Toyota Corolla Cross: ID-BOX Component Internal Failure (B278D96)
DESCRIPTION
When the certification ECU (smart key ECU assembly) detects an input signal indicating that the vehicle is equipped with an ID code box even though the ID code box is not registered, the certification ECU (smart key ECU assembly) stores this DTC.
|
DTC No. | Detection Item |
DTC Detection Condition | Trouble Area |
Note |
|---|---|---|---|---|
| B278D96 |
ID-BOX Component Internal Failure |
One of the following conditions is met:
| Misconnection of the ID code box |
DTC output confirmation operation:
|
|
Vehicle Condition when Malfunction Detected |
Fail-safe Operation when Malfunction Detected |
|---|---|
|
Key registration will be prohibited |
- |
|
DTC No. | Data List and Active Test |
|---|---|
|
B278D96 | - |
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 Model Code "KEY REGIST" under manual mode and enter the following menus: Body Electrical / Start Key(CAN). 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.
- The smart key system (for Start Function) uses the LIN communication system and CAN communication system. Inspect the communication function by following How to Proceed with Troubleshooting. Troubleshoot the smart key system (for Start Function) after confirming that the communication systems are functioning properly.
Click here
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- Before replacing the certification ECU (smart key ECU assembly), refer to Registration.
Click here
- After repair, confirm that no DTCs are output by performing "DTC Output Confirmation Operation."
PROCEDURE
|
1. | CLEAR DTC |
(a) Clear the DTCs.
Body Electrical > Smart Key > Clear DTCs
|
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| 2. |
CHECK DTC OUTPUT |
(a) Check for DTCs.
Body Electrical > Smart Key > Trouble CodesHINT:
Before checking for DTCs, perform the "DTC Output Confirmation Operation" procedure.
OK:
DTC B278D96 is not output.
| OK | .gif) | END |
| NG | | REPLACE CERTIFICATION ECU (SMART KEY ECU ASSEMBLY) |
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Reassembly
REASSEMBLY CAUTION / NOTICE / HINT COMPONENTS (REASSEMBLY)
Procedure Part Name Code
1 CONSOLE COMPARTMENT DOOR LOCK SUB-ASSEMBLY
58908A -
- -
2 CONSOLE COMPARTMENT DOOR CUSHION
58959B -
- -
3 REAR CONSOLE BOX
DCM Communication Stop Mode
DESCRIPTION
Detection Item
Symptom
Trouble Area
DCM Communication Stop Mode
Communication stop for "DCM" is indicated on the "Communication Bus Check"
screen of the GTS.
Click here
DCM (telemat
