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Home >> GMC >> 2018 >> Terrain SL >> Repair and Diagnosis (Single Page) >> Accessories & Equipment >> Anti-Theft Systems >> Power Door Lock System And Release Systems >> Diagnostic Information And Procedures >> DTC B396C: Liftgate Mode Switch Circuit Performance Signal Invalid >> Circuit/System Verification

Circuit/System Verification

  1. Ignition ON.
  2. Verify the scan tool Liftgate Mode Switch is between 125 counts and 350 counts and changes to 245 counts while rotating the S45B Liftgate Control Switch-Interior.
    • If not between 125 counts and 350 counts or does not change 

      Refer to Circuit/System Testing

    • Go to next step: If between 125 counts and 350 counts and changes 
  3. All OK.
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