DESCRIPTION
for TMC Made
If there is a short in a speaker circuit, the navigation receiver assembly detects it and stops output to the speakers.
Thus sound cannot be heard from the speakers even if there is no malfunction in the navigation receiver assembly or speakers.
for TMMK Made
If there is a short in a speaker circuit, the stereo component amplifier assembly detects it and stops output to the speakers.
Thus sound cannot be heard from the speakers even if there is no malfunction in the stereo component amplifier assembly or speakers.
WIRING DIAGRAM
for TMC Made
for TMMK Made
INSPECTION PROCEDURE
PROCEDURE
CHECK MODEL
Choose the model to be inspected.
| Result | ||||||
|---|---|---|---|---|---|---|
|
| B |
|
CHECK SPEAKER (OPERATION CHECK) Click here |
| A |
|
CHECK SPEAKER (OPERATION CHECK)
Enter the "System Check Mode" screen.
Refer to Check Speaker in Operation Check Click here.
Perform the operation check above and determine the speaker that is not operating.
| Result | ||||||
|---|---|---|---|---|---|---|
|
Tech Tips
If sound cannot be heard from any speaker, inspect all of them.
| B |
|
CHECK HARNESS AND CONNECTOR (NAVIGATION RECEIVER ASSEMBLY - REAR SPEAKER ASSEMBLY) Click here |
| A |
|
CHECK HARNESS AND CONNECTOR (NAVIGATION RECEIVER ASSEMBLY - FRONT NO. 2 SPEAKER ASSEMBLY - FRONT NO. 1 SPEAKER ASSEMBLY)
Disconnect the I64 navigation receiver assembly connector.
Disconnect the I83 and I1 front No. 2 speaker assembly connectors.
Disconnect the J5 and K5 front No. 1 speaker assembly connectors.
Measure the resistance according to the value(s) in the table below.
| Standard Resistance | |||||||||||||||||||||||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
| NG |
|
REPAIR OR REPLACE HARNESS OR CONNECTOR |
| OK |
|
INSPECT FRONT NO. 2 SPEAKER ASSEMBLY
Remove the front No. 2 speaker assembly Click here.
Inspect the front No. 2 speaker assembly Click here.
Check that the malfunction disappears when a new or known good front No. 2 speaker assembly is installed Click here.
| OK |
|---|
| Malfunction disappears. |
| NG |
|
INSPECT FRONT NO. 1 SPEAKER ASSEMBLY Click here |
| OK |
|
END
INSPECT FRONT NO. 1 SPEAKER ASSEMBLY
Remove the front No. 1 speaker assembly Click here.
Inspect the front No. 1 speaker assembly Click here.
| NG |
|
REPLACE FRONT NO. 1 SPEAKER ASSEMBLY Click here |
| OK |
|
PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE Click here
CHECK HARNESS AND CONNECTOR (NAVIGATION RECEIVER ASSEMBLY - REAR SPEAKER ASSEMBLY)
Disconnect the I65 navigation receiver assembly connector.
Disconnect the O18 and O21 rear speaker assembly connectors.
Measure the resistance according to the value(s) in the table below.
| Standard Resistance | |||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
| NG |
|
REPAIR OR REPLACE HARNESS OR CONNECTOR |
| OK |
|
INSPECT REAR SPEAKER ASSEMBLY
Remove the rear speaker assembly Click here.
Inspect the rear speaker assembly Click here.
| NG |
|
REPLACE REAR SPEAKER ASSEMBLY Click here |
| OK |
|
PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE Click here
CHECK SPEAKER (OPERATION CHECK)
Enter the "System Check Mode" screen.
Refer to Check Speaker in Operation Check Click here.
Perform the operation check above and determine the speaker that is not operating.
| Result | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
Tech Tips
If sound cannot be heard from any speaker, inspect all of them.
| B |
|
CHECK HARNESS AND CONNECTOR (STEREO COMPONENT AMPLIFIER ASSEMBLY - FRONT NO. 2 SPEAKER ASSEMBLY) Click here |
| C |
|
CHECK HARNESS AND CONNECTOR (STEREO COMPONENT AMPLIFIER ASSEMBLY - FRONT NO. 3 SPEAKER ASSEMBLY) Click here |
| D |
|
CHECK HARNESS AND CONNECTOR (STEREO COMPONENT AMPLIFIER ASSEMBLY - REAR NO. 2 SPEAKER ASSEMBLY) Click here |
| E |
|
CHECK HARNESS AND CONNECTOR (STEREO COMPONENT AMPLIFIER ASSEMBLY - REAR SPEAKER ASSEMBLY) Click here |
| A |
|
CHECK HARNESS AND CONNECTOR (STEREO COMPONENT AMPLIFIER ASSEMBLY - FRONT NO. 1 SPEAKER ASSEMBLY)
Disconnect the I68 stereo component amplifier assembly connector.
