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Home >> Cadillac >> 2017 >> Escalade ESV Base, RWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 12 (Engine Controls And Fuel - 6.0L (L96) - DTC P0010 To DTC P0341) >> Diagnostic Information and Procedures >> DTC P155D: Hill Decent Control Message Counter Incorrect >> Circuit/System Verification

Circuit/System Verification

WARNING: This page is about a different car, the 2017 Chevrolet Suburban 3500 HD. However, it is still accessible from the selected car via links, so may be relevant.
NOTE:
  • DTC P155D is an informational DTC.
  • Diagnose all other engine control module DTCs prior to DTC P155D.
  1. Verify that no other DTCs are set except for DTC P155D.
    • If only DTC P155D is set 
  2. Replace the K9 Body Control Module.
  3. Operate the vehicle within the conditions for running the DTC. You may also operate the vehicle within the conditions that you observed from the freeze frame/failure records data.
  4. Verify the DTC does not set.
    • If the DTC sets 

      Replace the K20 Engine Control Module.

    • If the DTC does not set 
  5. All OK.
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