Toyota Tundra Service Manual: Speaker Circuit

Toyota Tundra Service Manual / Audio, Visual, Telematics / Navigation / Multi Info Display / Navigation System / Speaker Circuit

DESCRIPTION

The navigation receiver assembly sends sound signals to the speakers.

WIRING DIAGRAM

PROCEDURE

1.	CHECK VEHICLE CONDITION

(a) Check the vehicle condition.

Result

Result	Proceed to
for 7 or 9 Speakers	A
for 12 Speakers	B

GO TO STEP 9

2.	CHECK HARNESS AND CONNECTOR (SPEAKER CIRCUIT)

*1: for RH Side
*2: for LH Side
*3: for 9 Speakers

(a) Disconnect the J133 and J134 navigation receiver assembly connector.

(b) Disconnect the M8*1 and/or N10*2 front No. 1 speaker assembly connector.

(d) Disconnect the J150 front No. 4 speaker assembly connector.

(e) Disconnect the O1*1 and/or O7*2 rear No. 1 speaker assembly connector.

(f) Disconnect the O2*1 and/or O8*2 rear No. 2 speaker assembly connector.*3

(g) Disconnect the J144 and J145 stereo component amplifier assembly connectors.

(h) Measure the resistance according to the value(s) in the table below.

Standard Resistance:

Tester Connection	Condition	Specified Condition
M8-1 - J144-1 (R+)	Always	Below 1 Ω
M8-2 - J144-5 (R-)	Always	Below 1 Ω
N10-1 - J144-2 (L+)	Always	Below 1 Ω
N10-2 - J144-6 (L-)	Always	Below 1 Ω
O1-1 - J145-4 (WFR+)	Always	Below 1 Ω
O1-2 - J145-11 (WFR-)	Always	Below 1 Ω
O7-1 - J145-5 (WFL+)	Always	Below 1 Ω
O7-2 - J145-12 (WFL-)	Always	Below 1 Ω
O2-3 - J145-9 (RR+)*3	Always	Below 1 Ω
O2-2 - J145-10 (RR-)*3	Always	Below 1 Ω
J145-9 (RR+) - J134-1 (RR+)	Always	Below 1 Ω
J145-10 (RR-) - J134-3 (RR-)	Always	Below 1 Ω
O8-3 - J145-3 (RL+)*3	Always	Below 1 Ω
O8-2 - J145-8 (RL-)*3	Always	Below 1 Ω
J145-3 (RL+) - J134-2 (RL+)	Always	Below 1 Ω
J145-8 (RL-) - J134-6 (RL-)	Always	Below 1 Ω
J145-2 (FR+) - J133-1 (FR+)	Always	Below 1 Ω
J145-7 (FR-) - J133-5 (FR-)	Always	Below 1 Ω
J145-1 (FL+) - J133-2 (FL+)	Always	Below 1 Ω
J145-6 (FL-) - J133-6 (FL-)	Always	Below 1 Ω
J145-2 (FR+) - J147-3 (TWR+)	Always	Below 1 Ω
J145-7 (FR-) - J147-2 (TWR-)	Always	Below 1 Ω
J145-1 (FL+) - J149-3 (TWL+)	Always	Below 1 Ω
J145-6 (FL-) - J149-2 (TWL-)	Always	Below 1 Ω
J147-1 (+) - J150-1 (+)	Always	Below 1 Ω
J147-4 (-) - J150-4 (RI1-)	Always	Below 1 Ω
J150-2 (-) - J149-4 (-)	Always	Below 1 Ω
J150-3 (RI1+) - J149-1 (+)	Always	Below 1 Ω
J144-1 (R+) - Body ground	Always	10 kΩ or higher
J144-5 (R-) - Body ground	Always	10 kΩ or higher
J144-2 (L+) - Body ground	Always	10 kΩ or higher
J144-6 (L-) - Body ground	Always	10 kΩ or higher
J145-4 (WFR+) - Body ground	Always	10 kΩ or higher
J145-11 (WFR-) - Body ground	Always	10 kΩ or higher
J145-5 (WFL+) - Body ground	Always	10 kΩ or higher
J145-12 (WFL-) - Body ground	Always	10 kΩ or higher
J145-9 (RR+) - Body ground	Always	10 kΩ or higher
J145-10 (RR-) - Body ground	Always	10 kΩ or higher
J145-3 (RL+) - Body ground	Always	10 kΩ or higher
J145-8 (RL-) - Body ground	Always	10 kΩ or higher
J145-2 (FR+) - Body ground	Always	10 kΩ or higher
J145-7 (FR-) - Body ground	Always	10 kΩ or higher
J145-1 (FL+) - Body ground	Always	10 kΩ or higher
J145-6 (FL-) - 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
J147-3 (TWR+) - Body ground	Always	10 kΩ or higher
J147-2 (TWR-) - Body ground	Always	10 kΩ or higher
J150-2 (-) - Body ground	Always	10 kΩ or higher
J150-3 (RI1+) - Body ground	Always	10 kΩ or higher
J149-3 (TWL+) - Body ground	Always	10 kΩ or higher
J149-2 (TWL-) - Body ground	Always	10 kΩ or higher

REPAIR OR REPLACE HARNESS OR CONNECTOR

3.	INSPECT FRONT NO. 1 SPEAKER ASSEMBLY

(a) Remove the front No. 1 speaker assembly.

for Double Cab: See page
for CrewMax: See page

(b) Inspect the front No. 1 speaker assembly.

for Double Cab: See page
for CrewMax: See page

Result

Result	Proceed to
OK	A
NG (for Double Cab)	B
NG (for CrewMax)	C

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.

for Double Cab: See page
for CrewMax: See page

(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.

