Toyota Tundra. Manual — part 580

CHART

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

3. INSPECT NAVIGATION RECEIVER

a. Disconnect the K18 and K8 receiver connectors.

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

Standard resistance

NAVIGATION RECEIVER TESTER CONNECTION SPECIFIED CONDITION

Fig. 436: Identifying K18 And K8 Receiver Connectors

Component

Proceed to

Navigation receiver (140)

NAVIGATION RECEIVER ASSEMBLY
POWER SOURCE CIRCUIT

Television display (1B0)*

TELEVISION DISPLAY POWER SOURCE
CIRCUIT *

HINT:
*: w/ Rear Seat Entertainment System

Tester Connection

Condition Specified Condition

K18-5 (ATX+) - K18-15 (ATX-)

Always

60 to 80 ohms

K8-9 (TXM+) - K8-10 (TXM-)*

HINT:
*: w/ Rear Seat Entertainment System

2009 Toyota Tundra

2009 ACCESSORIES AND EQUIPMENT Navigation - Tundra

Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.

Result

NAVIGATION RECEIVER RESULT CHART

B: REPLACE NAVIGATION RECEIVER (see REMOVAL (For Column Shift Type) )

C: REPLACE NAVIGATION RECEIVER (see REMOVAL (For Floor Shift Type) )

A: Go to Next Step

4. CHECK HARNESS AND CONNECTOR (STEREO COMPONENT AMPLIFIER -

COMPONENT SHOWN BY SUB-CODE)

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 "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 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.

Fig. 437: AVC-LAN Wiring Diagram (W/O 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 Navigation - Tundra

Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.

Fig. 438: AVC-LAN Wiring Diagram (W/ Rear Seat Entertainment System)
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.

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.

b. Press the "LAN Mon" switch to change to "LAN Monitor" mode.

2009 Toyota Tundra

2009 ACCESSORIES AND EQUIPMENT Navigation - Tundra

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

HINT:



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



The sub-code will be indicated by its physical address.



For the component list, refer to "DIAGNOSIS DISPLAY DETAILED DESCRIPTION" .

Fig. 439: Display - System Check Mode
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.

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

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

2009 Toyota Tundra

2009 ACCESSORIES AND EQUIPMENT Navigation - Tundra