Speaker Circuit

AUDIO / VISUAL: AUDIO AND VISUAL SYSTEM: Speaker Circuit

Speaker Circuit

DESCRIPTION

The stereo component amplifier sends sound signals to the speakers.

WIRING DIAGRAM





INSPECTION PROCEDURE

PROCEDURE

1. CHECK SPEAKER

Result:





A -- PROCEED TO NEXT CIRCUIT INSPECTION SHOWN IN PROBLEM SYMPTOMS TABLE
B -- Continue to next step.
2. CHECK SPEAKER

Result:





E -- CHECK WIRE HARNESS (STEREO COMPONENT AMPLIFIER - REAR NO. 2 SPEAKER ASSEMBLY)
D -- CHECK WIRE HARNESS (STEREO COMPONENT AMPLIFIER - REAR SPEAKER)
C -- CHECK WIRE HARNESS (STEREO COMPONENT AMPLIFIER - STEREO COMPONENT SPEAKER)
B -- CHECK WIRE HARNESS (STEREO COMPONENT AMPLIFIER - FRONT NO. 2 SPEAKER)
A -- Continue to next step.
3. INSPECT FRONT NO. 1 SPEAKER ASSEMBLY
(a) Check that malfunction disappears when the speaker is replaced with a normal one.
OK:
Malfunction disappears.
HINT:
- Connect all connectors to speakers.
- If the right front or left front speaker is suspected to be malfunctioning, inspect by interchanging the right front and left front speaker.

NG -- REPLACE STEREO COMPONENT AMPLIFIER ASSEMBLY
OK -- END
4. CHECK WIRE HARNESS (STEREO COMPONENT AMPLIFIER - FRONT NO. 2 SPEAKER)




(a) Disconnect the S23 amplifier connector.
(b) Disconnect the D15 or D16 speaker connector.
(c) Measure the resistance of the wire harness side connectors.
Standard resistance:






NG -- REPAIR OR REPLACE HARNESS AND CONNECTOR
OK -- Continue to next step.
5. INSPECT FRONT NO. 2 SPEAKER ASSEMBLY




(a) Disconnect the D15 or D16 speaker connector.
(b) Measure the resistance of the speaker.
Standard resistance:






NG -- REPLACE FRONT NO. 2 SPEAKER ASSEMBLY
OK -- REPLACE STEREO COMPONENT AMPLIFIER ASSEMBLY
6. CHECK WIRE HARNESS (STEREO COMPONENT AMPLIFIER - STEREO COMPONENT SPEAKER)




(a) Disconnect the S22 amplifier connector.
(b) Disconnect the W4 or W5 speaker connector.
(c) Measure the resistance of the wire harness side connectors.
Standard resistance:






NG -- REPAIR OR REPLACE HARNESS AND CONNECTOR
OK -- Continue to next step.
7. INSPECT STEREO COMPONENT SPEAKER ASSEMBLY




(a) Disconnect the W4 or W5 speaker connector.
(b) Measure the resistance of the speaker.
Standard resistance:






NG -- REPLACE STEREO COMPONENT SPEAKER ASSEMBLY
OK -- REPLACE STEREO COMPONENT AMPLIFIER ASSEMBLY
8. CHECK WIRE HARNESS (STEREO COMPONENT AMPLIFIER - REAR SPEAKER)




(a) Disconnect the S22 amplifier connector.
(b) Disconnect the R10 or R11 speaker connector.
(c) Measure the resistance of the wire harness side connectors.
Standard resistance:






NG -- REPAIR OR REPLACE HARNESS AND CONNECTOR
OK -- Continue to next step.
9. INSPECT STEREO COMPONENT SPEAKER ASSEMBLY




(a) Disconnect the R10 or R11 speaker connector.
(b) Measure the resistance of the speaker.
Standard resistance:






NG -- REPLACE REAR SPEAKER ASSEMBLY
OK -- REPLACE STEREO COMPONENT AMPLIFIER ASSEMBLY
10. CHECK WIRE HARNESS (STEREO COMPONENT AMPLIFIER - REAR NO. 2 SPEAKER ASSEMBLY)




(a) Disconnect the S22 amplifier connector.
(b) Disconnect the W6 speaker connector.
(c) Measure the resistance of the wire harness side connectors.
Standard resistance:






NG -- REPAIR OR REPLACE HARNESS AND CONNECTOR
OK -- Continue to next step.
11. INSPECT REAR NO. 2 SPEAKER ASSEMBLY




(a) Disconnect the W6 speaker connector.
(b) Measure the resistance of the speaker.
Standard resistance:






NG -- REPLACE REAR NO. 2 SPEAKER ASSEMBLY
OK -- REPLACE STEREO COMPONENT AMPLIFIER ASSEMBLY