Toyota Tundra (2015 year). Manual — part 977
AUDIO / VISUAL: AUDIO AND VISUAL SYSTEM: Speaker Circuit;...
INSPECTION PROCEDURE
PROCEDURE
1.
CHECK VEHICLE CONDITION
(a) Check the vehicle condition.
Result
RESULT
PROCEED TO
for 4 Speakers
A
for 6 speakers
B
for 7 or 9 Speakers
C
AUDIO / VISUAL: AUDIO AND VISUAL SYSTEM: Speaker Circuit;...
A
B
GO TO STEP 5
C
GO TO STEP 9
2.
CHECK HARNESS AND CONNECTOR (SPEAKER CIRCUIT)
*1: for RH Side
*2: for LH Side
(a) Disconnect the J137 radio and display receiver assembly connector.
(b) Disconnect the M8*1 and/or N10*2 front No. 1 speaker assembly connector.
(c) Disconnect the J147*1 and/or J149*2 front No. 2 speaker assembly connector.
(d) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
for RH side
for LH side
TESTER CONNECTION
CONDITION
SPECIFIED CONDITION
J137-1 (FR+) - J147-3 (TWR+)
Always
Below 1 Ω
J137-5 (FR-) - J147-2 (TWR-)
Always
Below 1 Ω
J147-1 (+) - M8-1
Always
Below 1 Ω
J147-4 (-) - M8-2
Always
Below 1 Ω
J137-1 (FR+) - Body ground
Always
10 kΩ or higher
J137-5 (FR-) - Body ground
Always
10 kΩ or higher
J147-1 (+) - Body ground
Always
10 kΩ or higher
J147-4 (-) - Body ground
Always
10 kΩ or higher
TESTER CONNECTION
CONDITION
SPECIFIED CONDITION
J137-2 (FL+) - J149-3 (TWL+)
Always
Below 1 Ω
J137-6 (FL-) - J149-2 (TWL-)
Always
Below 1 Ω
J149-1 (+) - N10-1
Always
Below 1 Ω
J149-4 (-) - N10-2
Always
Below 1 Ω
J137-2 (FL+) - Body ground
Always
10 kΩ or higher
J137-6 (FL-) - Body ground
Always
10 kΩ or higher
J149-1 (+) - Body ground
Always
10 kΩ or higher
AUDIO / VISUAL: AUDIO AND VISUAL SYSTEM: Speaker Circuit;...
OK
OK
TESTER CONNECTION
CONDITION
SPECIFIED CONDITION
J149-4 (-) - Body ground
Always
10 kΩ or higher
NG
REPAIR OR REPLACE HARNESS OR CONNECTOR
3.
INSPECT FRONT NO. 1 SPEAKER ASSEMBLY
(a) Remove the front No. 1 speaker assembly
.
(b) Inspect the front No. 1 speaker assembly
.
NG
REPLACE FRONT NO. 1 SPEAKER ASSEMBLY
4.
CHECK FRONT NO. 2 SPEAKER ASSEMBLY
(a) Replace the front No. 2 speaker assembly with a known good one
.
(b) Check that the malfunction disappears.
NOTICE:
Connect all the connectors to the front No. 2 speaker assemblies that were disconnected.
Connect all the connectors to the front No. 2 speaker assemblies that were disconnected.
Perform the above inspection on both LH and RH sides.
OK:
Malfunction disappears.
Result
RESULT
PROCEED TO
OK
A
NG (for Column Shift Type)
B
NG (for Floor Shift Type)
C
B
REPLACE RADIO AND DISPLAY RECEIVER ASSEMBLY
C
REPLACE RADIO AND DISPLAY RECEIVER ASSEMBLY
AUDIO / VISUAL: AUDIO AND VISUAL SYSTEM: Speaker Circuit;...
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