DESCRIPTION
When an internal malfunction occurs in the ID code box (immobiliser code ECU), the certification ECU (smart key ECU assembly) stores this DTC.
DTC No. | Detection Item | DTC Detection Condition | Trouble Area | Note |
---|---|---|---|---|
B2790 | ID BOX EEPROM Malfunction | An internal malfunction occurs in the ID code box (immobiliser code ECU) (EEPROM access malfunction). (1 trip detection logic*) |
| DTC output confirmation operation:
|
Vehicle Condition when Malfunction Detected | Fail-safe Operation when Malfunction Detected |
---|---|
| - |
DTC No. | Data List and Active Test |
---|---|
B2790 | - |
CAUTION / NOTICE / HINT
NOTICE:
Click here
PROCEDURE
1. | REPLACE ID CODE BOX (IMMOBILISER CODE ECU) |
(a) Replace the ID code box (immobiliser code ECU) with a new one.
Click here
|
2. | CLEAR DTC |
(a) Clear the DTCs.
Body Electrical > Smart Access > Clear DTCs
|
3. | REGISTER RECOGNITION CODE |
(a) Register the recognition code to the ECUs.
Click here
|
4. | REGISTER ECU COMMUNICATION ID |
(a) Register the ECU communication ID codes.
Click here
|
5. | CHECK FOR DTC |
(a) Perform "DTC Output Confirmation Operation" procedure.
(b) Check for DTCs.
Body Electrical > Smart Access > Trouble CodesOK:
DTC B2790 is not output.
OK | ![]() | END (ID CODE BOX (IMMOBILISER CODE ECU) WAS DEFECTIVE) |
NG | ![]() | REPLACE CERTIFICATION ECU (SMART KEY ECU ASSEMBLY) |
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