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GMC
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1997
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C3500 HD 7.4 J, Automatic
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Repair and Diagnosis
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External Pages
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Different variant/trim
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Section 5 (Engine Controls - System & Component Testing - 6.5L)
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Computerized Engine Controls
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Control Unit
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Notes
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.