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Engine Controls - System & Component Testing - 6.0L W/bifuel & Cng: Wiring Chevrolet Silverado 1500 HD

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 59: FICM/PCM Harness Resistance
Scheme 59: FICM/PCM Harness Resistance

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