Toyota Tundra. Manual — part 220

HINT:

The "Bluetooth" handsfree module is built into the radio receiver.

Component table:

COMPONENT TABLE

3. INSPECT RADIO RECEIVER

a. Disconnect the K4 and K22* receiver connectors.

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

Standard resistance

TESTER CONNECTION SPECIFIED CONDITION

RESULT REFERENCE

B: REPLACE RADIO RECEIVER (see REMOVAL )

C: REPLACE RADIO RECEIVER (see REMOVAL )

Component

Proceed to

"Bluetooth" handsfree
module (19D)

Radio receiver power source circuit (see RADIO RECEIVER

POWER SOURCE CIRCUIT )

Radio receiver (190)

Radio receiver power source circuit (see RADIO RECEIVER

POWER SOURCE CIRCUIT )

Television display (1B0)*

Television display assembly power source circuit (see TELEVISION

DISPLAY POWER SOURCE CIRCUIT )

HINT:
*: w/ Rear Seat Entertainment System

Tester Connection

Condition Specified Condition

K4-5 (ATX+) - K4-15 (ATX-)

Always

60 to 80 ohms

K22-9 (TXM+) - K22-10 (TXM-)* Always

60 to 80 ohms

HINT:
*: w/ Rear Seat Entertainment System

Result

Proceed to

OK

A

NG (for Column Shift Type)

B

NG (for Floor Shift Type)

C

2009 Toyota Tundra

2009 ACCESSORIES AND EQUIPMENT Audio/Visual - Tundra

Fig. 243: Identifying K4 And K22 Connectors Terminals
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.

A: Go to next step.

4. CHECK HARNESS AND CONNECTOR (STEREO COMPONENT AMPLIFIER COMPONENT

SHOWN BY SUB-CODE)

Fig. 244: AVC-LAN Wiring Diagram
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.

2009 Toyota Tundra

2009 ACCESSORIES AND EQUIPMENT Audio/Visual - Tundra

HINT:



Start the check from the circuit that is near the component shown by the sub-code first.



For details of the connectors, refer to the "TERMINALS OF ECU" .

a. Referring to the AVC-LAN wiring diagram below, check the AVC-LAN circuit between the stereo

component amplifier and the component shown by the sub-code.

1. Disconnect all connectors between the stereo component amplifier and the component shown

by the sub-code.

2. Check for an open or short in the AVC-LAN circuit between the stereo component amplifier

and the component shown by the sub-code.

OK: There is no open or short circuit.

NG: REPAIR OR REPLACE HARNESS OR CONNECTOR

OK: Go to next step.

5. REPLACE COMPONENT SHOWN BY SUB-CODE

a. Replace the component shown by the sub-code with a normal one and check if the same problem

occurs again.

OK: Same problem does not occur.

NG: REPLACE STEREO COMPONENT AMPLIFIER (see REMOVAL )

OK: END

TELEVISION DISPLAY ASSEMBLY COMMUNICATION ERROR

INSPECTION PROCEDURE

1. IDENTIFY COMPONENT SHOWN BY SUB-CODE

a. Enter the diagnostic mode.

2009 Toyota Tundra

2009 ACCESSORIES AND EQUIPMENT Audio/Visual - Tundra

Fig. 245: Service Check Mode And Detailed Information Diagnostic Mode Flow Chart
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.

b. Press the preset switch "2" to change to "Detailed Information Mode".

c. Identify the component shown by the sub-code.

HINT:



"190 (radio receiver)" is the component shown by the sub-code in the example shown in the
illustration.



For details of the DTC display, refer to the "DTC CHECK / CLEAR" .

2. CHECK POWER SOURCE CIRCUIT OF COMPONENT SHOWN BY SUB-CODE

a. Inspect the power source circuit of the component shown by the sub-code.

If the power source circuit is operating normally, proceed to the next step.

HINT:

2009 Toyota Tundra

2009 ACCESSORIES AND EQUIPMENT Audio/Visual - Tundra