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Home >> GMC >> 2021 >> Terrain SLT, 4WD >> Repair and Diagnosis (Single Page) >> Accessories & Equipment >> Anti-Theft Systems >> Vehicle Access System >> Diagnostic Information and Procedures >> Liftgate Ajar Indicator Malfunction (Without TB5) >> Diagnostic Fault Information

Diagnostic Fault Information

Circuit Short to Ground Open/High Resistance Short to Voltage Signal Performance
Signal 1 2 2 -
Ground - 3 - -
  1. Driver Information Display - Rear Access Open = Always On
  2. Driver Information Display - Rear Access Open = Always Off
  3. M30 Liftgate Latch = Inoperative
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