Toyota Tundra. Manual — part 229

Standard resistance

TESTER CONNECTION SPECIFIED CONDITION

NG: REPAIR OR REPLACE HARNESS OR CONNECTOR

Fig. 268: Identifying W2 And T4 Connectors Terminals
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.

OK: Go to next step.

2. CHECK VIDEO TERMINAL

a. Reconnect the T4 terminal connector.

b. Using an oscilloscope, check the waveform between each terminal and the body ground according

to the conditions, as shown in the table below.

Tester Connection

Condition Specified Condition

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

Always

Below 1 ohms

W2-7 (R1+) - T4-2 (VALR+)

W2-8 (L1+) - T4-1 (VAR+)

W2-23 (SGND) - T4-3 (VA-)

W2-24 (ADPG) - Body ground

Always

10 kohms or higher

W2-7 (R1+) - Body ground
W2-8 (L1+) - Body ground

W2-23 (SGND) - Body ground

2009 Toyota Tundra

2009 ACCESSORIES AND EQUIPMENT Audio/Visual - Tundra

Waveform

TESTER CONNECTION SPECIFIED CONDITION

Result

RESULT

Fig. 269: Identifying T4 Connector Terminals
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.

B: REPLACE VIDEO TERMINAL (see REMOVAL )

C: REPLACE VIDEO TERMINAL (see REMOVAL )

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

SOUND SIGNAL CIRCUIT BETWEEN NAVIGATION RECEIVER ASSEMBLY AND TELEVISION
DISPLAY ASSEMBLY

DESCRIPTION

Tester Connection

Condition

Specified Condition

T4-1 (VAR+) - Body

ground

External device is playing, sound is
being produced

Waveform synchronized with
sound is output

T4-2 (VAL+) - Body

ground

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

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

WIRING DIAGRAM

Fig. 270: Sound 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.

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

Tester Connection

Condition Specified Condition

K8-2 (CDR+) - W2-28 (R+)

Always

Below 1 ohms

K8-3 (CDR-) - W2-29 (R-)

K8-4 (CDL+) - W2-30 (L+)

K8-5 (CDL-) W2-31 (L-)

K8-1 (CSLD) - W2-27 (SLD9)

K8-2 (CDR+) - Body ground

Always

10 kohms or higher

K8-3 (CDR-) - Body ground

K8-4 (CDL+) - Body ground

K8-S (CDL-) Body ground

2009 Toyota Tundra

2009 ACCESSORIES AND EQUIPMENT Audio/Visual - Tundra

Fig. 271: Identifying W2 And K8 Connectors Terminals
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.

NG: REPAIR OR REPLACE HARNESS OR CONNECTOR

OK: Go to next step.

2. CHECK TELEVISION DISPLAY

a. Reconnect the W2 display connector.

b. Using an oscilloscope, check the waveform between each terminal and the body ground according

to the conditions, as shown in the table below.

Waveform

TESTER CONNECTION SPECIFIED CONDITION

K8-1 (CSLD) - Body ground

Tester Connection

Condition

Specified Condition

W2-28 (R+) - Body

ground

Audio sound is being
produced

A waveform synchronized with sound is
output

W2-29 (R-) - Body

ground

W2-30 (L+) - Body

ground

W2-31 (L-) - Body

2009 Toyota Tundra

2009 ACCESSORIES AND EQUIPMENT Audio/Visual - Tundra