DTC    B159E    No Response from Clock Device

DTC    B1568    Clock Device Disconnected

for Preparation Click here


DESCRIPTION

The display and navigation module display and center cluster module circuit are connected by the AVC-LAN communication line.
When an AVC-LAN communication error occurs between the display and navigation module display and center cluster module circuit, these DTCs will be stored.

DTC No.
DTC Detection Condition
Trouble Area
B159E
No response to the diagnostic memory request from the master unit.
  1. Center cluster module circuit power source circuit
  2. AVC-LAN circuit between display and navigation module display and center cluster module circuit
  3. Center cluster module circuit
  4. Display and navigation module display
B1568*1
A device that is listed in the AVC-LAN connected device record of the master unit is missing.

HINT:
  1. *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


E183445E23


INSPECTION PROCEDURE

NOTICE:
Inspect the fuses for circuits related to this system before performing the following 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 AVC-LAN communication.
      2. These DTCs may be stored when an AVC-LAN 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 (CENTER CLUSTER MODULE CIRCUIT POWER SOURCE)

  1. Disconnect the H80 center cluster module circuit connector.

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

    Standard Resistance:
    Tester Connection
    		Condition
    		Specified Condition
    H80-16 (GND) - 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
    H80-4 (+B) - H80-16 (GND)
    		Power switch off
    		11 to 14 V
    H80-1 (ACC) - H80-16 (GND)
    		Power switch on (ACC)
    		11 to 14 V
    H80-2 (IG+) - H80-16 (GND)
    		Power switch on (IG)
    		11 to 14 V



NG
REPAIR OR REPLACE HARNESS OR CONNECTOR
OK


5.CHECK HARNESS AND CONNECTOR

  1. Disconnect the H80 center cluster module circuit connector.

  1. Disconnect the H61 display and navigation module display connector.

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

    Standard Resistance:
    Tester Connection
    		Condition
    		Specified Condition
    H80-15 (TX1+) - H61-12 (TX3+)
    		Always
    		Below 1 Ω
    H80-13 (TX1-) - H61-13 (TX3-)
    		Always
    		Below 1 Ω
    H80-15 (TX1+) - Body ground
    		Always
    		10 kΩ or higher
    H80-13 (TX1-) - Body ground
    		Always
    		10 kΩ or higher



NG
REPAIR OR REPLACE HARNESS OR CONNECTOR
OK


6.REPLACE CENTER CLUSTER MODULE CIRCUIT

  1. Replace the center cluster module circuit (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