PRE-CRASH SAFETY SYSTEM, Diagnostic DTC:B2090
| DTC Code | DTC Name |
|---|---|
| B2090 | Driving Support System Malfunction |
DESCRIPTION
The seat belt control ECU receives crash 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 No. |
Detection Item |
DTC Detection Condition |
Trouble Area |
DTC Output from |
|---|---|---|---|---|
B2090 |
Driving Support System Malfunction |
During the initial check, while the engine switch on (IG) 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. |
|
Seat Belt Control ECU (Pre-Crash) |
CAUTION / NOTICE / 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.
PROCEDURE
CHECK FOR DTC (DYNAMIC RADAR CRUISE CONTROL SYSTEM)
Check for DTCs.
Body Electrical > Pre-Crash > Trouble Codes
OK
Dynamic radar cruise control system DTCs are not output.
Result
Result
OK
NG
CHECK FOR DTC (PRE-CRASH SAFETY SYSTEM)
Check for DTCs.
Body Electrical > Pre-Crash > Trouble Codes
OK
DTCs for Pre-Crash 2 are not output.
Result
Result
OK
NG
CHECK FOR DTC
Clear the DTCs.
Body Electrical > Pre-Crash > Clear DTCs
Check for DTCs.
Body Electrical > Pre-Crash > Trouble Codes
OK
DTC B2090 is not output.
Result
Result
OK
NG