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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 P1018, P1019, P131B, P131C, P203B-P203D, P206B-P206D, P21C5, P2ADA-P2ADD, U2627, U2628, or U2630 >> Circuit/System Verification

Circuit/System Verification

WARNING: This page is about a different variant/trim than selected.
  1. Verify DTC P1018, P1019, P131B, P131C, P203B, P203C, P203D, P206B, P206C, P206D, P21C5, P2ADA, P2ADB, P2ADC, P2ADD, U2627, U2628, U2630 is not set.
    • If any of the DTCs are set 

      Refer to Circuit/System Testing

    • Go to next step: If none of the DTC are set 
  2. 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.
  3. Verify that DTCs P1018, P1019, P131B, P131C, P203B, P203C, P203D, P206B, P206C, P206D, P21C5, P2ADA, P2ADB, P2ADC, P2ADD, U2627, U2628, or U2630 are not set.
    • If any of the DTCs are set 

      Refer to Circuit/System Testing

    • Go to next step: If no DTC Is set 
  4. All OK.
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