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Home >> GMC >> 2018 >> Acadia Denali, FWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 118 (Engine Controls And Fuel - 3.6L (LF4 LGX) - DTC P0685 LGX To DTC P3436 And Diagnostic Information And Procedures) >> Diagnostic Information and Procedures >> DTC P15A1: Fuel Economy Mode Switch (LGX) >> Component Testing

Component Testing

WARNING: This page is about a different car, the 2016 Cadillac ATS. However, it is still accessible from the selected car via links, so may be relevant.
  1. Test for 266-294 Ω between the 5 V reference voltage circuit terminal 3 of the switch and signal circuit terminal 6 of the switch.
    • If not within the specified range 

      Replace the S86 Vehicle Stability Control switch.

    • If within the specified range 
  2. Test for 2,640-2,920 Ω between the 5 V reference voltage circuit terminal 3 of the switch and the ground circuit terminal 4 of the switch.
    • If not within the specified range 

      Replace the S86 Vehicle Stability Control switch.

    • If within the specified range 
  3. With the switch button depressed to Decrement mode, test for 447-495 Ω between the 5 V reference voltage circuit terminal 3 of the switch and the ground circuit terminal 4 of the switch.
    • If not within the specified range 

      Replace the S86 Vehicle Stability Control switch.