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Home >> GMC >> 2006 >> Sierra 1500 HD, RWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 1358 (Hybrid Controls - DTC P181C To DTC P2797) >> DTC P1A4F, P1A50-P1A54, P1ADC, or P1ADD >> Circuit/System Verification

Circuit/System Verification

WARNING: This page is about a different car, the 2009 GMC Sierra and 2009 Chevrolet Silverado. However, it is still accessible from the selected car via links, so may be relevant.
  1. Clear the DTC information.
  2. Ignition OFF for 1 minute.
  3. Ignition ON.
  4. Retest for DTCs P1A4F, P1A50, P1A51, P1A52, P1A53, P1A54, P1ADC and P1ADD.
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