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Home >> Chevrolet >> 2018 >> Impala Premier, Gas >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 5 (Engine Controls And Fuel - 2.5L (LCV) - Diagnostic Information And Procedures (P0340-P2635) And Symptoms) >> Diagnostic Information and Procedures >> DTC P2544 >> Circuit/System Verification

Circuit/System Verification

WARNING: This page is about a different variant/trim than selected.
NOTE:
  • DTC P2544 is an informational DTC.
  • Diagnose all other engine control module DTCs prior to DTC P2544.
  1. Verify that no other DTCs are set except for DTC P2544.
    • Go to next step: If only DTC P2544 is set 
  2. Replace the K71 Transmission 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 DTC sets 

      Replace the K20 Engine Control Module.

    • Go to next step: If DTC does not set 
  5. All OK.
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