Toyota Venza: Certification ECU Vehicle Information Reading/Writing Process Malfunction (B15F7)

Toyota Venza Service Manual / Audio / Video / Audio And Visual 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 audio and visual 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) Radio and display receiver assembly

CAUTION / NOTICE / HINT

NOTICE:

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

PROCEDURE

1.	CHECK CAN COMMUNICATION SYSTEM

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

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:

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:

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 audio and visual 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 audio and visual system vehicle customization screen (See page ).

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

(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 audio and visual system vehicle customization screen.

OK:

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

REPLACE RADIO AND DISPLAY RECEIVER ASSEMBLY

REPLACE CERTIFICATION ECU (SMART KEY ECU ASSEMBLY)

XM Tuner Antenna Disconnected (B15FE,B15FF)

DESCRIPTION These DTCs are stored when a malfunction occurs in the roof antenna assembly which is connected to the stereo component tuner assembly. DTC No. DTC Detection Cond ...

A/C ECU Vehicle Information Reading/Writing Processor Malfunction (B15F5)

DESCRIPTION This DTC is stored when items controlled by the air conditioning amplifier assembly cannot be customized via the audio and visual system vehicle customization screen. HINT: The air co ...

Other materials about Toyota Venza:

Data List / Active Test
DATA LIST / ACTIVE TEST 1. DATA LIST HINT: Using the Techstream to read the Data List allows the values or states of switches, sensors, actuators and other items to be read without removing any parts. This non-intrusive inspection can be very useful bec ...

Back Door Entry Lock Function does not Operate
DESCRIPTION If the back door entry lock function does not operate but the back door open function operates, the communication between the vehicle and key is normal. As a faulty part, the entry lock switch circuit (from the back door opener switch assembly ...

Passenger Side Buckle Switch Circuit Malfunction (B1771)
DESCRIPTION The passenger side buckle switch circuit consists of the occupant classification ECU and front seat inner belt assembly RH. DTC B1771 is recorded when a malfunction is detected in the passenger side buckle switch circuit. Troubleshoot DTC B1 ...