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Home >> Suzuki >> 2009 >> Grand Vitara Base, Standard >> Repair and Diagnosis >> External Pages >> Different car >> Section 31 (Immobilizer System) >> Diagnostic Information And Procedures >> Inspection Of Immobilizer Control Module (ICM) And Its Circuit >> Reference Waveform
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Reference Waveform

WARNING: This page is about a different car, the 2007 Suzuki Grand Vitara and 2006 Suzuki Grand Vitara. However, it is still accessible from the selected car via links, so may be relevant.
Fig 1: Reference Waveform - Transponder Code
G04810047
NOTE: When ECM cannot read the transponder code at the first try, ECM tries to read the transponder code repeatedly up to 8 times. The second waveform is the example showing that ECM read the transponder code successfully at the second try.
WAVEFORM REFERENCE

Measurement terminals CH1: G24-3 to G24-2
CH2: G24-4 to G24-2
Oscilloscope settings CH1: 5 V/DIV
CH2: 5 V/DIV
TIME: 20 ms
Measurement condition Right after the ignition switch is turned ON, the waveform can be read.