Part 2
AUDIO / VIDEO: AUDIO AND VISUAL SYSTEM: Speaker Circuit
INSPECTION PROCEDURE (Continued)
20. CHECK HARNESS AND CONNECTOR (STEREO COMPONENT AMPLIFIER - REAR SPEAKER SET)
(a) Disconnect the F3 and F31 amplifier connectors.
(b) Disconnect the J17 and J15 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 ASSEMBLY
21. INSPECT NO. 1 WOOFER BOX SPEAKER ASSEMBLY
(a) Disconnect the L4 speaker connector.
(b) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
NG -- REPLACE NO. 1 WOOFER BOX SPEAKER ASSEMBLY
OK -- Continue to next step.
22. CHECK HARNESS AND CONNECTOR (STEREO COMPONENT AMPLIFIER - NO. 1 WOOFER BOX SPEAKER)
(a) Disconnect the F3 amplifier connector.
(b) Disconnect the L4 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 ASSEMBLY
23. INSPECT REAR HEADER SPEAKER ASSEMBLY
(a) Disconnect the S9 and S8 speaker connectors.
(b) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
NG -- REPLACE REAR HEADER SPEAKER ASSEMBLY
OK -- Continue to next step.
24. CHECK HARNESS AND CONNECTOR (STEREO COMPONENT AMPLIFIER - REAR HEADER SPEAKER)
(a) Disconnect the F4 amplifier connector.
(b) Disconnect the S9 and S8 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 ASSEMBLY
25. CHECK SPEAKER
(a) Check the malfunctioning speakers.
Result
E -- INSPECT REAR SPEAKER SET
D -- INSPECT FRONT NO. 3 SPEAKER ASSEMBLY
C -- INSPECT FRONT NO. 1 SPEAKER ASSEMBLY
B -- INSPECT FRONT NO. 2 SPEAKER ASSEMBLY
A -- Continue to next step.
26. INSPECT FRONT NO. 4 SPEAKER ASSEMBLY
(a) Disconnect the F6 speaker connector.
(b) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
NG -- REPLACE FRONT NO. 4 SPEAKER ASSEMBLY
OK -- Continue to next step.
27. CHECK HARNESS AND CONNECTOR (STEREO COMPONENT AMPLIFIER - FRONT NO. 4 SPEAKER)
(a) Disconnect the F6 speaker connector.
(b) Disconnect the F3 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 ASSEMBLY
28. INSPECT FRONT NO. 2 SPEAKER ASSEMBLY
(a) Disconnect the F8 and F7 speaker connectors.
(b) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
NG -- REPLACE FRONT NO. 2 SPEAKER ASSEMBLY
OK -- Continue to next step.
29. CHECK DEFECTIVE SPEAKER AND VEHICLE EQUIPMENT
(a) Check which side of the vehicle the defective speaker is on. Also, check if the vehicle is equipped with the LEXUS Link System.
Result
B -- CHECK HARNESS AND CONNECTOR (STEREO COMPONENT AMPLIFIER - FRONT NO. 2 SPEAKER)
A -- Continue to next step.
30. CHECK HARNESS AND CONNECTOR (TELEPHONE ECU - STEREO COMPONENT AMPLIFIER AND FRONT NO. 2 SPEAKER)
(a) Disconnect the F31 amplifier connector.
(b) Disconnect the F7 speaker connector.
(c) Disconnect the P2 ECU connector.
(d) 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.
31. CHECK STEREO COMPONENT AMPLIFIER ASSEMBLY
(a) Replace the stereo component amplifier with a normal one and check that audio can be heard from the front RH side speaker Removal.
OK:
Audio can be heard.
NG -- REPLACE TELEPHONE ECU ASSEMBLY
OK -- END (STEREO COMPONENT AMPLIFIER IS DEFECTIVE)
32. CHECK HARNESS AND CONNECTOR (STEREO COMPONENT AMPLIFIER - FRONT NO. 2 SPEAKER)
(a) Disconnect the F31 amplifier connector.
(b) Disconnect the F8 and F7 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 ASSEMBLY
33. INSPECT FRONT NO. 1 SPEAKER ASSEMBLY
(a) Disconnect the I10 and I1 speaker connectors.
(b) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
NG -- REPLACE FRONT NO. 1 SPEAKER ASSEMBLY
OK -- Continue to next step.
34. CHECK HARNESS AND CONNECTOR (STEREO COMPONENT AMPLIFIER - FRONT NO. 1 SPEAKER)
(a) Disconnect the I10 and I1 speaker connectors.
(b) Disconnect the F31 and F3 amplifier 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 ASSEMBLY
35. INSPECT FRONT NO. 3 SPEAKER ASSEMBLY
(a) Disconnect the F14 and F13 speaker connectors.
(b) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
NG -- REPLACE FRONT NO. 3 SPEAKER ASSEMBLY
OK -- Continue to next step.
36. INSPECT FRONT NO. 2 SPEAKER ASSEMBLY
(a) Disconnect the F8 and F7 speaker connectors.
(b) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
NG -- REPLACE FRONT NO. 2 SPEAKER ASSEMBLY
OK -- REPAIR OR REPLACE HARNESS OR CONNECTOR (FRONT NO. 2 SPEAKER - FRONT NO. 3 SPEAKER)
37. INSPECT REAR SPEAKER SET
(a) Disconnect the J17 and J15 speaker connectors.
(b) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
NG -- REPLACE REAR SPEAKER SET
OK -- Continue to next step.
38. CHECK HARNESS AND CONNECTOR (STEREO COMPONENT AMPLIFIER - REAR SPEAKER SET)
(a) Disconnect the F31 amplifier connector.
(b) Disconnect the J17 and J15 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 ASSEMBLY