Last Modified: 04-05-2023 6.11:8.1.0 Doc ID: RM100000000VJ4T
Model Year Start: 2016 Model: Sienna Prod Date Range: [12/2015 - 11/2017]
Title: AUDIO / VIDEO: AUDIO AND VISUAL SYSTEM: B15F7; Certification ECU Vehicle Information Reading/Writing Process Malfunction; 2016 - 2017 MY Sienna [12/2015 - 11/2017]

DTC

B15F7

Certification ECU Vehicle Information Reading/Writing Process Malfunction

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 (for Entry Function) related items that are customizable via the multi-display screen.

DTC No.

DTC Detection Condition

Trouble Area

B15F7

Certification ECU (smart key ECU assembly) vehicle setting processing error.

  • CAN communication system
  • Smart key system (for Entry Function)
  • Certification ECU (smart key ECU assembly)
  • Radio and display receiver assembly

CAUTION / NOTICE / HINT

NOTICE:

If the certification ECU (smart key ECU assembly) is replaced, register the key (See page 2016 MY Sienna [12/2015 - 08/2016]; THEFT DETERRENT / KEYLESS ENTRY: ENGINE IMMOBILISER SYSTEM(w/ Smart Key System): REGISTRATION 2017 - 2020 MY Sienna [08/2016 -        ]; THEFT DETERRENT / KEYLESS ENTRY: ENGINE IMMOBILISER SYSTEM(w/ Smart Key System): REGISTRATION ).

PROCEDURE

1.

CHECK CAN COMMUNICATION SYSTEM

(a) Use the Techstream to check if the CAN communication system is functioning normally (See page 2016 MY Sienna [12/2015 - 08/2016]; NETWORKING: CAN COMMUNICATION SYSTEM: DIAGNOSTIC TROUBLE CODE CHART 2017 MY Sienna [08/2016 - 11/2017]; NETWORKING: CAN COMMUNICATION SYSTEM: DIAGNOSTIC TROUBLE CODE CHART ).

OK:

CAN communication DTCs are not output.

NG

GO TO CAN COMMUNICATION SYSTEM

(See page 2016 MY Sienna [12/2015 - 08/2016]; NETWORKING: CAN COMMUNICATION SYSTEM: HOW TO PROCEED WITH TROUBLESHOOTING 2017 MY Sienna [08/2016 - 11/2017]; NETWORKING: CAN COMMUNICATION SYSTEM: HOW TO PROCEED WITH TROUBLESHOOTING )

OK

2.

CHECK SMART KEY SYSTEM (FOR ENTRY FUNCTION)

(a) Check if the smart key system (for Entry Function) is malfunctioning (See page 2016 - 2020 MY Sienna [12/2015 -        ]; THEFT DETERRENT / KEYLESS ENTRY: SMART KEY SYSTEM(for Entry Function): OPERATION CHECK ).

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).

NG

GO TO SMART KEY SYSTEM (FOR ENTRY FUNCTION)

OK

3.

CHECK CUSTOMIZE ITEMS

(a) Display the "Door Lock Settings" screen.

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

HINT:

These smart key system (for Entry Function) items shown as customizable via the multi-display vehicle customization screen can also be changed using the Techstream. In the following step, use the Techstream.

(1) To match-up the items on the multi-display 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 multi-display screen (See page 2016 - 2020 MY Sienna [12/2015 -        ]; THEFT DETERRENT / KEYLESS ENTRY: SMART KEY SYSTEM(for Entry Function): CUSTOMIZE PARAMETERS ).

(c) Using the Techstream, confirm that it is possible to change the settings of the smart key system (for Entry Function) related customize parameters that are shown as customizable via the multi-display screen.

OK:

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

OK

REPLACE RADIO AND DISPLAY RECEIVER ASSEMBLY

NG

REPLACE CERTIFICATION ECU (SMART KEY ECU ASSEMBLY)