ENGINE IMMOBILISER SYSTEM(w/ Entry and Start System) DIAGNOSTIC TROUBLE CODE CHART

ECM
DTC Code	Detection Item	Detection Enabling Condition (DTC Output Confirmation Operation)	See page
B1571	Immobiliser Key Check NG	Engine switch on (IG)	Click here
B1572	Immobiliser System Communication Malfunction	Engine switch on (IG)	Click here
B1576	Key Write Malfunction to EFI ECU	Engine switch on (IG) Register the ECU communication ID	Click here
B1577	Immobiliser System EEPROM Malfunction	Engine switch on (IG)	Click here

Certification ECU
DTC Code	Detection Item	Detection Enabling Condition (DTC Output Confirmation Operation)	See page
B2784	Antenna Coil Open / Short	With the shift lever in P* the electrical key transmitter sub-assembly is held against the engine switch and an engine start operation is performed by pressing and holding the engine switch when the transmitter battery is depleted.	Click here
B278A	Short to GND in Immobiliser System Power Source Circuit	With the shift lever in P* the electrical key transmitter is held against the engine switch and an engine start operation is performed by pressing and holding the engine switch when the transmitter battery is depleted.	Click here
B278D	Malfunction of ID-BOX Recognition	Always	Click here