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Home >> GMC >> 2017 >> Acadia SL >> Repair and Diagnosis >> External Pages >> Different car >> Section 180 (Battery, Charging System And Starting System) >> Diagnostic Information and Procedures >> DTC B099A: Stop/Start Select Switch Indicator Circuit >> Circuit/System Verification

Circuit/System Verification

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.
  1. Ignition ON.
  2. Verify the ECO switch indicator turns ON and OFF when commanding the Start/Stop Select Switch Indicator Active and Inactive with a scan tool.
    • If the ECO switch indicator does not turn ON and OFF 

      Refer to Circuit/System Testing.

    • If the ECO switch indicator turns ON and OFF 
  3. All OK.
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