Toyota Camry (XV70): Software Incompatibility with Body Control Module "B" (U1331)
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.
Blind Spot Monitor Master|
DTC No. | Detection Item |
DTC Detection Condition | Trouble Area |
|---|---|---|---|
|
U1331 | Software Incompatibility with Body Control Module "B" |
Destination information of the main body ECU and blind spot monitor sensor do not match |
|
|
DTC No. | Detection Item |
DTC Detection Condition | Trouble Area |
|---|---|---|---|
|
U1331 | Software Incompatibility with Body Control Module "B" |
Destination information of the main body ECU and blind spot monitor sensor do not match |
|
CAUTION / NOTICE / HINT
NOTICE:
- When checking for DTCs, make sure that the blind spot monitor system is on.
- Before replacing the main body ECU (multiplex network body ECU), refer to Registration.
w/ Smart Key System: Click here
.gif)
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 | .gif) | REPLACE MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU)
|
|
.gif)
| 2. |
CHECK DTC |
(a) Clear the DTCs.
Body Electrical > Blind Spot Monitor Master > Clear DTCs Body Electrical > Blind Spot Monitor Slave > Clear DTCs(b) Recheck for DTCs and check if the same DTC is output again.
Body Electrical > Blind Spot Monitor Master > Trouble Codes Body Electrical > Blind Spot Monitor Slave > Trouble Codes|
Result | Proceed to |
|---|---|
|
No DTCs are 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
|
| B |
| REPLACE BLIND SPOT MONITOR SENSOR RH
|
| C |
| REPLACE BLIND SPOT MONITOR SENSOR LH
|
READ NEXT:
Buzzer does not Sound
WIRING DIAGRAM
CAUTION / NOTICE / HINT
NOTICE:
When checking for DTCs, make sure that the blind spot monitor system is turned on.
Inspect the fuses for circuits related to this system be
Power Source Circuit
DESCRIPTION This circuit provides power to operate the blind spot monitor sensor. WIRING DIAGRAM
CAUTION / NOTICE / HINT
NOTICE: Inspect the fuses for circuits related to this system before perfo
Clearance Warning Buzzer
ComponentsCOMPONENTS ILLUSTRATION
*A for 7 Inch Display
*B for 9 Inch Display
*1 CENTER INSTRUMENT CLUSTER FINISH PANEL ASSEMBLY
*2 CENTER INSTRUMENT CLUSTER FINI
SEE MORE:
Left Rear Wheel Speed Sensor Signal Stuck Low (C050C23)
DESCRIPTION Refer to DTC C050C12 Click here
DTC No. Detection Item
DTC Detection Condition Trouble Area
C050C23 Left Rear Wheel Speed Sensor Signal Stuck Low
When the vehicle is driven from 0 km/h to 12 km/h (0 mph to 7 mph), the wheel speed is 1.8 km/h (1.1 m
Installation
INSTALLATION PROCEDURE 1. INSTALL FUEL SUCTION TUBE WITH PUMP AND GAUGE ASSEMBLY
(a) Install a new fuel suction tube set gasket to the fuel tank assembly.
(b) Set the fuel suction tube with pump and gauge assembly to the fuel tank assembly.
NOTICE: Be careful not to bend the arm of the fuel se
