DTC Code | DTC Name |
---|---|
U1331 | Software Incompatibility with Body Control Module "B" |
DESCRIPTION
This DTC is stored when the destination information of the main body ECU (multiplex network body ECU) does not match that of the blind spot monitor sensors.
DTC Code | DTC Detection Condition | Trouble Area |
---|---|---|
U1331 | Destination information of the main body ECU (multiplex network body ECU) and blind spot monitor sensor do not match. |
|
CAUTION / NOTICE / HINT
Note
When checking for DTCs, make sure that the blind spot monitor system is on.
Recognition code registration is necessary when replacing the main body ECU (multiplex network body ECU).
If the main body ECU (multiplex network body ECU) is replaced, refer to Service Bulletin.
PROCEDURE
CONFIRM PART NUMBER (MAIN BODY ECU [MULTIPLEX NETWORK BODY ECU])
Check the main body ECU (multiplex network body ECU) part number.
Check if the part number of the main body ECU (multiplex network body ECU) installed on the vehicle is correct.
OK |
---|
The parts number is correct. |
NG |
REPLACE MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU) Click here |
OK |
CHECK DTC
Clear the DTCs Click here.
Recheck for DTCs and check if the same DTC is output again Click here.
Result | Proceed to |
---|---|
No DTC is output | A |
DTC U1331 is output ("Blind Spot Monitor Master") | B |
DTC U1331 is output ("Blind Spot Monitor Slave") | C |
A |
USE SIMULATION METHOD TO CHECK Click here |
B |
REPLACE BLIND SPOT MONITOR SENSOR RH Click here |
C |
REPLACE BLIND SPOT MONITOR SENSOR LH Click here |