Up to 08/2009

THEFT DETERRENT / KEYLESS ENTRY: ENGINE IMMOBILISER SYSTEM: B2790: ID BOX EEPROM Malfunction
B2790 - ID BOX EEPROM Malfunction

DESCRIPTION

This DTC is output when the ID code box (immobiliser code ECU) detects an internal malfunction.





INSPECTION PROCEDURE

NOTICE:
* If the certification ECU (smart key ECU assembly) is replaced, register the key Engine Immobilizer System.
* If the ID code box (immobiliser code ECU) is replaced, register the ECU code and ECU communication ID Engine Immobilizer System.
PROCEDURE

1. REPLACE ID CODE BOX (IMMOBILISER CODE ECU)

(a) Replace the ID code box (immobiliser code ECU) Removal.

NEXT -- Continue to next step.

2. ECU CODE REGISTRATION

(a) Register the ECU code Engine Immobilizer System.

NEXT -- Continue to next step.

3. ECU COMMUNICATION ID REGISTRATION

(a) Register the ECU communication ID Engine Immobilizer System.

NEXT -- Continue to next step.

4. CHECK DTC OUTPUT

(a) Clear the DTCs Engine Immobiliser System.

(b) Recheck for DTCs Engine Immobiliser System.

OK:

DTC B2790 is not output.

NG -- REPLACE CERTIFICATION ECU (SMART KEY ECU ASSEMBLY) Removal

OK -- END (ID CODE BOX (IMMOBILISER CODE ECU) WAS DEFECTIVE)