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Engine Controls - System & Component Testing - 6.0L W/bifuel & Cng: Wiring GMC Savana H2500

Testing & Diagnostics 14 illustrations

FICM/PCM Harness Resistance

Turn ignition switch to LOCK position. Disconnect FICM or PCM and appropriate component harness connectors. Check for open or short circuits between appropriate PCM harness connector terminal and appropriate component harness connector terminal. If harness is open or shorted, repair as necessary.

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Scheme 43: FICM/PCM Harness Resistance
Scheme 43: FICM/PCM Harness Resistance

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