Toyota Tundra. Manual — part 576

Fig. 419: Identifying O1, O2, O7 And O8 Speaker Connectors
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.

NG: REPAIR OR REPLACE HARNESS OR CONNECTOR

OK: REPLACE REAR NO. 2 SPEAKER (See REMOVAL )

16. INSPECT BOX SPEAKER

a. Disconnect the P14 speaker connector.

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

Standard resistance

BOX SPEAKER TESTER CONNECTION SPECIFIED CONDITION

Tester Connection Condition Specified Condition

1 - 2

Always

1.5 to 2.1 ohms

2009 Toyota Tundra

2009 ACCESSORIES AND EQUIPMENT Navigation - Tundra

Fig. 420: Identifying P14 Speaker Connector
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.

NG: REPLACE BOX SPEAKER (See REMOVAL )

OK: Go to Next Step

17. CHECK HARNESS AND CONNECTOR (STEREO COMPONENT AMPLIFIER - BOX

SPEAKER)

a. Disconnect the K17 amplifier connector.

b. Disconnect the P14 speaker connector.

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

Standard resistance

HARNESS AND CONNECTOR (STEREO COMPONENT AMPLIFIER - BOX SPEAKER)
TESTER CONNECTION SPECIFIED CONDITION

Fig. 421: Identifying K17 Amplifier Connector And P14 Speaker Connector
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.

Tester Connection

Condition Specified Condition

K17-5 (WF1+) - P14-1

Always

Below 1 ohms

K17-12 (WF1-) - P14-2

K17-5 (WF1+) - Body ground

Always

10 kohms or higher

K17-12 (WF1-) - Body ground

2009 Toyota Tundra

2009 ACCESSORIES AND EQUIPMENT Navigation - Tundra

NG: REPAIR OR REPLACE HARNESS OR CONNECTOR

OK: REPLACE STEREO COMPONENT AMPLIFIER (See REMOVAL )

SOUND SIGNAL CIRCUIT BETWEEN NAVIGATION RECEIVER ASSEMBLY AND STEREO
JACK ADAPTER

DESCRIPTION

The stereo jack adapter sends an external device sound signal to the navigation receiver through this circuit. The
sound signal that has been sent is amplified by stereo component amplifier, and then is sent to speakers.

If there is an open or short in the circuit, sound cannot be heard from the speakers even if there is no
malfunction in the stereo component amplifier, navigation receiver, or speakers.

WIRING DIAGRAM

Fig. 422: Sound Signal Circuit Between Navigation Receiver Assembly And Stereo Jack Adapter -
Wiring Diagram
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.

INSPECTION PROCEDURE

1. CHECK HARNESS AND CONNECTOR (NAVIGATION ADAPTER) RECEIVER - STEREO

JACK

a. Disconnect the K5 receiver connector.

b. Disconnect the J7 adapter connector.

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

Standard resistance

2009 Toyota Tundra

2009 ACCESSORIES AND EQUIPMENT Navigation - Tundra

HARNESS AND CONNECTOR (NAVIGATION ADAPTER) RECEIVER - STEREO JACK
TESTER CONNECTION SPECIFIED CONDITION

Fig. 423: Identifying K5 Receiver Connector And J7 Adapter Connector
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.

NG: REPAIR OR REPLACE HARNESS OR CONNECTOR

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

AVC-LAN CIRCUIT

DESCRIPTION

Tester Connection

Condition Specified Condition

K5-3 (VAL+) - J7-1 (ALO)

Always

Below 1 ohms

K5-2 (VAR+) - J7-2 (ARO)
K5-5 (VA-) - J7-3 (ASGN)
K5-5 (VA-) - J7-5 (AUXG)
K5-6 (ADPG) - J7-4 (AUXO)
K5-3 (VAL+) - Body ground

Always

10 kohms or higher

K5-2 (VAR+) - Body ground
K5-5 (VA-) - Body ground
K5-6 (ADPG) - Body ground

2009 Toyota Tundra

2009 ACCESSORIES AND EQUIPMENT Navigation - Tundra