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Home >> GMC >> 2018 >> Acadia Denali, FWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 167 (Engine Controls And Fuel - 3.6L (LGX LF4) - DTC P0650 To DTC P3436 And Diagnostic Information And Procedures) >> Diagnostic Information and Procedures >> DTC P159F or P15A0: Fuel Economy Mode Switch (LF4) >> Diagnostic Fault Information

Diagnostic Fault Information

WARNING: This page is about a different car, the 2017 Cadillac ATS. However, it is still accessible from the selected car via links, so may be relevant.
Circuit Short to Ground High Resistance Open Short to Voltage Signal Performance
Fuel Economy Mode Switch 5 V Reference P159F P159F, P15A1 P159F P15A0 P15A1
Fuel Economy Mode Switch Signal P159F P159F P159F P15A0 P15A1
Fuel Economy Mode Switch Ground - P15A0, P15A1 P15A0 - P15A1
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