DTC    B1569    DVD-ROM Deck Disconnected

for Preparation Click here


DESCRIPTION

The display and navigation module display and the navigation module board are connected by the IEEE cable.
When an IEEE communication error occurs between the display and navigation module display and the navigation module board, this DTC will be stored.

DTC No.
DTC Detection Condition
Trouble Area
B1569
When either of the conditions below is met:
  1. Navigation module board is/was not connected while the power switch is on (IG or ACC).
  2. Communication between the master unit and navigation module board is/was not possible when the engine is/was started.
  1. Navigation module board power source circuit
  2. IEEE cable
  3. Display and navigation module display
  4. Navigation module board

HINT:
  1. Even if no fault is present, this DTC may be stored depending on the auxiliary battery condition or hybrid system start voltage.
  2. The display and navigation module display is the master unit.


WIRING DIAGRAM


E189963E21


INSPECTION PROCEDURE

1.CHECK OPTIONAL COMPONENTS (INCLUDING ASSOCIATED WIRING)

  1. Check for optional components.

    1. Check that optional components (including associated wiring) which generate radio waves are not installed.

      Result:
      Result
      		Proceed to
      Optional components (including associated wiring) are installed.
      		A
      Optional components (including associated wiring) are not installed.
      		B

      HINT:
      1. Electrical noise from radio waves generated by optional components or the wiring for those components may affect IEEE communication.
      2. This DTC may be stored when an IEEE communication error occurs due to electrical noise.



B
Go to step 3
A


2.REMOVE OPTIONAL COMPONENTS (INCLUDING ASSOCIATED WIRING)

  1. Remove optional components (including associated wiring).

    NOTICE:
    Do not remove optional components or associated wiring without the permission of the customer.


NEXT


3.CHECK DTC

  1. Clear the DTCs (Click here).

  1. Recheck for DTCs and check if the same DTC is output again.

    OK:
    No DTCs are output.



NG
Go to step 4
OK

END 

4.CHECK HARNESS AND CONNECTOR (NAVIGATION MODULE BOARD POWER SOURCE)

  1. Disconnect the H65 navigation module board connector.

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

    Standard Resistance:
    Tester Connection
    		Condition
    		Specified Condition
    H65-5 (G) - Body ground
    		Always
    		Below 1 Ω

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

    Standard Voltage:
    Tester Connection
    		Condition
    		Specified Condition
    H65-1 (+B) - H65-5 (G)
    		Power switch off
    		11 to 14 V
    H65-3 (ACC) - H65-5 (G)
    		Power switch on (ACC)
    		11 to 14 V



NG
Go to step 8
OK


5.CHECK IEEE CABLE CONNECTOR

  1. Check the IEEE cable connectors.

    1. Check if the IEEE cable connectors between the navigation module board and the display and navigation module display have any connection problems (Click here).

  1. Check that the screen display is normal.

    OK:
    Screen display is normal.



NG
Go to step 6
OK

END 

6.REPLACE IEEE CABLE

  1. Replace the IEEE cable between the navigation module board and the display and navigation module display.

  1. Check that the screen display is normal.

    OK:
    Screen display is normal.



NG
Go to step 7
OK

END 

7.REPLACE NAVIGATION MODULE BOARD

  1. Replace the navigation module board (Click here).

  1. Clear the DTCs (Click here).

  1. Recheck for DTCs and check if the same DTC is output again.

    OK:
    No DTCs are output.



NG
REPLACE DISPLAY AND NAVIGATION MODULE DISPLAY (Click here)
OK

END 

8.CHECK HARNESS AND CONNECTOR

  1. Disconnect the H66 display and navigation module display connector.

  1. Disconnect the H65 navigation module board connector.

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

    Standard Resistance:
    Tester Connection
    		Condition
    		Specified Condition
    H66-1 (+B) - H65-1 (+B)
    		Always
    		Below 1 Ω
    H66-2 (ACC) - H65-3 (ACC)
    		Always
    		Below 1 Ω
    H66-4 (G) - H65-5 (G)
    		Always
    		Below 1 Ω
    H66-1 (+B) - Body ground
    		Always
    		10 kΩ or higher
    H66-2 (ACC) - Body ground
    		Always
    		10 kΩ or higher
    H66-4 (G) - Body ground
    		Always
    		10 kΩ or higher



NG
REPAIR OR REPLACE HARNESS OR CONNECTOR
OK

REPLACE DISPLAY AND NAVIGATION MODULE DISPLAY (Click here)