DTC    01-D6    No Master

DTC    01-D7    Connection Check Error

for Preparation Click here


DESCRIPTION


DTC No.
DTC Detection Condition
Trouble Area
01-D6*1
Either condition is met:
  1. The device that stores (stored) the DTC has (had) been disconnected with the power switch on (IG) or (ACC).
  2. The master device has (had) been disconnected when this DTC is (was) stored.
  1. Radio receiver assembly power source circuit
  2. Power source circuit of the component which has stored this code
  3. AVC-LAN circuit between the radio receiver assembly and component which has stored this code
  4. Component which has stored this code
  5. Radio receiver assembly
01-D7*2
Either condition is met:
  1. The device that stored the code has (had) been disconnected after the engine starts (started).
  2. The master device has (had) been disconnected when this DTC is (was) stored.

HINT:
  1. *1: Even if no fault is present, this DTC may be stored depending on the auxiliary battery condition or engine start voltage.
  2. *2: When 210 seconds have elapsed after disconnecting the power supply connector of the master component with the power switch on (IG) or (ACC), this DTC is stored.

NOTICE:
  1. Before starting troubleshooting, be sure to clear the DTCs stored due to the reasons 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 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 ASSEMBLY 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.IDENTIFY COMPONENT WHICH HAS STORED THIS CODE


  1. Enter diagnostic mode.


    E110915E13

  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
    Multi-media interface ECU assembly
    		388

    HINT:
    1. The physical address "P440" shown in the above example indicates the stereo component amplifier assembly.
    2. For details of the DTC display, refer to DTC Check/Clear (Click here).


NEXT


3.CHECK POWER SOURCE CIRCUIT OF COMPONENT WHICH HAS STORED THIS CODE

  1. Inspect the power source circuit of the component which has stored this code.
    If the power source circuit is operating normally, proceed to the next step.

    Component Table 
    Component
    		Proceed to
    Stereo component amplifier assembly
    		Stereo component amplifier power source circuit (Click here)
    Multi-media interface ECU assembly
    		Multi-media interface ECU power source circuit (Click here)


NEXT


4.INSPECT RADIO RECEIVER ASSEMBLY

  1. Disconnect the radio receiver assembly connectors.



    E222733E01

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

    Standard Resistance:
    Tester Connection
    		Condition
    		Specified Condition
    H51-5 (ATX+) - H51-15 (ATX-)
    		Always
    		60 to 80 Ω
    H53-9 (TXM+) - H53-10 (TXM-)
    		Always
    		60 to 80 Ω

    Text in Illustration 
    *a
    		Component without harness connected
    (Radio Receiver Assembly)



NG
REPLACE RADIO RECEIVER ASSEMBLY (Click here)
OK


5.CHECK HARNESS AND CONNECTOR

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.


      E195563E12



NG
REPAIR OR REPLACE HARNESS OR CONNECTOR
OK


6.REPLACE COMPONENT WHICH HAS STORED THIS CODE

  1. Replace the component which has stored this code 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 DTC is output again.

    OK:
    No DTCs are output.



NG
REPLACE RADIO RECEIVER ASSEMBLY (Click here)
OK

END