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Home >> GMC >> 1997 >> Yukon 4D Utility, RWD >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control System & Component Tests - 5.7L >> Ignition System >> Timing Control Systems >> Ignition Control Circuit

Ignition Control Circuit

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An open or short to ground in Ignition Control (IC) or by-pass circuit will cause PCM/VCM to turn on Malfunction Indicator Light (MIL) and confirm fault by setting a related trouble code. Refer to the TESTS W/CODES - 5.7L article.

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