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GMC
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2020
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Terrain Denali, FWD
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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 7 (Engine Controls And Fuel - 1.5L (LYX) - Diagnostic Information And Procedures (2 Of 2))
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Diagnostic Information and Procedures
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DTC P1178 or P1179
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Conditions for Setting the DTC
Conditions for Setting the DTC
WARNING:
This page is about a different variant/trim than selected.
The ECM detects an error value for over 1 s.