DTC B15F7 Certification ECU Vehicle Information Reading/Writing Process Malfunction

DESCRIPTION

This DTC is stored when items controlled by the certification ECU cannot be customized via the navigation system vehicle customization screen.

HINT:

The certification ECU controls the entry and start system (for entry function) related items that are customizable via the multi-display screen.

DTC Code	DTC Detection Condition	Trouble Area
B15F7	Certification ECU vehicle setting processing error.	CAN communication system Entry and start system (for entry function) Certification ECU Multi-media module receiver assembly

INSPECTION PROCEDURE

NOTICE:

Before replacing the certification ECU, refer to the entry and start system (for entry function) precaution ().

1.CHECK CAN COMMUNICATION SYSTEM

Use the intelligent tester to check if the CAN communication system is functioning normally.

for LHD:

for RHD:

Result
Result	Proceed to
No DTCs are output	A
DTCs are output (for LHD)	B
DTCs are output (for RHD)	C

B

GO TO CAN COMMUNICATION SYSTEM ()

C

GO TO CAN COMMUNICATION SYSTEM ()

A

2.CHECK ENTRY AND START SYSTEM (for Entry Function)

Check if the entry and start system (for entry function) is malfunctioning ().

HINT:

Customization may not be possible depending on the malfunction in the entry and start system (for entry function).

OK:
No malfunctions are present in the entry and start system (for entry function).

NG

GO TO ENTRY AND START SYSTEM (for Entry Function) ()

OK

3.CHECK CUSTOMIZE ITEMS

Display the "Vehicle Customization" screen.

Make a note of the customizable items for each certification ECU related system.

HINT:

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

Check the customize parameters list for the entry and start system (for entry function) related items that can be customized via the multi-display screen ().

Manually change and confirm that it was possible to successfully change the settings of the customize parameters for each system 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 manual procedure.

NG

REPLACE CERTIFICATION ECU

OK

REPLACE MULTI-MEDIA MODULE RECEIVER ASSEMBLY ()

NAVIGATION / MULTI INFO DISPLAY

Land Cruiser URJ200 URJ202 GRJ200 VDJ200

NAVIGATION SYSTEM