Dtc B2090 Driving Support System Malfunction
DESCRIPTION
INSPECTION PROCEDURE
CHECK FOR DTC (DYNAMIC RADAR CRUISE CONTROL SYSTEM)
CHECK FOR DTC (DRIVING SUPPORT ECU)
CHECK FOR DTC
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 or pre-crash safety system (Pre-Crash 2), the malfunction information is sent to the seat belt control ECU, which stores this DTC.When DTC B2090 is stored, other DTCs stored by the driving support ECU (dynamic radar cruise control system and Pre-Crash 2) are also stored.DTC Code
| DTC Detection Condition
| Trouble Area
|
B2090
| During the initial check, while the ignition switch is ON or while the pre-crash safety system is operating, the driving support ECU detects a malfunction in the dynamic radar cruise control system or pre-crash safety system (Pre-Crash 2) for 1 second or more.
| - Dynamic radar cruise control system
- Pre-crash safety system (Pre-Crash 2)
- Seat belt control ECU
|
INSPECTION PROCEDURE
- HINT:
- When clearing the DTCs, first clear the DTCs output from the driving support ECU, and then clear the DTCs output from the seat belt control ECU.
| 1.CHECK FOR DTC (DYNAMIC RADAR CRUISE CONTROL SYSTEM) |
Check for DTCs (LandCruiser RM0000044GY00FX.html).
- OK:
- Dynamic radar cruise control system DTCs are not output.
| 2.CHECK FOR DTC (DRIVING SUPPORT ECU) |
Check for DTCs (LandCruiser RM0000043K500GX.html).
- OK:
- DTCs for Pre-Crash 2 are not output.
Clear the DTCs (LandCruiser RM0000043K500GX.html).
Check for DTCs (LandCruiser RM0000043K500GX.html).
- OK:
- DTC B2090 is not output.