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TIBURON(GK) > 2003 > G 2.7 V6 DOHC > Body Electrical System > Immobilizer System > DIAGNOSIS OF IMMOBILIZER FAULTS • Communication between the ECM and the BCM • Function of the BCM and the transponder, and • Data (stored in the ECM) related to the immobilizer function. Type Diasnostic Codes Immobilizer Related Faults Fault Types SMARTRA (2.0 β ENGINE) P1610 BCM fault No answer from the BCM P1800 Antenna error P1803 Invalid request from ECM or corrupted data P1801 Transponder fault Invalid transponder data P1805 EEPROM Inconsistent data of EEPROM ECM fault No valid data from ECM after 3 attempts by STAND ALONE (2.7 δ ENGINE) 01 Untaught transponder Untaught transponder 02 Transponder communication Transponder error due to a wrong code or 03 ECM communication error ECM error due to bad Service ID (SID), Bad 04 Immobilizer antenna - open Open Immobilizer antenna 05 BCM internal fault or EEPROM BCM internal fault (smart driver failure) or 06 ECM not detected ECM not detected REPLACEMENT OF ECM AND BCM NEUTRALISING ECM |