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2010
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Traverse LS, AWD
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Repair and Diagnosis
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Engine Performance
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System
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Engine Control System & Fuel System - 3.6L - DTC P0638 To DTC P2635
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DTC P2544
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Conditions for Setting the DTC
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Conditions for Setting the DTC
The ECM detects an invalid signal from the TCM for greater than 4 seconds.