Toyota Corolla Cross: Lost Communication With Brake System Control Module Missing Message (U012987,U014087,U029387)
DESCRIPTION
These DTCs are stored when the CAN communication system is malfunctioning.
|
DTC No. | Detection Item |
DTC Detection Condition | Trouble Area |
DTC Output from | Priority |
|---|---|---|---|---|---|
|
U012987 | Lost Communication With Brake System Control Module Missing Message |
The vehicle approaching speaker controller does not receive data from the skid control ECU (brake actuator assembly) for approximately 10 seconds or more. |
| Acoustic Vehicle Alerting System |
A |
| U014087 |
Lost Communication with Body Control Module Missing Message |
The vehicle approaching speaker controller does not receive data from the main body ECU (multiplex network body ECU) for approximately 10 seconds or more. |
| Acoustic Vehicle Alerting System |
A |
| U029387 |
Lost Communication with Hybrid/EV Powertrain Control Module Missing Message |
The vehicle approaching speaker controller does not receive data from the hybrid vehicle control ECU for approximately 10 seconds or more. |
| Acoustic Vehicle Alerting System |
A |
PROCEDURE
| 1. |
CHECK FOR DTC |
(a) Check for DTCs.
Body Electrical > Acoustic Vehicle Alerting System > Trouble CodesHINT:
When DTCs indicating a CAN communication system malfunction are output, perform troubleshooting for the CAN communication system before the acoustic vehicle alerting system.
| NEXT | .gif) | GO TO CAN COMMUNICATION SYSTEM |
READ NEXT:
Software Incompatibility with Body Control Module Invalid/Incompatible Software Component (U032257)
DESCRIPTION The vehicle approaching speaker controller receives vehicle information from the main body ECU (multiplex network body ECU) via CAN communication.
This DTC is stored when the vehicle info
There is No Sound Made
DESCRIPTION Based on signals received from each ECU, the vehicle approaching speaker controller outputs warning sounds through the vehicle approaching speaker assembly. WIRING DIAGRAM
CAUTION / NOTI
SEE MORE:
Disassembly
DISASSEMBLY CAUTION / NOTICE / HINT COMPONENTS (DISASSEMBLY)
Procedure Part Name Code
1 SLIDING ROOF DRIVE GEAR SUB-ASSEMBLY
63260A -
- -
2 SLIDING ROOF PIECE SUB-ASSEMBLY
- -
- -
3 SUNSHADE TRIM SUB-ASSEMBLY
63306
Initialization
INITIALIZATION
NOTICE:
If Continuously Variable Transaxle (CVT) parts are replaced, perform the
following as necessary: Parts Replacement Compensation Table
*1: When replacing with a new TCM
*2: When replacing with a TCM which was installed to another vehicle
