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Home >> Suzuki >> 1997 >> Sidekick JS, 2D Utility, Standard >> Repair and Diagnosis >> Transmission >> Automatic Trans >> Automatic Transmission Diagnosis - Aw03-72LE & Aw03-73LE >> Operation >> Pcm Input Devices >> Engine Speed Signal
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Engine Speed Signal

PCM receives an engine speed signal from the Camshaft Position (CMP) sensor. To monitor transmission efficiency, engine speed signal is used to calculate actual transmission gear ratio by comparing engine speed with vehicle speed (input/output ratio).

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