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Home >> Infiniti >> 2003 >> FX45 >> Repair and Diagnosis >> Engine Performance >> System >> Engine Controls - Self-Diagnostics >> Diagnostic Tests >> DTC P1780: Shift Change Signal >> Circuit Description
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Circuit Description

ECM receives current gear position signal, next gear position signal, shift change signal and shift pattern signal through CAN communication line from Transmission Control Module (TCM). ECM uses these 4 signals for engine control.

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