Speaker Circuit
AUDIO / VIDEO: AUDIO AND VISUAL SYSTEM (w/o Multi-display): Speaker Circuit
- Speaker Circuit
DESCRIPTION
The stereo component amplifier assembly sends sound signals to the speaker.
WIRING DIAGRAM
INSPECTION PROCEDURE
PROCEDURE
1. CHECK SPEAKER
(a) Check which speakers are malfunctioning.
Result
B -- INSPECT REAR SPEAKER ASSEMBLY
C -- REPLACE STEREO COMPONENT AMPLIFIER ASSEMBLY Removal
A -- Continue to next step.
2. CHECK FRONT SIDE SPEAKER
(a) Check which speakers are malfunctioning.
Result
B -- REPLACE FRONT NO. 3 SPEAKER ASSEMBLY
C -- INSPECT FRONT NO. 2 SPEAKER ASSEMBLY
D -- INSPECT FRONT NO. 4 SPEAKER ASSEMBLY
A -- Continue to next step.
3. INSPECT FRONT NO. 1 SPEAKER ASSEMBLY
(a) Disconnect the H9*1 and/or H12*2 front No. 1 speaker assembly connector.
*1: for RH
*2: for LH
(b) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
NG -- REPLACE FRONT NO. 1 SPEAKER ASSEMBLY Removal
OK -- Continue to next step.
4. CHECK HARNESS AND CONNECTOR (FRONT NO. 1 SPEAKER - FRONT NO. 3 SPEAKER)
*1: for RH
*2: for LH
(a) Disconnect the H9*1 and/or H12*2 front No. 1 speaker assembly connector.
(b) Disconnect the H20*1 and/or H21*2 front No. 3 speaker assembly connector.
(c) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
for RH
for LH
NG -- REPAIR OR REPLACE HARNESS OR CONNECTOR
OK -- Continue to next step.
5. INSPECT FRONT NO. 3 SPEAKER ASSEMBLY
(a) Disconnect the H20*1 and/or H21*2 front No. 3 speaker assembly connector.
*1: for RH
*2: for LH
(b) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
for RH
for LH
Text in Illustration
NG -- REPLACE FRONT NO. 3 SPEAKER ASSEMBLY Removal
OK -- REPLACE STEREO COMPONENT AMPLIFIER ASSEMBLY Removal
6. REPLACE FRONT NO. 3 SPEAKER ASSEMBLY
(a) Temporarily replace the front No. 3 speaker assembly with a new or normally functioning one Removal
OK:
Malfunction disappears.
Result
B -- CHECK HARNESS AND CONNECTOR (STEREO COMPONENT AMPLIFIER - FRONT NO. 3 SPEAKER)
C -- CHECK HARNESS AND CONNECTOR (TELEMATICS TRANSCEIVER - FRONT NO. 3 SPEAKER RH)
A -- END (FRONT NO. 3 SPEAKER ASSEMBLY IS DEFECTIVE)
7. CHECK HARNESS AND CONNECTOR (STEREO COMPONENT AMPLIFIER - FRONT NO. 3 SPEAKER)
(a) Disconnect the H7 stereo component amplifier assembly connector.
(b) Disconnect the H20*1 and/or H21*2 front No. 3 speaker assembly connector.
*1: for RH
*2: for LH
(c) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
for RH
for LH
NG -- REPAIR OR REPLACE HARNESS OR CONNECTOR
OK -- REPLACE STEREO COMPONENT AMPLIFIER ASSEMBLY Removal
8. CHECK HARNESS AND CONNECTOR (TELEMATICS TRANSCEIVER - FRONT NO. 3 SPEAKER RH)
(a) Disconnect the G56 telematics transceiver connector.
(b) Disconnect the H20 front No. 3 speaker assembly RH connector.
(c) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
NG -- REPAIR OR REPLACE HARNESS OR CONNECTOR
OK -- Continue to next step.
9. CHECK HARNESS AND CONNECTOR (TELEMATICS TRANSCEIVER - STEREO COMPONENT AMPLIFIER)
(a) Disconnect the G56 telematics transceiver connector.
(b) Disconnect the H7 stereo component amplifier assembly connector.
(c) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
NG -- REPAIR OR REPLACE HARNESS OR CONNECTOR
OK -- Continue to next step.
10. INSPECT TELEMATICS TRANSCEIVER
(a) Remove the telematics transceiver Removal.
(b) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
NG -- REPLACE TELEMATICS TRANSCEIVER Removal
OK -- REPLACE STEREO COMPONENT AMPLIFIER ASSEMBLY Removal
11. INSPECT FRONT NO. 2 SPEAKER ASSEMBLY
(a) Disconnect the J3*1 and/or K2*2 front No. 2 speaker assembly connector.
*1: for RH
*2: for LH
(b) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
NG -- REPLACE FRONT NO. 2 SPEAKER ASSEMBLY Removal
OK -- Continue to next step.
12. CHECK HARNESS AND CONNECTOR (STEREO COMPONENT AMPLIFIER - FRONT NO. 2 SPEAKER)
(a) Disconnect the H11 stereo component amplifier assembly connector.
(b) Disconnect the J3*1 and/or K2*2 front No. 2 speaker assembly connector.
*1: for RH
*2: for LH
(c) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
for RH
for LH
NG -- REPAIR OR REPLACE HARNESS OR CONNECTOR
OK -- REPLACE STEREO COMPONENT AMPLIFIER ASSEMBLY Removal
13. INSPECT FRONT NO. 4 SPEAKER ASSEMBLY
(a) Disconnect the H13 front No. 4 speaker assembly connector.
(b) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
NG -- REPLACE FRONT NO. 4 SPEAKER ASSEMBLY Removal
OK -- Continue to next step.
14. CHECK HARNESS AND CONNECTOR (STEREO COMPONENT AMPLIFIER - FRONT NO. 4 SPEAKER)
(a) Disconnect the H7 stereo component amplifier assembly connector.
(b) Disconnect the H13 front No. 4 speaker assembly 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 ASSEMBLY Removal
15. INSPECT REAR SPEAKER ASSEMBLY
(a) Disconnect the L1*1 and/or M1*2 rear speaker assembly connector.
*1: for RH
*2: for LH
(b) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
NG -- REPLACE REAR SPEAKER ASSEMBLY Removal
OK -- Continue to next step.
16. CHECK HARNESS AND CONNECTOR (STEREO COMPONENT AMPLIFIER - REAR SPEAKER)
(a) Disconnect the H11 stereo component amplifier assembly connector.
(b) Disconnect the L1*1 and/or M1*2 rear speaker assembly connector.
*1: for RH
*2: for LH
(c) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
for RH
for LH
NG -- REPAIR OR REPLACE HARNESS OR CONNECTOR
OK -- REPLACE STEREO COMPONENT AMPLIFIER ASSEMBLY Removal