Dtc 01-Df Master Error

Audio Visual Telematics. Land Cruiser. Urj200, 202 Grj200 Vdj200
Audio Video. Land Cruiser. Urj200, 202 Grj200 Vdj200

DESCRIPTION

INSPECTION PROCEDURE

CHECK RADIO RECEIVER POWER SOURCE CIRCUIT

INSPECT RADIO RECEIVER ASSEMBLY

IDENTIFY COMPONENT WHICH HAS STORED THIS CODE

CHECK COMPONENT SHOWN BY SUB-CODE

CHECK HARNESS AND CONNECTOR (AVC-LAN CIRCUIT)

REPLACE RADIO RECEIVER ASSEMBLY

CLEAR DTC

RECHECK FOR DTC

DTC 01-DF Master Error


DESCRIPTION


DTC No.
DTC Detection Condition
Trouble Area
01-DF
*1
The device with a display fails and the master unit is switched to the audio device.
Also when a communication error between the sub-master unit (audio) and master unit occurs, this DTC is stored.
  1. Radio receiver assembly power source circuit
  2. AVC-LAN circuit between the radio receiver assembly and component which has stored this code
  3. Radio receiver assembly
  4. Component which has stored this code
HINT:
*1: When 210 seconds have elapsed after disconnecting the power supply connector of the master component with the engine switch on (IG) or (ACC), this DTC is stored.
NOTICE:
  1. Before starting troubleshooting, be sure to clear the DTCs stored due to the reason described in the HINT above. Then, check for DTCs and troubleshoot according to the output DTCs.
  2. The radio receiver assembly is the master unit.
  3. Be sure to clear and recheck for the DTCs after the inspection is completed to confirm that no DTCs are output.

INSPECTION PROCEDURE

NOTICE:
Be sure to read Description before performing the following procedure.
1.CHECK RADIO RECEIVER POWER SOURCE CIRCUIT
HINT:
Refer to Radio Receiver Power Source Circuit (Click here).
If the power source circuit is operating normally, proceed to the next step.

NEXT


2.INSPECT RADIO RECEIVER ASSEMBLY


    Land Cruiser. Urj200, 202 Grj200 Vdj200.Audio Video.Audio And Visual System (For Radio Receiver Type). Dtc 01-Df Master Error

  1. Disconnect the F1 and F55 radio receiver assembly connectors.

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

    Standard Resistance:
    Tester Connection
    		Condition
    		Specified Condition
    F1-5 (ATX+) - F1-15 (ATX-)
    		Always
    		60 to 80 Ω
    F55-9 (TXM+) - F55-10 (TXM-)
    		Always
    		60 to 80 Ω
    Text in Illustration
    *1
    		Component without harness connected
    (Radio Receiver Assembly)
    *2
    		Component without harness connected
    (Radio Receiver Assembly)


NG
REPLACE RADIO RECEIVER ASSEMBLY (Click here)
OK


3.IDENTIFY COMPONENT WHICH HAS STORED THIS CODE


  1. Enter diagnostic mode.


    Land Cruiser. Urj200, 202 Grj200 Vdj200.Audio Video.Audio And Visual System (For Radio Receiver Type). Dtc 01-Df Master Error

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

  1. Identify the component which has stored this code.

    Component Table
    Component
    		Physical Address
    Stereo component amplifier assembly
    		440
    Radio receiver assembly
    		190
    Multi-media interface ECU
    		388
    HINT:
    1. "P440" set by the stereo component amplifier assembly is shown in the preceding illustration as an example.
    2. For details of the DTC display, refer to DTC Check/Clear (Click here).

NEXT


4.CHECK COMPONENT SHOWN BY SUB-CODE

  1. Select the component shown by the sub-code.

    Component Table
    Component
    		Proceed to
    Except radio receiver assembly
    		A
    Radio receiver assembly (190)
    		B


B
REPLACE RADIO RECEIVER ASSEMBLY (Click here)
A


5.CHECK HARNESS AND CONNECTOR (AVC-LAN CIRCUIT)
HINT:
For details of the connectors, refer to Terminals of ECU (Click here).


  1. Referring to the following AVC-LAN wiring diagram, check the AVC-LAN circuit between the radio receiver assembly and component which has stored this code.

    1. Disconnect all connectors between the radio receiver assembly and component which has stored this code.



    2. Check for an open or short in the AVC-LAN circuit between the radio receiver assembly and component which has stored this code.

      OK:
      There is no open or short circuit.

      Land Cruiser. Urj200, 202 Grj200 Vdj200.Audio Video.Audio And Visual System (For Radio Receiver Type). Dtc 01-Df Master Error



NG
REPAIR OR REPLACE HARNESS OR CONNECTOR
OK


6.REPLACE RADIO RECEIVER ASSEMBLY

  1. Replace the radio receiver assembly with a known good one.


NEXT


7.CLEAR DTC

  1. Clear the DTCs (Click here).


NEXT


8.RECHECK FOR DTC

  1. Recheck for DTCs and check if the same problem occurs again.

    OK:
    Malfunction disappears.


NG
REPLACE COMPONENT WHICH HAS STORED THIS CODE
OK

END