Diagnostic Trouble Code Chart
WARNING: This page is about a different car, the 2002 Toyota MR2. However, it is still accessible from the selected car via links, so may be relevant.
Immobilizer System DTCs
| DTC No./ Detection Item | Trouble Area |
|---|---|
| B2795 Unmatched Key Code | |
| ..... | Key |
| ..... | Unregistered Key Inserted Before |
| B2796 No Communication In Immobilizer System | |
| ..... | Key |
| ..... | Transponder Key Amplifier |
| ..... | Wire Harness |
| ..... | ECM |
| B2797 Communication Malfunction No. 1 | |
| ..... | Wire Harness |
| ..... | Transponder Key Amplifier |
| ..... | Unregistered Key Inserted Before |
| ..... | ECM |
| B2798 Communication Malfunction No. 2 | |
| ..... | Key |
| ..... | Transponder Key Amplifier |
| ..... | Wire Harness |
| ..... | ECM |
NOTE:
To reduce the unnecessary exchange of ECM, check that a trouble occurs with the original ECM at the time of exchanging ECM and the problem will be solved with a new ECM.