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Home >> Suzuki >> 2006 >> Grand Vitara Base, AWD, Standard >> Repair and Diagnosis (Single Page) >> Accessories & Equipment >> Anti-Theft Systems >> Immobilizer System >> General Description >> On-Board Diagnostic System Description (Self-Diagnosis Function)
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On-Board Diagnostic System Description (Self-Diagnosis Function)

ECM diagnoses if there is any trouble with the immobilizer control system. The diagnostic information is stored as the diagnostic trouble code (DTC) in ECM. To read the diagnostic information, use SUZUKI scan tool referring to DIAGNOSTIC TROUBLE CODE (DTC) CHECK .

With the ignition switch turned ON (but the engine at stop) regardless of the condition of the engine and emission control system, ECM indicates whether there is any trouble with the immobilizer control system or not by either lighting ON or flashing ON and OFF the immobilizer indicator lamp.

Immobilizer indicator lamp lights ON: 

No trouble exists in the immobilizer control system. (After starting up the engine, the lamp turns OFF.)

Immobilizer indicator lamp flashes ON and OFF: 

There is some trouble in the immobilizer control system or in the keyless start system. Its diagnostic information is stored in ECM.

Fig 1: Identifying Immobilizer Indicator Lamp
G04810041