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Autodata - Diagnostic Trouble Codes Fault locations and probable causes - 2004 edition

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Oscilloscope testing<br />

Frequency modulated signals - amplitude, frequency, shape <strong>and</strong> pulse width<br />

Frequency modulated signals are generated by components such as:<br />

Fig. 10 Fig. 11<br />

Crankshaft position (CKP) sensor - inductive type<br />

Camshaft position (CMP) sensor - inductive type<br />

Fig. 12<br />

Fig. 13<br />

4 T b<br />

AD42267<br />

Vehicle speed (VSS) sensor - inductive type<br />

Hall effect speed <strong>and</strong> posltlon sensors

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