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Home >> Scion >> 2005 >> tC Standard >> Repair and Diagnosis >> Engine Performance >> SFI System (2AZ-FE) >> Terminals Of ECM >> Waveform 10

Waveform 10

Engine speed signal

WAVEFORM 10 (ENGINE SPEED SIGNAL)

ECM Terminal Names Between TACH and E1
Tester Ranges 5V/DIV, 10 msec./DIV
Conditions Idling

HINT:

The wavelength becomes shorter as the engine RPM increases.

Fig 1: Identifying Engine Speed Signal Waveform
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