DTC    01-D6    No Master (G/W)

DTC    01-D7    Connection Check Error (G/W)

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DESCRIPTION


DTC No.
DTC Detection Condition
Trouble Area
01-D6
*1
When either condition below is met:
  1. Device that stores (stored) this code has (had) been disconnected when engine switch is on (ACC) or on (IG)
  2. Master device has (had) been disconnected
  1. Wire harness
  2. Radio receiver assembly
  3. Gateway ECU
01-D7
When either condition below is met:
  1. Device that stored this code has (had) been disconnected after engine starts
  2. Master device has (had) been disconnected

HINT:
*1: Even if no failure is detected, a trouble code may be recorded depending on the battery condition or engine start voltage.


INSPECTION PROCEDURE

1.CHECK POWER SOURCE CIRCUIT (RADIO RECEIVER ASSEMBLY)
Please follow this page (Click here).
If the power source circuit is operating normally, proceed to the next step.

NEXT


2.CHECK POWER SOURCE CIRCUIT (GATEWAY ECU)
If the power source circuit is operating normally, proceed to the next step.

NEXT


3.CHECK AVC-LAN CIRCUIT (RADIO RECEIVER ASSEMBLY - GATEWAY ECU)
Please follow this page (Click here).
If the AVC-LAN circuit is operating normally, proceed to the next step.

NEXT


4.CHECK RADIO RECEIVER ASSEMBLY

  1. Check that the malfunction disappears when the radio receiver assembly is replaced with a normal one.

    OK:
    Malfunction disappears.



OK
REPLACE RADIO RECEIVER ASSEMBLY
NG


5.CHECK GATEWAY ECU

  1. Check that the malfunction disappears when the gateway ECU is replaced with a normal one.

    OK:
    Malfunction disappears.



OK
REPLACE GATEWAY ECU
NG

PROCEED TO NEXT CIRCUIT INSPECTION SHOWN IN PROBLEM SYMPTOMS TABLE