LEMON Manuals
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LS 3.9 A
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Communications Network
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Pinpoint Test H: The Powertrain Control Module (PCM) Does Not Respond To The Diagnostic Tool
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Possible Causes
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Possible Causes
4-EC7 (GY/RD) or 5-EC7 (BU/RD) shorted to ground or open
PCM C175b
DLC C251
PCM