Last Modified: 04-05-2023 6.11:8.1.0 Doc ID: RM100000000VJ4R
Model Year Start: 2016 Model: Sienna Prod Date Range: [12/2015 - 11/2017]
Title: AUDIO / VIDEO: AUDIO AND VISUAL SYSTEM: B15F5; A/C ECU Vehicle Information Reading/Writing Processor Malfunction; 2016 - 2017 MY Sienna [12/2015 - 11/2017]

DTC

B15F5

A/C ECU Vehicle Information Reading/Writing Processor Malfunction

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 conditioning amplifier assembly controls the air conditioning system related items that are customizable via the multi-display screen.

DTC No.

DTC Detection Condition

Trouble Area

B15F5

Air conditioning amplifier assembly vehicle setting processing error.

  • CAN communication system
  • Air conditioning system
  • Air conditioning amplifier assembly
  • Radio and display receiver assembly

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 AIR CONDITIONING SYSTEM

(a) Check if the air conditioning system is malfunctioning (See page 2016 MY Sienna [12/2015 - 08/2016]; HEATING / AIR CONDITIONING: AIR CONDITIONING SYSTEM: SYSTEM DESCRIPTION 2017 - 2020 MY Sienna [08/2016 -        ]; HEATING / AIR CONDITIONING: AIR CONDITIONING SYSTEM: SYSTEM DESCRIPTION ).

HINT:

Customization may not be possible depending on the malfunction in the air conditioning system.

OK:

No malfunctions are present in the air conditioning system.

NG

GO TO AIR CONDITIONING SYSTEM

OK

3.

CHECK CUSTOMIZE ITEMS

(a) Display the "Climate Settings" screen.

(b) Make a note of the customizable items for the air conditioning system.

HINT:

These air conditioning system 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 air conditioning system related items that can be customized via the multi-display screen (See page 2016 MY Sienna [12/2015 - 08/2016]; HEATING / AIR CONDITIONING: AIR CONDITIONING SYSTEM: CUSTOMIZE PARAMETERS 2017 - 2020 MY Sienna [08/2016 -        ]; HEATING / AIR CONDITIONING: AIR CONDITIONING SYSTEM: CUSTOMIZE PARAMETERS ).

(c) Using the Techstream, confirm that it is possible to change the settings of the air conditioning system 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 AIR CONDITIONING AMPLIFIER ASSEMBLY