- Dynamic radar cruise control system
- Driving support ECU
- Seat belt control ECU
| Last Modified: 04-05-2023 | 6.11:8.1.0 | Doc ID: RM100000000VJTH |
| Model Year Start: 2016 | Model: Sienna | Prod Date Range: [12/2015 - 11/2017] |
| Title: PRE-COLLISION: PRE-COLLISION SYSTEM: B2090; Driving Support System Malfunction; 2016 - 2017 MY Sienna [12/2015 - 11/2017] | ||
|
DTC |
B2090 |
Driving Support System Malfunction |
DESCRIPTION
The seat belt control ECU receives collision information from the driving support ECU and skid control ECU via CAN communication, and tightens the seat belt by operating the motor inside the front seat outer belt.
When the driving support ECU detects a malfunction in the dynamic radar cruise control system and pre-collision 2 system, the malfunction information is sent to the seat belt control ECU, which outputs this DTC.
When DTC B2090 is detected, other DTCs are also stored by the driving support ECU (dynamic radar cruise control system and pre-collision 2 system).
|
DTC No. |
DTC Detection Condition |
Trouble Area |
|---|---|---|
|
B2090 |
While initial check is running, the ignition switch to ON and the pre-collision system is operating, the driving support ECU detects a malfunction in the dynamic radar cruise control system or pre-collision 2 system for 1 second. |
|
CAUTION / NOTICE / HINT
HINT:
When clearing the DTCs, first clear the DTC output from the driving support ECU (Pre-Collision 2), and then clear the DTC output from the seat belt control ECU.
PROCEDURE
|
1. |
CHECK FOR DTC (DYNAMIC RADAR CRUISE CONTROL SYSTEM) |
(a) Check DTCs for dynamic radar cruise control system (See page
![2016 MY Sienna [12/2015 - 08/2016]; CRUISE CONTROL: DYNAMIC RADAR CRUISE CONTROL SYSTEM: DTC CHECK / CLEAR](/t3Portal/stylegraphics/info.gif)
).
OK:
Dynamic radar cruise control system DTCs are not output.
| NG |
|
GO TO DYNAMIC RADAR CRUISE CONTROL SYSTEM (See page
|
|
|
2. |
CHECK FOR DTC (PRE-COLLISION 2 SYSTEM) |
(a) Using the Techstream, enter the following menus: Body Electrical / Pre-Collision 2 / Trouble Codes.
(b) Check for DTCs (See page
).
OK:
"Pre-Collision 2" DTC is not output.
| NG |
|
|
|
3. |
CHECK FOR DTC (PRE-COLLISION SYSTEM) |
(a) Using the Techstream, enter the following menus: Body Electrical / Pre-Collision / Trouble Codes.
(b) Clear the DTCs (See page
).
(c) Check for DTCs.
OK:
DTC B2090 is not output.
| OK |
|
USE SIMULATION METHOD TO CHECK (SYMPTOMS SIMULATION) (See page
|
| NG |
|
|
|