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Home >> Chevrolet >> 1996 >> Corvette Base, 2D Convertible, 5.7 P >> Repair and Diagnosis >> External Pages >> Different car >> Section 8 (Engine Controls - Tests W/Codes) >> ECM/Pcm Code Charts >> Code 99 Tach Output Circuit >> Circuit Description

Circuit Description

WARNING: This page is about a different car, the 1995 Chevrolet Corvette. However, it is still accessible from the selected car via links, so may be relevant.

PCM receives an RPM signal from ignition module. PCM then modifies this signal and sends it to tachometer.

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