END (FRONT NO. 2 SPEAKER ASSEMBLY IS DEFECTIVE)

5.	CHECK FRONT NO. 4 SPEAKER ASSEMBLY

(a) Replace the front No. 4 speaker assembly with a known good one.

for Double Cab: See page
for CrewMax: See page

(b) Check that the malfunction disappears.

OK:

Malfunction disappears.

END (FRONT NO. 4 SPEAKER ASSEMBLY IS DEFECTIVE)

6.	INSPECT REAR NO. 1 SPEAKER ASSEMBLY

(a) Remove the rear No. 1 speaker assembly with a known good one.

for Double Cab: See page
for CrewMax: See page

(b) Inspect the rear No. 1 speaker assembly with a known good one.

for Double Cab: See page
for CrewMax: See page

Result

Result	Proceed to
OK (for CrewMax)	A
OK (for Double Cab)	B
NG (for Double Cab)	C
NG (for CrewMax)	D

GO TO STEP 8

REPLACE REAR NO. 1 SPEAKER ASSEMBLY

7.	CHECK REAR NO. 2 SPEAKER ASSEMBLY

(a) Replace the rear No. 2 speaker assembly with a known good one (See page ).

(b) Check that the malfunction disappears.

NOTICE:

Connect all the connectors to the rear No. 2 speaker assemblies that were disconnected.
Connect all the connectors to the rear No. 2 speaker assemblies that were disconnected.
Perform the above inspection on both LH and RH sides.

OK:

Malfunction disappears.

END (REAR NO. 2 SPEAKER ASSEMBLY IS DEFECTIVE)

8.	CHECK STEREO COMPONENT AMPLIFIER ASSEMBLY

(a) Replace the stereo component amplifier assembly with a known good one (See page ).

(b) Check that the malfunction disappears.

OK:

Malfunction disappears.

Result

Result	Proceed to
OK	A
NG (for Column Shift Type)	B
NG (for Floor Shift Type)	C

END (STEREO COMPONENT AMPLIFIER ASSEMBLY IS DEFECTIVE)

REPLACE NAVIGATION RECEIVER ASSEMBLY

9.	CHECK HARNESS AND CONNECTOR (SPEAKER CIRCUIT)

*1: for RH Side
*2: for LH Side

(a) Disconnect the M8*1 and/or N10*2 front No. 1 speaker assembly connector.

(b) Disconnect the J146*1 and/or J148*2 front No. 2 speaker assembly connector.

(d) Disconnect the J150 front No. 4 speaker assembly connector.

(e) Disconnect the O1*1 and/or O7*2 rear No. 1 speaker assembly connector.

(f) Disconnect the O2*1 and/or O8*2 rear No. 2 speaker assembly connector.

(g) Disconnect the P14 No. 1 box speaker assembly connector.

(h) Disconnect the J142 and J143 stereo component amplifier assembly connectors.

(i) Measure the resistance according to the value(s) in the table below.

Standard Resistance:

