B15F6

NAVIGATION / MULTI INFO DISPLAY: NAVIGATION SYSTEM (for HDD): B15F6: Main Body ECU Vehicle Information Reading/Writing Process Malfunction
B15F6 - Main Body ECU Vehicle Information Reading/Writing Process Malfunction

DESCRIPTION

This DTC is stored when items controlled by the main body ECU (multiplex network body ECU) cannot be customized via the navigation system vehicle customization screen.

HINT

The main body ECU (multiplex network body ECU) controls the items for the following systems that are customizable via the multi-display screen:

* Power door lock control system
* Wireless door lock control system
* Lighting system (for interior)
* Lighting system (for exterior)





INSPECTION PROCEDURE

PROCEDURE

1. CHECK CAN COMMUNICATION SYSTEM

(a) Use the Techstream to check if the CAN communication system is functioning normally How to Proceed With Troubleshooting.

OK:

CAN communication DTCs are not output.

NG -- GO TO CAN COMMUNICATION SYSTEM How to Proceed With Troubleshooting
OK -- Continue to next step.

2. CHECK POWER DOOR LOCK CONTROL SYSTEM

(a) Check if the power door lock control system is malfunctioning How To Proceed With Troubleshooting.

HINT
Customization may not be possible depending on the malfunction in the power door lock control system.

OK:

No malfunctions are present in the power door lock control system.

NG -- GO TO POWER DOOR LOCK CONTROL SYSTEM How To Proceed With Troubleshooting
OK -- Continue to next step.

3. CHECK WIRELESS DOOR LOCK CONTROL SYSTEM

(a) Check if the wireless door lock control system is malfunctioning How To Proceed With Troubleshooting.

HINT
Customization may not be possible depending on the malfunction in the wireless door lock control system.

OK:

No malfunctions are present in the wireless door lock control system.

NG -- GO TO WIRELESS DOOR LOCK CONTROL SYSTEM How To Proceed With Troubleshooting
OK -- Continue to next step.

4. CHECK LIGHTING SYSTEM (for INTERIOR)

(a) Check if the lighting system (for interior) is malfunctioning How To Proceed With Troubleshooting.

HINT
Customization may not be possible depending on the malfunction in the lighting system (for interior).

OK:

No malfunctions are present in the lighting system (for interior).

NG -- GO TO LIGHTING SYSTEM (for INTERIOR) How To Proceed With Troubleshooting
OK -- Continue to next step.

5. CHECK LIGHTING SYSTEM (for EXTERIOR)

(a) Check if the lighting system (for exterior) is malfunctioning How To Proceed With Troubleshooting.

HINT
Customization may not be possible depending on the malfunction in the lighting system (for exterior).

OK:

No malfunctions are present in the lighting system (for exterior).

NG -- GO TO LIGHTING SYSTEM (for EXTERIOR) How To Proceed With Troubleshooting
OK -- Continue to next step.

6. CHECK CUSTOMIZE ITEMS

(a) Display the "Vehicle Customization" screen.





(b) Make a note of the customizable items for each main body ECU (multiplex network body ECU) related system.

HINT
These items shown as customizable via the navigation system vehicle customization screen can also be changed using the Techstream. In a following step, the Techstream will be used.

(1) To match-up the items in the multi-display with the items on the Techstream, check the customize parameters list for the power door lock control system related items that can be customized via the multi-display screen Customize Parameters.

(2) To match-up the items in the multi-display with the items on the Techstream, check the customize parameters list for the wireless door lock control system related items that can be customized via the multi-display screen Programming and Relearning.

(3) To match-up the items in the multi-display with the items on the Techstream, check the customize parameters list for the lighting system (for interior) related items that can be customized via the multi-display screen Interior Lighting System.

(4) To match-up the items in the multi-display with the items on the Techstream, check the customize parameters list for the lighting system (for exterior) related items that can be customized via the multi-display screen Customize Parameters.

(c) Using the Techstream, confirm that it is possible to change the settings of the customize parameters that are available for customization via the multi-display screen.

OK:

The items available for customization via the multi-display screen can be customized successfully using the Techstream.

Text in Illustration





NG -- REPLACE MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU) Removal

OK -- REPLACE NAVIGATION COMPUTER SUB-ASSEMBLY Removal