Disconnect the J5 and K5 front No. 1 speaker assembly connectors.
Measure the resistance according to the value(s) in the table below.
| Standard Resistance | |||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
| NG |
|
REPAIR OR REPLACE HARNESS OR CONNECTOR |
| OK |
|
INSPECT FRONT NO. 1 SPEAKER ASSEMBLY
Remove the front No. 1 speaker assembly Click here.
Inspect the front No. 1 speaker assembly Click here
| NG |
|
REPLACE FRONT NO. 1 SPEAKER ASSEMBLY Click here |
| OK |
|
PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE Click here
CHECK HARNESS AND CONNECTOR (STEREO COMPONENT AMPLIFIER ASSEMBLY - FRONT NO. 2 SPEAKER ASSEMBLY)
Disconnect the I68 stereo component amplifier assembly connector.
Disconnect the I84 and I2 front No. 2 speaker assembly connectors.
Measure the resistance according to the value(s) in the table below.
| Standard Resistance | |||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
| NG |
|
REPAIR OR REPLACE HARNESS OR CONNECTOR |
| OK |
|
INSPECT FRONT NO. 2 SPEAKER ASSEMBLY
Remove the front No. 2 speaker assembly Click here.
Inspect the front No. 2 speaker assembly Click here.
Check that the malfunction disappears when a new or known good front No. 2 speaker assembly is installed Click here.
| OK |
|---|
| Malfunction disappears. |
| NG |
|
PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE Click here |
| OK |
|
END
CHECK HARNESS AND CONNECTOR (STEREO COMPONENT AMPLIFIER ASSEMBLY - FRONT NO. 3 SPEAKER ASSEMBLY)
Disconnect the I68 stereo component amplifier assembly connector.
Disconnect the I60 front No. 3 speaker assembly connector.
Measure the resistance according to the value(s) in the table below.
| Standard Resistance | |||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
| NG |
|
REPAIR OR REPLACE HARNESS OR CONNECTOR |
| OK |
|
INSPECT FRONT NO. 3 SPEAKER ASSEMBLY
Remove the front No. 3 speaker assembly Click here.
Inspect the front No. 3 speaker assembly Click here.
| NG |
|
REPLACE FRONT NO. 3 SPEAKER ASSEMBLY Click here |
| OK |
|
PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE Click here
CHECK HARNESS AND CONNECTOR (STEREO COMPONENT AMPLIFIER ASSEMBLY - REAR NO. 2 SPEAKER ASSEMBLY)
Disconnect the I68 stereo component amplifier assembly connector.
Disconnect the O19 and O20 rear No. 2 speaker assembly connectors.
Measure the resistance according to the value(s) in the table below.
| Standard Resistance | |||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
| NG |
|
REPAIR OR REPLACE HARNESS OR CONNECTOR |
| OK |
|
INSPECT REAR NO. 2 SPEAKER ASSEMBLY
Remove the rear No. 2 speaker assembly Click here.
Inspect the rear No. 2 speaker assembly Click here.
| NG |
|
REPLACE REAR NO. 2 SPEAKER ASSEMBLY Click here |
| OK |
|
PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE Click here
CHECK HARNESS AND CONNECTOR (STEREO COMPONENT AMPLIFIER ASSEMBLY - REAR SPEAKER ASSEMBLY)
Disconnect the I68 stereo component amplifier assembly connector.
Disconnect the O22 rear speaker assembly connector.
Measure the resistance according to the value(s) in the table below.
| Standard Resistance | |||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
| NG |
|
REPAIR OR REPLACE HARNESS OR CONNECTOR |
| OK |
|
INSPECT REAR SPEAKER ASSEMBLY
Remove the rear speaker assembly Click here.
Inspect the rear speaker assembly Click here.
| NG |
|
REPLACE REAR SPEAKER ASSEMBLY Click here |
| OK |
|
PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE Click here