Toyota Tacoma (2015-2018) Service Manual: Certification ECU Vehicle Information Reading/Writing Process Malfunction (B15F7)

Toyota Tacoma (2015-2018) Service Manual / Navigation / Multi Info Display / Navigation System / Certification ECU Vehicle Information Reading/Writing Process Malfunction (B15F7)

DESCRIPTION

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

HINT:

The certification ECU (smart key ECU assembly) controls the smart key system related items that are customizable via the audio and visual system vehicle customization screen.

DTC No.	DTC Detection Condition	Trouble Area
B15F7	Certification ECU (smart key ECU assembly) vehicle setting processing malfunction	CAN communication system Smart key system (for Entry Function) Smart key system (for Start Function) Certification ECU (smart key ECU assembly) Navigation receiver assembly

CAUTION / NOTICE / HINT

NOTICE:

Before replacing the certification ECU (smart key ECU assembly), refer to Registration (See page PROCEDURE ).

PROCEDURE

1.	CHECK CAN COMMUNICATION SYSTEM

(a) Use the Techstream to check if the CAN communication system is functioning normally (See page OK: ).

OK:

CAN communication DTCs are not output.

GO TO CAN COMMUNICATION SYSTEM

2.	CHECK SMART KEY SYSTEM (for Entry Function)

(a) Check if the smart key system (for Entry Function) is malfunctioning (See page HINT: ).

HINT:

Customization may not be possible depending on the malfunction in the smart key system (for Entry Function).

OK:

No malfunctions are present in the smart key system (for Entry Function).

GO TO SMART KEY SYSTEM (for Entry Function)

3.	CHECK SMART KEY SYSTEM (for Start Function)

(a) Check if the smart key system (for Start Function) is malfunctioning (See page HINT: ).

HINT:

Customization may not be possible depending on the malfunction in the smart key system (for Start Function).

OK:

No malfunctions are present in the smart key system (for Start Function).

GO TO SMART KEY SYSTEM (for Start Function)

4.	CHECK CUSTOMIZE ITEMS

(a) Make a note of the customizable items for each certification ECU (smart key ECU assembly) related system.

HINT:

The items shown as customizable via the navigation system vehicle customization screen can also be changed manually. In the following step, change the items manually.

(1) Check the customize parameters list for the smart key system (for Entry Function) related items that can be customized via the navigation system vehicle customization screen (See page (2) Check the customize parameters list for the smart key system (for Start Function) ).

(2) Check the customize parameters list for the smart key system (for Start Function) related items that can be customized via the navigation system vehicle customization screen (See page (b) Confirm that it is possible to manually change the settings of the customize ).

(b) Confirm that it is possible to manually change the settings of the customize parameters for each system that are available for customization via the navigation system vehicle customization screen.

OK:

The items available for customization via the navigation system vehicle customization screen can be customized successfully using the manual procedure.

REPLACE NAVIGATION RECEIVER ASSEMBLY

REPLACE CERTIFICATION ECU (SMART KEY ECU ASSEMBLY)

Main Body ECU Vehicle Information Reading/Writing Process Malfunction (B15F6)

DESCRIPTION This DTC is stored when items controlled by the main body ECU cannot be customized via the navigation system vehicle customization screen. HINT: The main body ECU controls the ite ...

XM Tuner Antenna Disconnected (B15FE,B15FF)

DESCRIPTION These DTCs are stored when a malfunction occurs in the antenna assembly with holder which is connected to the navigation receiver assembly assembly. DTC No. DTC D ...

Other materials:

System Diagram
SYSTEM DIAGRAM Communication Table Sender Receiver Signal Line ECM Millimeter Wave Radar Sensor Assembly Cruise control operation signal Accelerator pedal idle position signal Accel overr ...

Lost Communication with ECM (U0100,U0142,U0155)
DESCRIPTION DTC No. DTC Detecting Condition Trouble Area U0100 No communication with ECM CAN communication system ECM U0142 No communication with main body ECU ...

Disassembly
DISASSEMBLY PROCEDURE 1. INSPECT FRONT DRIVE SHAFT (a) Check whether there is no remarkable play in the outboard joint. (b) Check whether the inboard joint slides smoothly in the thrust direction. (c) Check whether there is no remarkable play in the radial direction of the inboard joint. ( ...