01-D6

DESCRIPTION

DTC No.	DTC Detection Condition	Trouble Area
01-D6 *1	When either of the following conditions is met: The component which has stored the code has (had) been disconnected when the ignition switch is in the ACC or ON position The master device has (had) been disconnected when this code is stored	Multi-display power source circuit Power source circuit of the component which has stored this code AVC-LAN circuit between the multi-display and the component which has stored this code Component which has stored this code Multi-display
01-D7 *2	When either of the following conditions is met: The component which has stored the code has (had) been disconnected after the engine starts (started) The master device has (had) been disconnected when this code is (was) stored

HINT:

1. *1: Even if no failure is detected, a trouble code may be recorded depending on the 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 ignition switch in the ACC or ON position, this code is stored.
   

NOTICE:

1. Be sure to clear and recheck DTCs and perform inspection according to the result to avoid the conditions shown in "HINT" above.
   
2. The multi-display is the master unit.
   
3. Be sure to clear and recheck 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 procedures.

1. CHECK MULTI-DISPLAY POWER SOURCE CIRCUIT

Refer to the multi-display power source circuit (Click here).
If the power source circuit is operating normally, proceed to the next step.

NEXT

2. IDENTIFY THE COMPONENT WHICH HAS STORED THIS CODE

1. Enter the diagnostic mode.

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

3. Identify the component which has stored this code.

   Component Table 

   Display	Component
   AUDIO H/U	Radio Receiver
   DSP-AMP	Stereo Component Amplifier
   G/W	Gateway ECU
   NAVI	Navigation ECU
   CAMERA	Television Camera ECU

   HINT:

   "NAVI" is the component which has stored this code in the example shown in the illustration.

NEXT

3. CHECK POWER SOURCE CIRCUIT OF THE 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
   Radio receiver (AUDIO H/U)	Radio receiver power source circuit (Click here)
   Stereo Component Amplifier (DSP-AMP)	Stereo component amplifier power source circuit (Click here)
   Gateway ECU (G/W)	Gateway ECU power source circuit (Click here)
   Navigation ECU (NAVI)	Navigation ECU power source circuit (Click here)
   Television Camera ECU (CAMERA)	Television camera ECU power source circuit (Click here)

NEXT

4. CHECK RADIO RECEIVER

1. Disconnect the radio receiver connectors.

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

   Resistance:

   Tester Connection	Condition	Specified Condition
   ATX+ (R2-5) - ATX- (R2-15)	Always	60 to 80 Ω
   TX+ (R3-9) - TX- (R3-10)	Always	60 to 80 Ω

NG	REPLACE RADIO RECEIVER

OK

5. CHECK HARNESS AND CONNECTOR (MULTI-DISPLAY - COMPONENT WHICH HAS STORED THIS CODE)

1. Referring to the AVC-LAN wiring diagram below, check the AVC-LAN circuit between the multi-display and the component which has stored this code.

   1. Check for an open or short in the AVC-LAN circuit between the multi-display and the component which has stored this code.

      OK:

      There is no open or short circuit.
      

      HINT:

      For details of the connectors, refer to the "Terminals of ECU" (Click here).

      
      

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 normal one and check if the same problem occurs again.

   OK:

   Same problem does not occur.
   

NG	REPLACE MULTI-DISPLAY

OK
END