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Home >> GMC >> 1997 >> Forward Control 5.7 K, CNG >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 9 (Engine Controls - System/Component Tests - 6.5L (P Series)) >> Computerized Engine Controls >> Control Unit >> Notes
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Control Unit: Notes

WARNING: This page is about a different variant/trim than selected.
NOTE: To perform the following ground and power tests, use appropriate wiring diagram in the WIRING DIAGRAMS article.