Last Modified: 05-13-2024 |
6.11:8.1.0 |
Doc ID: RM1000000026ZEF |
Model Year Start: 2023 |
Model: GR Corolla |
Prod Date Range: [09/2022 -
] |
Title: PARK ASSIST / MONITORING: BLIND SPOT MONITOR SYSTEM (w/ Safe Exit Assist Function): U023387; Lost Communication with Side Obstacle Detection Control Module "B" Missing Message; 2023 - 2025 MY Corolla Corolla Hatchback Corolla HV GR Corolla [09/2022 - ] |
DTC
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U023387
|
Lost Communication with Side Obstacle Detection Control Module "B" Missing Message
|
DESCRIPTION
This DTC is stored when the blind spot monitor sensor RH (A) judges that there is a communication problem with the blind spot monitor sensor LH (B).
DTC No.
|
Detection Item
|
DTC Detection Condition
|
Trouble Area
|
DTC Output from
|
Priority
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U023387
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Lost Communication with Side Obstacle Detection Control Module "B" Missing Message
|
The blind spot monitor sensor RH (A) cannot receive signals from the blind spot monitor sensor LH (B)
|
-
Blind spot monitor sensor LH (B)
-
Blind spot monitor sensor RH (A)
|
Blind Spot Monitor "A"
|
A
|
CAUTION / NOTICE / HINT
NOTICE:
When checking for DTCs, make sure that the blind spot monitor system is turned on.
HINT:
-
Operating the ignition switch, any other switches or a door triggers related ECU and sensor communication on the CAN. This communication will cause the resistance value to change.
-
Even after DTCs are cleared, if a DTC is stored again after driving the vehicle for a while, the malfunction may be occurring due to vibration of the vehicle. In such a case, wiggling the ECUs or wire harness while performing the inspection below may help determine the cause of the malfunction.
PROCEDURE
(a) Check for DTCs.
Body Electrical > Blind Spot Monitor "A" > Trouble Codes
Result
|
Proceed to
|
U023387 is output
|
A
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DTCs are not output
|
B
|
A
|
|
|
2.
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REPLACE BLIND SPOT MONITOR SENSOR LH (B)
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HINT:
Click here
NEXT
|
|
|
(a) Check for DTCs.
Body Electrical > Blind Spot Monitor "A" > Trouble Codes
Result
|
Proceed to
|
U023387 is output
|
A
|
DTCs are not output
|
B
|
B |
|
END (BLIND SPOT MONITOR SENSOR LH (B) WAS DEFECTIVE)
|
|