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Home >> GMC >> 2013 >> Sierra 1500 XFE >> Repair and Diagnosis >> External Pages >> Different car >> Section 2558 (Data Communication System) >> Diagnostic Information and Procedures >> DTC P0601-P0606, P060A, P062F, or P262B: Control Module/Memory >> Circuit/System Verification

Circuit/System Verification

WARNING: This page does not describe the selected car, but rather 6 other vehicles, including the 2015 GMC Sierra 3500 HD, 2015 GMC Sierra 2500 HD, 2015 GMC Sierra 1500, 2015 Chevrolet Silverado 3500 HD, and 2015 Chevrolet Silverado 2500 HD. However, it is still accessible from the selected car via links, so may be relevant.
  1. Ignition ON.
  2. Verify that DTC P0602 is not set.
    • If DTC P0602 is set 
    1. Program the device that set the DTC.
    2. Verify that the DTC does not set.
      • If the DTC sets, replace the device that set the DTC.
      • If the DTC does not set
    3. All OK.
    • If DTC P0602 is not set 
  3. Verify that DTC P0601, P0603, P0604, P0605, P0606, P060A, P062F, or P262B is not set.
    • If any of the DTCs are set 

      Replace the device that set the DTC.

    • If none of the DTCs are set 
  4. All OK
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