Toyota Venza manuals

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

Toyota Venza 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 navigation 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
  • 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

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.


NG

GO TO CAN COMMUNICATION SYSTEM


OK

2.

CHECK SMART KEY SYSTEM

(a) for Entry Function:

Check if the smart key system is malfunctioning (See page ).


for Start Function:

Check if the smart key system is malfunctioning (See page ).


HINT:

Customization may not be possible depending on the malfunction in the smart key system.

OK:

No malfunctions are present in the smart key system.

(b) Proceed to the next step based on the check result.

Result

Proceed to

OK

A

NG (for Entry Function)

B

NG (for Start Function)

C


B

GO TO SMART KEY SYSTEM (for Entry Function)


C

GO TO SMART KEY SYSTEM (for Start Function)


A

3.

CHECK CUSTOMIZE ITEMS

(a) Make a note of the customizable items for the 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 using the Techstream. In the following step, the Techstream will be used.

(1) To match-up the items on the navigation system vehicle customization screen with the items on the Techstream, 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) To match-up the items on the navigation system vehicle customization screen with the items on the Techstream, 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) Using the Techstream, confirm that it is possible to change the settings of the customize parameters 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 Techstream.


OK

REPLACE NAVIGATION RECEIVER ASSEMBLY


NG

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 (multiplex network body ECU) cannot be customized via the navigation system vehicle customization screen. HINT: The m ...

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 ...

Other materials about Toyota Venza:

If you think something is wrong
If you notice any of the following symptoms, your vehicle probably needs adjustment or repair. Contact your Toyota dealer as soon as possible.  - Visible symptoms • Fluid leaks under the vehicle (Water dripping from the air conditioning after use i ...

Winter driving tips
Carry out the necessary preparations and inspections before driving the vehicle in winter. Always drive the vehicle in a manner appropriate to the prevailing weather conditions.  - Pre-winter preparations • Use fluids that are appropriate to the p ...

Taillight Relay Circuit
DESCRIPTION The main body ECU (driver side junction block assembly) controls the operation of the TAIL relay. WIRING DIAGRAM CAUTION / NOTICE / HINT NOTICE: Inspect the fuses for circuits related to this system before performing the following inspec ...

© 2016-2025 Copyright www.tovenza.com

0.1609