Toyota Tundra. Manual — part 230

Fig. 272: Identifying W2 Connector Terminals
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.

NG: REPLACE TELEVISION DISPLAY (see REMOVAL )

OK: PROCEED TO NEXT CIRCUIT INSPECTION SHOWN IN PROBLEM SYMPTOMS
TABLE (see PROBLEM SYMPTOMS TABLE )

MUTE SIGNAL CIRCUIT BETWEEN RADIO RECEIVER AND TELEVISION DISPLAY
ASSEMBLY

DESCRIPTION

The radio receiver controls the volume according to the mute signal from the television display.

WIRING DIAGRAM

Fig. 273: Mute Signal Circuit Between Radio Receiver And Television Display Assembly - Wiring
Diagram
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.

INSPECTION PROCEDURE

1. CHECK HARNESS AND CONNECTOR (TELEVISION DISPLAY - NAVIGATION

RECEIVER)

a. Disconnect the W2 display connector.

b. Disconnect the K22 receiver connector.

ground

2009 Toyota Tundra

2009 ACCESSORIES AND EQUIPMENT Audio/Visual - Tundra

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

Standard resistance

TESTER CONNECTION SPECIFIED CONDITION

NG: REPAIR OR REPLACE HARNESS OR CONNECTOR

Fig. 274: Identifying W2 And K22 Connectors Terminals
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.

OK: Go to next step.

2. CHECK TELEVISION DISPLAY

a. Reconnect the W2 display connector.

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

Standard voltage

TESTER CONNECTION SPECIFIED CONDITION

Tester Connection

Condition Specified Condition

W2-26 (MUTE) - K22-6 (MUTE) Always

Below 1 ohms

W2-26 (MUTE) - Body ground

Always

10 kohms or higher

Tester Connection

Switch Condition

Specified Condition

W2-26 (MUTE) - Body Ignition switch ACC, television display is

3.5 V or higher -->

2009 Toyota Tundra

2009 ACCESSORIES AND EQUIPMENT Audio/Visual - Tundra

NG: REPLACE TELEVISION DISPLAY (see REMOVAL )

Fig. 275: Identifying W2 Connector Terminals
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.

OK: PROCEED TO NEXT CIRCUIT INSPECTION SHOWN IN PROBLEM SYMPTOMS
TABLE (see PROBLEM SYMPTOMS TABLE )

MUTE SIGNAL CIRCUIT BETWEEN NAVIGATION RECEIVER ASSEMBLY AND TELEVISION
DISPLAY ASSEMBLY

DESCRIPTION

The navigation receiver controls the volume according to the mute signal the television display. The mute signal
is sent to reduce noise and popping sound generated switching the mode, etc.

WIRING DIAGRAM

Fig. 276: Mute Signal Circuit Between Navigation Receiver Assembly And Television Display Assembly -
Wiring Diagram
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.

INSPECTION PROCEDURE

1. CHECK HARNESS AND CONNECTOR (TELEVISION DISPLAY - NAVIGATION

RECEIVER)

a. Disconnect the W2 display connector.

ground

playing --> Changing modes

Below 1 V

2009 Toyota Tundra

2009 ACCESSORIES AND EQUIPMENT Audio/Visual - Tundra

b. Disconnect the K8 receiver connector.

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

Standard resistance

TESTER CONNECTION SPECIFIED CONDITION

NG: REPAIR OR REPLACE HARNESS OR CONNECTOR

Fig. 277: Identifying W2 And K8 Connectors Terminals
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.

OK: Go to next step.

2. CHECK TELEVISION DISPLAY

a. Reconnect the W2 display connector.

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

Standard voltage

TESTER CONNECTION SPECIFIED CONDITION

Tester Connection

Condition Specified Condition

W2-26 (MUTE) - K8-6 (MUTE) Always

Below 1 ohms

W2-26 (MUTE) - Body ground

Always

10 kohms or higher

Tester Connection

Switch Condition

Specified Condition

2009 Toyota Tundra

2009 ACCESSORIES AND EQUIPMENT Audio/Visual - Tundra