Toyota Tundra. Manual — part 190

Result:

RESULT REFERENCE

B: REPLACE RADIO RECEIVER (see REMOVAL )

C: REPLACE RADIO RECEIVER (see REMOVAL )

A: END

DTC 01-DC TRANSMISSION ERROR

DESCRIPTION

DTC TROUBLE DETECTION CONDITION

INSPECTION PROCEDURE

1. CHECK FOR DTC OF OTHER COMPONENTS

a. Check if the component shown by the sub-code is displayed in the check result of the other

components.

1. Check if "01-DC" is output for the other components.

2. If "01-DC" is output for any other components, check if the same physical address is

Result

Proceed to

OK

A

NG (for Column Shift Type)

B

NG (for Floor Shift Type)

C

DTC

Code

DTC Detection Condition

Trouble Area

01-

DC*

Transmission to component shown by
subcode failed (Detecting this DTC does
not always mean actual failure)

If the same sub-code is recorded in other components,
check harness for power supply and communication
system of all components shown by code

HINT:
*: This code may be stored if the engine is started, idled for 60 seconds and then the ignition switch is
turned to the START position again.

NOTE:



Before starting troubleshooting, be sure to clear DTCs to erase codes
stored due to the reasons described in the HINT above. Then, check for
DTCs and troubleshoot according to the output DTCs.



The radio receiver is the master unit.



Be sure to clear and recheck DTCs after the inspection is completed to
confirm that no DTCs are output.

NOTE:

Be sure to read the DESCRIPTION before performing the following procedures.

2009 Toyota Tundra

2009 ACCESSORIES AND EQUIPMENT Audio/Visual - Tundra

displayed.

HINT:

For the list of the components shown by sub-codes, refer to the table in the next step.

Result:

RESULT REFERENCE

B: Go to step 4

A: Go to Next Step

2. CLEAR DTC

a. Clear the DTCs (see DTC CHECK / CLEAR ).

HINT:

If "01-DC" is output for only one component, this may not indicate a malfunction.

3. RECHECK DTC

a. Recheck for DTCs and check if the same trouble occurs again.

OK: Malfunction disappears.

NG: Go to step 5

OK: USE SIMULATION METHOD TO CHECK (See ELECTRONIC CIRCUIT INSPECTION
PROCEDURE )

4. IDENTIFY COMPONENT WHICH HAS STORED THIS CODE

a. Enter the diagnostic mode.

Result

Proceed to

"01-DC" is not output or the same physical address is not displayed

A

"01-DC" is output and the same physical address is displayed

B

2009 Toyota Tundra

2009 ACCESSORIES AND EQUIPMENT Audio/Visual - Tundra

Fig. 153: Service Check Mode And Detailed Information Diagnostic Mode Flow Chart
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.

b. Press the preset switch "3" to change to "Detailed Information Mode".

c. Identify the component which has stored this code.

Component table:

COMPONENT TABLE

Component

Physical address

Stereo component amplifier

440

"Bluetooth" handsfree module

19D

Radio receiver

190

Television display*

1B0

HINT:

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2009 ACCESSORIES AND EQUIPMENT Audio/Visual - Tundra

5. CHECK COMPONENT WHICH HAS STORED THIS CODE

a. Select the component which has stored this code.

Component table:

COMPONENT TABLE

NEXT: END

DTC 01-DD MASTER RESET; DTC 01-E1 VOICE PROCESSING DEVICE ON ERROR

DESCRIPTION

DTC TROUBLE DETECTION CONDITION



*: w/ Rear Seat Entertainment System



"440 (stereo component amplifier)" is the component which has stored this code in the
example shown in the illustration.



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

Component

Proceed to

Stereo component
amplifier

Stereo component amplifier communication error (see STEREO
COMPONENT AMPLIFIER COMMUNICATION ERROR )

"Bluetooth"
handsfree module

"Bluetooth" handsfree module communication error (see BLUETOOTH
HANDSFREE MODULE COMMUNICATION ERROR )

Radio receiver

Radio receiver communication error (see RADIO RECEIVER
COMMUNICATION ERROR )

Television display*

Television display assembly communication error (see TELEVISION
DISPLAY ASSEMBLY COMMUNICATION ERROR )

HINT:
*: w/ Rear Seat Entertainment System

DTC

Code

DTC Detection Condition

Trouble Area

01-

DD*1

The device that should be the master has been
disconnected after engine start.



Radio receiver power source circuit



AVC-LAN circuit between the radio
receiver and the component which has
stored this code



Radio receiver



Component which has stored this code

01-

E1*2

The AMP device records that the AMP output
does not function even while the source device
operates.

HINT:
*1: This code may be stored if the engine is started and the ignition switch is turned to START position
again.
*2: Even if no fault is present, this trouble code may be stored depending on the battery condition or
engine start voltage.

2009 Toyota Tundra

2009 ACCESSORIES AND EQUIPMENT Audio/Visual - Tundra