) - 2:

Step 3 - 6:

Step 7:

INSPECTION PROCEDURE