IMMOBILIZER (DIAGNOSTICS) > List of Diagnostic Trouble Code (DTC)

1. ECM

DTC	Item	Contents of diagnosis	Index No.
P0513	Incorrect Immobilizer Key	Incorrect immobilizer key (Use of unregistered key in body integrated unit)
P1570	Antenna	Faulty antenna
P1571	Reference Code Incompatibility	Reference code incompatibility between body integrated unit and ECM
P1572	IMM Circuit Failure (Except Antenna Circuit)	• Communication failure between body integrated unit and ECM • Combination meter and body integrated unit registration failed
P1574	Key Communication Failure	Communication failure between key and body integrated unit
P1576	EGI Control Module EEPROM	ECM malfunctioning
P1577	IMM Control Module EEPROM	Body integrated unit malfunctioning
P1578	Meter Failure	• Reference code incompatibility between combination meter and body integrated unit • Communication failure between body integrated unit and ECM

NOTE:

Perform diagnosis of engine DTC when a DTC other than an immobilizer DTC is detected.

2. BODY INTEGRATED UNIT

DTC	Item	Contents of diagnosis	Index No.	Relation between ECM and DTC
B1401	M Collation NG	Reference code incompatibility between combination meter and body integrated unit		P1578
B1402	Immobilizer Key Collation NG	• Incorrect immobilizer key (Use of unregistered key in body integrated unit) • Faulty antenna		• P0513 • P1570 • P1574
B1403	E/G request NG	Communication failure between body integrated unit and ECM		P1572

NOTE:

The starter relay control is performed in immobilizer system. When the body integrated unit detects a nonconformity of reference code, it immediately outputs a starter relay cut signal to ECM, and then ECM stops the starter relay operation. In this case, engine does not start, and DTC is not recorded in ECM. Check that the engine does not start on the DTC of body integrated unit.