Dtc 01-D6 No Master

DESCRIPTION

INSPECTION PROCEDURE

CHECK RADIO RECEIVER ASSEMBLY POWER SOURCE CIRCUIT

IDENTIFY COMPONENT WHICH HAS STORED THIS CODE

CHECK COMPONENT SHOWN BY SUB-CODE

CHECK POWER SOURCE CIRCUIT OF COMPONENT WHICH HAS STORED THIS CODE

INSPECT RADIO RECEIVER ASSEMBLY

CHECK HARNESS AND CONNECTOR (AVC-LAN CIRCUIT)

REPLACE COMPONENT WHICH HAS STORED THIS CODE

CLEAR DTC

RECHECK FOR DTC

DESCRIPTION

HINT:

1. *1: Even if no fault is present, this DTC may be stored 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 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 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 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.

HINT:

Refer to Radio Receiver Power Source Circuit (Click here).

1. Enter diagnostic mode.
   

   
   
   
   

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

3. Identify the component which has stored this code.
   
   

   Component Table

   Component	Physical Address
   Stereo component amplifier assembly	440
   Multi-media interface ECU	388

   HINT:

   1. "P440" set by the stereo component amplifier assembly shown in the preceding illustration as an example.
      
   2. For details of the DTC display, refer to DTC Check/Clear (Click here).
      

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

   Component Table

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

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	Multi-media interface ECU power source circuit (Click here)

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

2. 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)

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.
      

      
      
      
      

1. Replace the component which has stored this code with a known good one.
   

1. Clear the DTCs (Click here).
   

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

   OK:

   Malfunction disappears.