Toyota Corolla Cross: Lost Communication with Brake System Control Module "A" Missing Message (U012987,U023A87)
DESCRIPTION
|
DTC No. | Detection Item |
DTC Detection Condition | Trouble Area |
Warning Indicate | Test Mode / Check Mode |
|---|---|---|---|---|---|
|
U012987 | Lost Communication with Brake System Control Module "A" Missing Message |
Communication stop occurs between the airbag ECU assembly and Skid control ECU (brake actuator assembly) continuously for approximately 2 second or more. |
| Comes on |
Does not apply to test/check mode |
|
U023A87 | Lost Communication with Image Processing Module "A" Missing Message |
Communication stop occurs between the airbag ECU assembly and forward recognition camera continuously for approximately 10 second or more. |
| Comes on |
Does not apply to test/check mode |
PROCEDURE
| 1. |
CHECK DTC OUTPUT |
(a) Check for DTCs.
Body Electrical > SRS Airbag > Trouble Codes|
Result | Proceed to |
|---|---|
|
U012987 or U023A87 is output |
A |
| DTCs are not output |
B |
| None of the above conditions are met |
C |
| A |
.gif) | GO TO CAN COMMUNICATION SYSTEM for HEV Model: Click here for Gasoline Model: Click here
|
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| B |
| USE SIMULATION METHOD TO CHECK |
| C |
| GO TO DIAGNOSTIC TROUBLE CODE CHART |
READ NEXT:
SRS Warning Light Remains ON
DESCRIPTION The SRS warning light is located in the combination meter assembly.
When the SRS is normal, the SRS warning light comes on for approximately 6 seconds after the ignition switch is turned
SRS Warning Light does not Come ON
DESCRIPTION The SRS warning light is located in the combination meter assembly.
When the SRS is normal, the SRS warning light comes on for approximately 6 seconds after the ignition switch is turned
SEE MORE:
Sound cannot be Heard Sound Quality is Poor only when Replaying USB Storage
Device or "iPod"
WIRING DIAGRAM
CAUTION / NOTICE / HINT
NOTICE:
Depending on the parts that are replaced during vehicle inspection
or maintenance, performing initialization, registration or calibration may be needed.
Click here
PROCEDURE
1.
CHECK HARNESS AND CONNECTOR (RADIO AND DI
Diagnostic Trouble Code Chart
DIAGNOSTIC TROUBLE CODE CHART Air Conditioning System
DTC No. Detection Item
Memory Link
B13AA87 Lost Communication with Front Control Rear Air Outlet Damper Control Servo Motor LIN Missing Message
Memorized
B13AB7F Front Control Rear Air Outlet Damp
