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Home >> GMC >> 1995 >> Forward Control 7.4 N >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 10 (Engine Controls - Remove/Install/Overhaul - 4.3L) >> Powertrain Control Module (Pcm) >> Control Module >> Removal
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Control Module: Removal

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Disconnect negative battery cable. Unplug electrical connectors from PCM. See Figure. Remove PCM from vehicle. Remove PROM and CALPAK (if equipped) or MEM-CAL from PCM. See CALPAK, MEM-CAL, or PROGRAMMABLE READ-ONLY MEMORY (PROM).