Toyota Corolla Cross: Software Incompatibility with Body Control Module Not Programmed (U032251,U032257)
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 No. |
Detection Item |
DTC Detection Condition |
Trouble Area |
|---|---|---|---|
|
U032251 |
Software Incompatibility with Body Control Module Not Programmed |
Destination information of the main body ECU and blind spot monitor sensor do not match |
|
|
U032257 |
Software Incompatibility with Body Control Module Invalid/Incompatible Software Component |
Destination information of the main body ECU and blind spot monitor sensor do not match |
|
|
DTC No. |
Detection Item |
DTC Detection Condition |
Trouble Area |
|---|---|---|---|
|
U032251 |
Software Incompatibility with Body Control Module Not Programmed |
Destination information of the main body ECU and blind spot monitor sensor do not match |
|
|
U032257 |
Software Incompatibility with Body Control Module Invalid/Incompatible Software Component |
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 turned on.
- Before replacing the main body ECU (multiplex network body ECU), refer to the Service Bulletin.
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 to the vehicle is correct.
OK:
The part number is correct.
| NG | .gif)
|
REPLACE MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU)
|
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|
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|
2. |
CHECK DTC |
(a) Recheck for DTCs and check if the same DTC is output again.
Body Electrical > Blind Spot Monitor "B" > Trouble Codes|
Result |
Proceed to |
|---|---|
|
DTCs are not output |
A |
|
U032251 or U032257 is output |
B |
|
None of the above conditions are met |
C |
| B |
|
REPLACE BLIND SPOT MONITOR SENSOR LH (B)
|
| C |
|
GO TO DTC CHART |
|
|
3. |
CHECK DTC |
(a) Recheck for DTCs and check if the same DTC is output again.
Body Electrical > Blind Spot Monitor "A" > Trouble Codes|
Result |
Proceed to |
|---|---|
|
DTCs are not output |
A |
|
U032251 or U032257 is output |
B |
|
None of the above conditions are met |
C |
| A |
|
USE SIMULATION METHOD TO CHECK |
| B |
|
REPLACE BLIND SPOT MONITOR SENSOR RH (A)
|
| C |
|
REPLACE MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU)
|
READ NEXT:
Power Source Circuit
DESCRIPTION
This circuit provides power to operate the blind spot monitor
sensor.
WIRING DIAGRAM
CAUTION / NOTICE / HINT
HINT:
Inspect the fuses for circuits related to this system before per
Removal
REMOVAL
CAUTION / NOTICE / HINT
COMPONENTS (REMOVAL)
Procedure
Part Name Code
1
INSTRUMENT PANEL SAFETY PAD ASSEMBLY
SEE MORE:
Correct use of the seat
belts
Extend the shoulder belt so
that it comes fully over the
shoulder, but does not come
into contact with the neck or
slide off the shoulder.
Position the lap belt as low as
possible over the hips.
Adjust the position of the
seatback. Sit up straight and
well back in the seat.
Do not twist
Taillight Relay Circuit
DESCRIPTION The main body ECU (multiplex network body ECU) controls the taillight and license plate light. WIRING DIAGRAM
for LED Type Parking Light
for Bulb Type Parking Light
CAUTION / NOTICE / HINT
NOTICE:
First perform the communication function inspections in How to Proceed with Trou
