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:
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DESCRIPTION The air fuel ratio sensor (sensor 2) generates current that corresponds to the actual air fuel ratio. This sensor current is used to provide the ECM with feedback so that it can control the air fuel ratio. The ECM determines the deviation from the stoichiometric air fuel ratio level, and
Precaution
PRECAUTION
SENSOR EXPRESSIONS
(a) The descriptions for the blind spot monitor sensors differ
depending on the system. The expressions listed in the table below are used in this
Repair Manual.
Part Name
Actual Part Name
Blind spot monitor sensor LH (B)
