- CAN communication system
- Air conditioning system
- Air conditioning amplifier assembly
- Radio and display receiver assembly
| Last Modified: 04-05-2023 | 6.11:8.1.0 | Doc ID: RM1000000018F7R |
| Model Year Start: 2018 | Model: Sienna | Prod Date Range: [11/2017 - ] |
| Title: AUDIO / VIDEO: AUDIO AND VISUAL SYSTEM: B15F5; A/C ECU Vehicle Information Reading/Writing Processor Malfunction; 2018 - 2020 MY Sienna [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 audio and visual system vehicle customization screen.
|
DTC No. |
Detection Item |
DTC Detection Condition |
Trouble Area |
|---|---|---|---|
|
B15F5 |
Air Conditioner ECU Vehicle Information Reading/Writing Processor Malfunction |
Air conditioning amplifier assembly vehicle setting processing malfunction |
|
CAUTION / NOTICE / HINT
NOTICE:
-
Depending on the parts that are replaced during vehicle inspection or maintenance, performing initialization, registration or calibration may be needed. Refer to Precaution for Audio and Visual System.
Click here
![2018 - 2020 MY Sienna [11/2017 - ]; AUDIO / VIDEO: AUDIO AND VISUAL SYSTEM: PRECAUTION](/t3Portal/stylegraphics/info.gif)
-
When replacing the radio and display receiver assembly, always replace it with a new one. If a radio and display receiver assembly which was installed to another vehicle is used, the following may occurs:
- A communication malfunction DTC may be stored.
- The radio and display receiver assembly may not operate normally.
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 |
|
|
|
2. |
CHECK AIR CONDITIONING SYSTEM |
(a) Check if the air conditioning system is malfunctioning (See page
).
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 |
|
|
|
3. |
CHECK CUSTOMIZE ITEMS |
(a) Make a note of the customizable items for the air conditioning system.
HINT:
The items shown as customizable via the audio and visual 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 audio and visual system vehicle customization screen with the items on the Techstream, check the customize parameters list for the air conditioning system related items that can be customized via the audio and visual system vehicle customization screen.
Click here
(b) Using the Techstream, check that it is possible to change the settings of the customize parameters 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 Techstream.
| OK |
|
| NG |
|
|
|