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 (driver side junction block assembly) and blind spot monitor sensor do not match. |
|
CAUTION / NOTICE / HINT
NOTICE:
When checking for DTCs, make sure that the blind spot monitor main switch assembly (warning canceling switch assembly) is on.
PROCEDURE
1. |
CONFIRM PART NUMBER (MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU)) |
(a) Check the main body ECU (multiplex network body ECU) part number.
(1) Check if the part number of the main body ECU (multiplex network body ECU) installed on the vehicle is correct.
OK:
The part number is correct.
NG | ![]() |
REPLACE MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU) |
|
2. |
CHECK DTC |
(a) Clear the DTCs (See page ).
(b) Recheck for DTCs and check if the same DTC is output again.
Result
Result |
Proceed to |
---|---|
No DTC is output |
A |
DTC is output from the blind spot monitor sensor LH (master) |
B |
DTC is output from the blind spot monitor sensor RH (slave) |
C |
A | ![]() |
USE SIMULATION METHOD TO CHECK |
B | ![]() |
REPLACE BLIND SPOT MONITOR SENSOR LH |
C | ![]() |
REPLACE BLIND SPOT MONITOR SENSOR RH |
Removal
REMOVAL
PROCEDURE
1. REMOVE TRANSMISSION INSULATOR RH (for 2GR-FKS)
2. REMOVE TRANSMISSION INSULATOR RH (for 2TR-FE)
3. SEPARATE WATER BY-PASS PIPE (for 2GR-FKS)
(a) Remove the 2 bolts to separate the water by-pass pipe from the automatic
transmission assembly.
...
System Diagram
SYSTEM DIAGRAM
Communication Table
Sender
Receiver
Signal
Communication Method
Airbag sensor assembly
Main body ECU
Front seat inner belt assembly LH buckle switch
CAN
Combination mete ...
Open or Short in Front Speed Sensor RH Circuit (C1405,C1406)
DESCRIPTION
Refer to DTCs C1401 and C1402 (See page ).
DTC Code
DTC Detection Condition
Trouble Area
C1405
C1406
Either condition is met:
An open in the speed sensor signal circuit continues for 0.5
seconds or mor ...