Toyota Tundra. Manual — part 231

Fig. 278: 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 )

DISPLAY SIGNAL CIRCUIT BETWEEN VIDEO TERMINAL AND TELEVISION DISPLAY

DESCRIPTION

This is the display signal from the video terminal to the television display.

WIRING DIAGRAM

Fig. 279: Display Signal Circuit Between Video Terminal And Television Display - Wiring Diagram
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.

INSPECTION PROCEDURE

1. CHECK HARNESS AND CONNECTOR (TELEVISION DISPLAY - VIDEO TERMINAL)

W2-26 (MUTE) - Body

ground

Ignition switch ACC, television display is
playing --> Changing modes

3.5 V or higher -->

Below 1 V

2009 Toyota Tundra

2009 ACCESSORIES AND EQUIPMENT Audio/Visual - Tundra

a. Disconnect the W2 display connector.

b. Disconnect the T4 terminal 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. 280: Identifying W2 And T4 Connectors Terminals
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.

OK: Go to Next Step

2. CHECK VIDEO TERMINAL

Tester Connection

Condition Specified Condition

W2-24 (ADPG) - T4-8 (ADPG)

Always

Below 1 ohms

W2-6 (VV+) - T4-5 (VV+)
W2-22 (VV-) - T4-6 (VV-)

W2-25 (SGN2) - T4-7 (SG)

W2-24 (ADPG) - Body ground

Always

10 kohms or higher

W2-6 (VV+) - Body ground

W2-22 (VV-) - Body ground

W2-25 (SGN2) - Body ground

2009 Toyota Tundra

2009 ACCESSORIES AND EQUIPMENT Audio/Visual - Tundra

a. Reconnect the T4 terminal connector.

b. Check that waveform of the display using an oscilloscope.

OK: Waveform is as shown in the illustration.

WAVEFORM REFERENCE

Result

RESULT

B: REPLACE VIDEO TERMINAL (see REMOVAL )

C: REPLACE VIDEO TERMINAL (see REMOVAL )

Fig. 281: Checking Video Terminal
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.

Item

Content

Terminal No. (Symbols)

T4-5 (VV+) - Body ground

Tool Setting

0.2 V/DIV., 0.2 µsec./DIV.

Condition

External device is playing, VTR is displayed

Result

Proceed to

OK

A

NG (for Separate Seat Type)

B

NG (for Bench Seat Type)

C

2009 Toyota Tundra

2009 ACCESSORIES AND EQUIPMENT Audio/Visual - Tundra

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

DISPLAY SIGNAL CIRCUIT BETWEEN TELEVISION DISPLAY ASSEMBLY AND NAVIGATION
RECEIVER ASSEMBLY

DESCRIPTION

This circuit sends a display signal from the television display to the navigation receiver.

WIRING DIAGRAM

Fig. 282: Display Signal Circuit Between Television Display Assembly And Navigation Receiver
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 K5 receiver connector.

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

Standard resistance

TESTER CONNECTION SPECIFIED CONDITION

Tester Connection

Condition Specified Condition

W2-11 (NTSO) - K5-1 (VV+)

Always

Below 1 ohms

W2-10 (SGN1) - K5-4 (VV-)

W2-9 (SLD) - K5-4 (VV-)

W2-11 (NTSO) - Body ground

Always

10 kohms or higher

W2-10 (SGN1) - Body ground

2009 Toyota Tundra

2009 ACCESSORIES AND EQUIPMENT Audio/Visual - Tundra