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Home >> Chevrolet >> 2023 >> Tahoe SSV >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 7 (Engine Controls And Fuel - 3.0L (Lm2) Diesel - Diagnostic Information And Procedures (3 Of 5)) >> Diagnostic Information and Procedures >> DTC P066A-P066F, P0671-P0676, or P067A-P067F >> Circuit/System Verification

Circuit/System Verification

WARNING: This page is about a different variant/trim than selected.
  1. Ignition - On/Vehicle - In Service Mode
  2. Verify DTC P066A, P066C, P066E, P067A, P067C, P067E is not set. - All
    • If all of the DTCs are set 

      Refer to: Circuit/System Testing - Test 1

    • Go to next step: If all of the DTCs are not set 
  3. Verify DTC P066A-P066F, P0671-P0676, or P067A-P067F is not set.
    • If any of the DTCs are set 

      Refer to: Circuit/System Testing - Test 2

    • Go to next step: If none of the DTCs are set 
  4. 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.

    Verify the DTC does not set.

    • If the DTC sets 

      Refer to: Circuit/System Testing

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