Tester Connection	Condition	Specified Condition
J142-2 (FR+) - J146-3 (TWR+)	Always	Below 1 Ω
J142-6 (FR-) - J146-4 (TWR-)	Always	Below 1 Ω
J146-1 (+) - M1-3	Always	Below 1 Ω
J146-2 (-) - M1-2	Always	Below 1 Ω
J143-9 (WFR+) - M8-1	Always	Below 1 Ω
J143-3 (WFR-) - M8-2	Always	Below 1 Ω
J142-10 (RR+) - O2-3 (+TW)	Always	Below 1 Ω
J142-4 (RR-) - O2-2 (-TW)	Always	Below 1 Ω
O2-4 (+) - O1-1	Always	Below 1 Ω
O2-1 (-) - O1-2	Always	Below 1 Ω
J143-5 (WF1+) - P14-1	Always	Below 1 Ω
J143-12 (WF1-) - P14-2	Always	Below 1 Ω
J142-3 (RL+) - O8-3 (+TW)	Always	Below 1 Ω
J142-9 (RL-) - O8-2 (-TW)	Always	Below 1 Ω
O8-4 (+) - O7-1	Always	Below 1 Ω
O8-1 (-) - O7-2	Always	Below 1 Ω
J143-2 (WFL+) - N10-1	Always	Below 1 Ω
J143-1 (WFL-) - N10-2	Always	Below 1 Ω
J142-8 (FL+) - J148-3 (TWL+)	Always	Below 1 Ω
J142-7 (FL-) - J148-4 (TWL-)	Always	Below 1 Ω
J148-1 (+) - N1-3	Always	Below 1 Ω
J148-2 (-) - N1-2	Always	Below 1 Ω
J143-4 (CTR+) - J150-1	Always	Below 1 Ω
J143-10 (CTR-) - J150-2	Always	Below 1 Ω
J142-2 (FR+) - Body ground	Always	10 kΩ or higher
J142-6 (FR-) - Body ground	Always	10 kΩ or higher
J146-1 (+) - Body ground	Always	10 kΩ or higher
J146-2 (-) - Body ground	Always	10 kΩ or higher
J143-9 (WFR+) - Body ground	Always	10 kΩ or higher
J143-3 (WFR-) - Body ground	Always	10 kΩ or higher
J142-10 (RR+) - Body ground	Always	10 kΩ or higher
J142-4 (RR-) - Body ground	Always	10 kΩ or higher
O2-4 (+) - Body ground	Always	10 kΩ or higher
O2-1 (-) - Body ground	Always	10 kΩ or higher
J143-5 (WF1+) - Body ground	Always	10 kΩ or higher
J143-12 (WF1-) - Body ground	Always	10 kΩ or higher
J142-3 (RL+) - Body ground	Always	10 kΩ or higher
J142-9 (RL-) - Body ground	Always	10 kΩ or higher
O8-4 (+) - Body ground	Always	10 kΩ or higher
O8-1 (-) - Body ground	Always	10 kΩ or higher
J143-2 (WFL+) - Body ground	Always	10 kΩ or higher
J143-1 (WFL-) - Body ground	Always	10 kΩ or higher
J142-8 (FL+) - Body ground	Always	10 kΩ or higher
J142-7 (FL-) - Body ground	Always	10 kΩ or higher
J148-1 (+) - Body ground	Always	10 kΩ or higher
J148-2 (-) - Body ground	Always	10 kΩ or higher
J143-4 (CTR+) - Body ground	Always	10 kΩ or higher
J143-10 (CTR-) - Body ground	Always	10 kΩ or higher

REPAIR OR REPLACE HARNESS OR CONNECTOR

10.	INSPECT FRONT NO. 1 SPEAKER ASSEMBLY

(a) Remove the front No. 1 speaker assembly (See page ).

(b) Inspect the front No. 1 speaker assembly (See page ).

REPLACE FRONT NO. 1 SPEAKER ASSEMBLY

11.	CHECK FRONT NO. 2 SPEAKER ASSEMBLY

(a) Replace the front No. 2 speaker assembly with a known good one (See page ).

(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.

END (FRONT NO. 2 SPEAKER ASSEMBLY IS DEFECTIVE)

12.	CHECK FRONT NO. 4 SPEAKER ASSEMBLY

(a) Replace the front No. 4 speaker assembly with a known good one (See page ).

(b) Check that the malfunction disappears.

OK:

Malfunction disappears.

END (FRONT NO. 4 SPEAKER ASSEMBLY IS DEFECTIVE)

13.	CHECK FRONT NO. 3 SPEAKER ASSEMBLY

(a) Replace the front No. 3 speaker assembly with a known good one (See page ).

(b) Check that the malfunction disappears.

NOTICE:

Connect all the connectors to the front No. 3 speaker assemblies that were disconnected.
Connect all the connectors to the front No. 3 speaker assemblies that were disconnected.
Perform the above inspection on both LH and RH sides.

OK:

Malfunction disappears.

END (FRONT NO. 3 SPEAKER ASSEMBLY IS DEFECTIVE)

14.	INSPECT NO. 1 BOX SPEAKER ASSEMBLY

(a) Remove the No. 1 box speaker assembly (See page ).

(b) Inspect the No. 1 box speaker assembly (See page ).

REPLACE NO. 1 BOX SPEAKER ASSEMBLY

15.	INSPECT REAR NO. 1 SPEAKER ASSEMBLY

(a) Remove the rear No. 1 speaker assembly (See page ).

(b) Inspect the rear No. 1 speaker assembly (See page ).

REPLACE REAR NO. 1 SPEAKER ASSEMBLY

16.	CHECK REAR NO. 2 SPEAKER ASSEMBLY

(a) Replace the rear No. 2 speaker assembly with a known good one (See page ).

(b) Check that the malfunction disappears.

NOTICE:

Connect all the connectors to the rear No. 2 speaker assemblies that were disconnected.
Connect all the connectors to the rear No. 2 speaker assemblies that were disconnected.
Perform the above inspection on both LH and RH sides.

OK:

Malfunction disappears.

END (REAR NO. 2 SPEAKER ASSEMBLY IS DEFECTIVE)

17.	CHECK STEREO COMPONENT AMPLIFIER ASSEMBLY

(a) Replace the stereo component amplifier assembly with a known good one (See page ).

(b) Check that the malfunction disappears.

OK:

Malfunction disappears.

Result

Result	Proceed to
OK	A
NG (for Column Shift Type)	B
NG (for Floor Shift Type)	C

END (STEREO COMPONENT AMPLIFIER ASSEMBLY IS DEFECTIVE)

REPLACE NAVIGATION RECEIVER ASSEMBLY

Sound Signal Circuit between Navigation Receiver Assembly and Stereo Jack Adapter

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