Speaker Circuit (Independent Amplifier)
AUDIO / VISUAL: AUDIO AND VISUAL SYSTEM (for CrewMax): Speaker Circuit (Independent Amplifier)
Speaker Circuit (Independent Amplifier)
DESCRIPTION
The stereo component amplifier sends sound signals to the speaker.
WIRING DIAGRAM
INSPECTION PROCEDURE
PROCEDURE
1. CHECK SPEAKER
(a) Check the malfunctioning speakers.
Result:
B -- CHECK SPEAKER
A -- Continue to next step.
2. CHECK SPEAKER
(a) Check the malfunctioning speakers.
Result:
D -- INSPECT FRONT NO. 4 SPEAKER
C -- INSPECT FRONT NO. 3 SPEAKER
B -- INSPECT FRONT NO. 2 SPEAKER
A -- Continue to next step.
3. INSPECT FRONT NO. 1 SPEAKER
(a) Disconnect the M8 and N10 speaker connectors.
(b) Measure the resistance according to the value(s) in the table below.
Standard resistance:
NG -- REPLACE FRONT NO. 1 SPEAKER
OK -- Continue to next step.
4. CHECK HARNESS AND CONNECTOR (STEREO COMPONENT AMPLIFIER - FRONT NO. 1 SPEAKER)
(a) Disconnect the M8 and N10 speaker connectors.
(b) Disconnect the K17 amplifier connector.
(c) Measure the resistance according to the value(s) in the table below.
Standard resistance:
for LH
for RH
NG -- REPAIR OR REPLACE HARNESS OR CONNECTOR
OK -- REPLACE STEREO COMPONENT AMPLIFIER
5. INSPECT FRONT NO. 2 SPEAKER
(a) Disconnect the K10 and K12 speaker connectors.
(b) Measure the resistance according to the value(s) in the table below.
Standard resistance:
for LH
for RH
NG -- REPLACE FRONT NO. 2 SPEAKER
OK -- Continue to next step.
6. CHECK HARNESS AND CONNECTOR (STEREO COMPONENT AMPLIFIER - FRONT NO. 2 SPEAKER)
(a) Disconnect the K16 amplifier connector.
(b) Disconnect the K10 and K12 speaker connectors.
(c) Measure the resistance according to the value(s) in the table below.
Standard resistance:
for LH
for RH
NG -- REPAIR OR REPLACE HARNESS OR CONNECTOR
OK -- REPLACE STEREO COMPONENT AMPLIFIER
7. INSPECT FRONT NO. 3 SPEAKER
(a) Disconnect the M1 and N1 speaker connectors.
(b) Measure the resistance according to the value(s) in the table below.
Standard resistance:
NG -- REPLACE FRONT NO. 3 SPEAKER
OK -- Continue to next step.
8. CHECK HARNESS AND CONNECTOR (FRONT NO. 2 SPEAKER - FRONT NO. 3 SPEAKER)
(a) Disconnect the M1, N1, K10 and K12 speaker connectors.
(b) Measure the resistance according to the value(s) in the table below.
Standard resistance:
for LH
for RH
NG -- REPAIR OR REPLACE HARNESS OR CONNECTOR
OK -- REPLACE FRONT NO. 2 SPEAKER
9. INSPECT FRONT NO. 4 SPEAKER
(a) Disconnect the K14 speaker connector.
(b) Measure the resistance according to the value(s) in the table below.
Standard resistance:
NG -- REPLACE FRONT NO. 4 SPEAKER
OK -- Continue to next step.
10. CHECK HARNESS AND CONNECTOR (STEREO COMPONENT AMPLIFIER - FRONT NO. 4 SPEAKER)
(a) Disconnect the K14 speaker connector.
(b) Disconnect the K17 amplifier connector.
(c) Measure the resistance according to the value(s) in the table below.
Standard resistance:
NG -- REPAIR OR REPLACE HARNESS OR CONNECTOR
OK -- REPLACE STEREO COMPONENT AMPLIFIER
11. CHECK SPEAKER
(a) Check the malfunctioning speakers.
Result:
C -- INSPECT BOX SPEAKER
B -- INSPECT REAR NO. 1 SPEAKER
A -- Continue to next step.
12. INSPECT REAR NO. 2 SPEAKER
(a) Disconnect the O2 and O8 speaker connectors.
(b) Measure the resistance according to the value(s) in the table below.
Standard resistance:
NG -- REPLACE REAR NO. 2 SPEAKER
OK -- Continue to next step.
13. CHECK HARNESS AND CONNECTOR (STEREO COMPONENT AMPLIFIER - REAR NO. 2 SPEAKER)
(a) Disconnect the K16 amplifier connector.
(b) Disconnect the O2 and O8 speaker connectors.
(c) Measure the resistance according to the value(s) in the table below.
Standard resistance:
for LH
for RH
NG -- REPAIR OR REPLACE HARNESS OR CONNECTOR
OK -- REPLACE STEREO COMPONENT AMPLIFIER
14. INSPECT REAR NO. 1 SPEAKER
(a) Disconnect the O1 and O7 speaker connectors.
(b) Measure the resistance according to the value(s) in the table below.
Standard resistance:
NG -- REPLACE REAR NO. 1 SPEAKER
OK -- Continue to next step.
15. CHECK HARNESS AND CONNECTOR (REAR NO. 1 SPEAKER - REAR NO. 2 SPEAKER)
(a) Disconnect the O1, O2, O7 and O8 speaker connectors.
(b) Measure the resistance according to the value(s) in the table below.
Standard resistance:
for LH
for RH
NG -- REPAIR OR REPLACE HARNESS OR CONNECTOR
OK -- REPLACE REAR NO. 2 SPEAKER
16. INSPECT BOX SPEAKER
(a) Disconnect the P14 speaker connector.
(b) Measure the resistance according to the value(s) in the table below.
Standard resistance:
NG -- REPLACE BOX SPEAKER
OK -- Continue to next step.
17. CHECK HARNESS AND CONNECTOR (STEREO COMPONENT AMPLIFIER - BOX SPEAKER)
(a) Disconnect the K17 amplifier connector.
(b) Disconnect the P14 speaker connector.
(c) Measure the resistance according to the value(s) in the table below.
Standard resistance:
NG -- REPAIR OR REPLACE HARNESS OR CONNECTOR
OK -- REPLACE STEREO COMPONENT AMPLIFIER