DTC B2793: Transponder Chip Malfunction; DTC B2794: Unmatched Encryption Code; DTC B2797: Communication Malfunction No. 1; DTC B2798: Communication Malfunction No. 2: Description
- DTC B2793 is stored when a malfunction is found in the key during key code registration or a key code is not registered normally. Replace the key if key code registration cannot be performed normally and this DTC is output.
- DTC B2794 is stored when a key with an incomplete key code is inserted into the ignition key cylinder.
- DTC B2797 is stored when a key with a BCC malfunction is inserted into the ignition key cylinder.
- DTC B2798 is stored when a key is inserted into the ignition key cylinder but a communication error occurs between the key and transponder key ECU assembly.
| DTC Code |
DTC Detection Condition |
Trouble Area |
DTC Output Confirmation Operation |
| B2793 |
A transponder chip malfunction (1 trip detection logic*). |
- Key
- Transponder key ECU assembly
|
Insert the key into the ignition key cylinder. |
| B2794 |
A key with an incomplete key code is inserted into the ignition key cylinder (1 trip detection logic*). |
| B2797 |
A key with a BCC malfunction is inserted into the ignition key cylinder (1 trip detection logic*). |
| B2798 |
Key code identification cannot be completed within the specified time (1 trip detection logic*). |
- *: Only output while a malfunction is present.
VEHICLE CONDITION AND FAIL-SAFE OPERATION WHEN MALFUNCTION DETECTED
| Vehicle Condition when Malfunction Detected |
Fail-safe Operation When Malfunction Detected |
| Engine cannot be started |
- |
RELATED DATA LIST AND ACTIVE TEST
| DTC Code |
Data List and Active Test |
| B2793 |
Abnormal Status |
| B2794 |
Different Encrypt Code |
| B2797 |
BCC Malfunction |
| B2798 |
Frame Error |