Toyota Tundra. Manual — part 163

Fig. 73: Speaker (Independent Amplifier) - Wiring Diagram (2 Of 2)
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.

INSPECTION PROCEDURE

1. CHECK SPEAKER

a. Check the malfunctioning speakers.

Result:

RESULT REFERENCE

B: Go to step 11

Result

Proceed to

Malfunction in front speaker area

A

Malfunction in rear speaker area

B

2009 Toyota Tundra

2009 ACCESSORIES AND EQUIPMENT Audio/Visual - Tundra

A: Go to Next Step

2. CHECK SPEAKER

a. Check the malfunctioning speakers.

Result:

RESULT REFERENCE

B: Go to step 5

C: Go to step 7

D: Go to step 9

A: Go to Next Step

3. 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.

Standard resistance

TESTER CONNECTION SPECIFIED CONDITION

NG: REPLACE FRONT NO. 1 SPEAKER (see REMOVAL )

Fig. 74: Identifying Front No. 1 Speaker Connector Terminals

Result

Proceed to

Front No. 1 speaker

A

Front No. 2 speaker

B

Front No. 3 speaker

C

Front No. 4 speaker

D

Tester Connection Condition Specified Condition

1 - 2

Always

1.5 to 2.1 ohms

2009 Toyota Tundra

2009 ACCESSORIES AND EQUIPMENT Audio/Visual - Tundra

Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.

OK: Go to Next Step

4. CHECK HARNESS AND CONNECTOR (STEREO COMPONENT AMPLIFIER - FRONT NO. 1

SPEAKER)

a. Disconnect the M8 and N10 speaker connectors.

b. Disconnect the K17 amplifier connector.

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

K17-2(WFL+) - N10-1

Always

Below 1 ohms

K17-1(WFL-) - N10-2

K17-2 (WFL+) - Body ground

Always

10 kohms or higher

K17-1 (WFL-) - Body ground

Tester Connection

Condition Specified Condition

K17-9 (WFR+) - M8-1

Always

Below 1 ohms

K17-3(WFR-) - M8-2

K17-9(WFR+) - Body ground

Always

10 kohms or higher

K17-3(WFR-) - Body ground

2009 Toyota Tundra

2009 ACCESSORIES AND EQUIPMENT Audio/Visual - Tundra

Fig. 75: Checking Harness And Connector (Stereo Component Amplifier - Front No. 1
Speaker)
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.

NG: REPAIR OR REPLACE HARNESS OR CONNECTOR

OK: REPLACE STEREO COMPONENT AMPLIFIER (see REMOVAL )

5. INSPECT FRONT NO. 2 SPEAKER

a. Disconnect the K10 and K12 speaker connectors.

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

Standard resistance

TESTER CONNECTION SPECIFIED CONDITION

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

Tester Connection Condition Specified Condition

1 - 3

Always

Below 1 ohms

2 - 4
3 - 4

Always

1.3 to 2.3 ohms

2009 Toyota Tundra

2009 ACCESSORIES AND EQUIPMENT Audio/Visual - Tundra