Toyota Corolla Cross: Lost Communication With ECM/PCM "A" Missing Message (U010087,U012987,U014087,U015587,U023087,U111787)
DESCRIPTION
These DTCs are stored when there is a CAN communication malfunction between the certification ECU (smart key ECU assembly and ECM, No. 2 skid control ECU (brake actuator assembly), main body ECU (multiplex network body ECU), combination meter assembly, air conditioning amplifier assembly, multiplex network door ECU, ECM or option connector (bus buffer ECU).
|
DTC No. | Detection Item |
DTC Detection Condition | Trouble Area |
Note |
|---|---|---|---|---|
| U010087 |
Lost Communication With ECM/PCM "A" Missing Message |
CAN communication malfunction between certification ECU (smart key ECU assembly) and ECM (1-trip detection logic*) |
ECM | DTC Output Confirmation Operation:
|
| U012987 |
Lost Communication with Brake System Control Module "A" Missing Message |
CAN communication malfunction between certification ECU (smart key ECU assembly) and skid control ECU (brake actuator assembly) (1-trip detection logic*) |
Skid control ECU (brake actuator assembly) | DTC Output Confirmation Operation:
|
| U014087 |
Lost Communication with Body Control Module Missing Message |
CAN communication malfunction between certification ECU (smart key ECU assembly) and main body ECU (multiplex network body ECU) (1-trip detection logic*) |
Main body ECU (multiplex network body ECU) | DTC Output Confirmation Operation:
|
| U015587 |
Lost Communication with Instrument Panel Cluster (IPC) Control Module Missing Message |
CAN communication malfunction between certification ECU (smart key ECU assembly) and combination meter assembly (1-trip detection logic*) |
Combination meter assembly | DTC Output Confirmation Operation:
|
| U023087 |
Lost Communication with Rear Gate Module Missing Message |
CAN communication malfunction between certification ECU (smart key ECU assembly) and multiplex network door ECU (1-trip detection logic*) |
Multiplex network door ECU | DTC Output Confirmation Operation:
|
| U111787 |
Lost Communication with Accessory Gateway Missing Message |
CAN communication malfunction between the certification ECU (smart key ECU assembly) and the option connector (bus buffer ECU) for approximately 10 seconds or more. |
Option connector (bus buffer ECU) | DTC Output Confirmation Operation:
|
- *: Only detected while a malfunction is present.
|
DTC Code | Vehicle Condition when Malfunction Detected |
Fail-safe Function when Malfunction Detected |
|---|---|---|
|
U010087 | There is no effect on vehicle behavior. |
- |
| U012987 |
There is no effect on vehicle behavior. |
- |
| U014087 |
| - |
|
U015587 | The warning (meter buzzer) does not sound and no warning messages displayed on the multi-information display. |
- |
| U023087 |
Power back door system does not operate. |
- |
| U111787 |
The engine cannot be started using the wireless remote control function. |
- |
|
DTC No. | Data List and Active Test |
|---|---|
|
U010087 U012987 U014087 U015587 U023087 U111787 | - |
CAUTION / NOTICE / HINT
NOTICE:
- When using the GTS with the ignition switch off, connect the GTS to the DLC3 and turn a courtesy light switch on and off at intervals of 1.5 seconds or less until communication between the GTS and the vehicle begins. Then select the vehicle type under manual mode and enter the following menus: Body Electrical / Smart Key. While using the GTS, periodically turn a courtesy light switch on and off at intervals of 1.5 seconds or less to maintain communication between the GTS and the vehicle.
- After repair, confirm that no DTCs are output by performing "DTC Output Confirmation Operation".
PROCEDURE
|
1. | CHECK FOR DTC |
(a) Check for DTCs and note any DTCs that are output.
| NEXT | .gif) | GO TO CAN COMMUNICATION SYSTEM (HOW TO PROCEED WITH TROUBLESHOOTING) |
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SEE MORE:
Removal
REMOVAL CAUTION / NOTICE / HINT COMPONENTS (REMOVAL)
Procedure Part Name Code
1 REAR CENTER SEAT OUTER BELT ASSEMBLY
73350C -
- -
2 BENCH TYPE REAR SEAT CUSHION ASSEMBLY
-
- -
3 REAR SEAT C
Terminals Of Ecm
TERMINALS OF ECM
HINT: The standard voltage, resistance and waveform between each pair of the ECM terminals are shown in the table below. The appropriate conditions for checking each pair of the terminals is also indicated. The result of checks should be compared with the standard voltage, resist
