Toyota Tundra. Manual — part 212

OK: REPLACE STEREO COMPONENT AMPLIFIER (see REMOVAL )

SPEAKER CIRCUIT (BUILT-IN AMPLIFIER)

DESCRIPTION

The stereo component amplifier sends sound signals to the speaker.

WIRING DIAGRAM

Fig. 213: Speaker (Built-In Amplifier) - Wiring Diagram
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.

INSPECTION PROCEDURE

1. CHECK SPEAKER

a. Check the malfunctioning speakers.

2009 Toyota Tundra

2009 ACCESSORIES AND EQUIPMENT Audio/Visual - Tundra

Result:

RESULT REFERENCE

B: Go to step 7

A: Go to next step.

2. CHECK SPEAKER

a. Check the malfunctioning speakers.

Result:

RESULT REFERENCE

B: Go to step 5

A: Go to next step.

3. INSPECT FRONT NO. 2 SPEAKER

a. Disconnect the K11 and K13 speaker connectors.

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

Standard resistance:

for LH

TESTER CONNECTION SPECIFIED CONDITION

Result

Proceed to

Malfunction in front speaker area

A

Malfunction in rear speaker area

B

Result

Proceed to

Front No. 2 speaker

A

Front No. 1 speaker

B

Tester Connection Condition Specified Condition

1 (+) - 3 (TWL+)

Always

Below 1 ohms

2 (-) - 4 (TWL-)

3 (TWL+) - 4 (TWL-) Always

3.6 to 4.4 ohms

2009 Toyota Tundra

2009 ACCESSORIES AND EQUIPMENT Audio/Visual - Tundra

Fig. 214: Identifying Front No. 2 Speaker Connector Terminals
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.

for RH

TESTER CONNECTION SPECIFIED CONDITION

NG: REPLACE FRONT NO. 2 SPEAKER (see REMOVAL )

OK: Go to next step.

4. CHECK HARNESS AND CONNECTOR (RADIO RECEIVER - FRONT NO. 2 SPEAKER)

a. Disconnect the K1 receiver connector.

b. Disconnect the K11 and K13 speaker connectors.

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

Standard resistance:

for LH

TESTER CONNECTION SPECIFIED CONDITION

for RH

TESTER CONNECTION SPECIFIED CONDITION

Tester Connection Condition Specified Condition

1 (+) - 3 (TWR+)

Always

Below 1 ohms

2 (-) - 4 (TWR-)

3 (TWR+) - 4 (TWR-) Always

3.6 to 4.4 ohms

Tester Connection

Condition Specified Condition

K1-2 (FL+) - K13-3 (TWL+)

Always

Below 1 ohms

K1-6 (FL-) - K13-4 (TWL-)

K1-2 (FL+) - Body ground

Always

10 kohms or higher

K1-6 (FL-) - Body ground

Tester Connection

Condition Specified Condition

2009 Toyota Tundra

2009 ACCESSORIES AND EQUIPMENT Audio/Visual - Tundra

Fig. 215: Checking Harness And Connector (Radio Receiver - Front No. 2 Speaker)
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.

Result:

RESULT REFERENCE

B: REPLACE RADIO RECEIVER (see REMOVAL )

C: REPLACE RADIO RECEIVER (see REMOVAL )

A: REPAIR OR REPLACE HARNESS OR CONNECTOR

5. INSPECT FRONT NO. 1 SPEAKER

a. Disconnect the M8 and N10 speaker connectors.

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

K1-1 (FR+) - K11-3 (TWR+)

Always

Below 1 ohms

K1-5 (FR-) - K11-4 (TWR-)

K1-1 (FR+) - Body ground

Always

10 kohms or higher

K1-5 (FR-) - Body ground

Result

Proceed to

NG

A

OK (for Column Shift Type)

B

OK (for Floor Shift Type)

C

2009 Toyota Tundra

2009 ACCESSORIES AND EQUIPMENT Audio/Visual - Tundra