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Home >> Chevrolet >> 2024 >> Tahoe Commercial, 4WD >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 11 (Engine Controls And Fuel - 3.0L (Lm2) Diesel - Diagnostic Information And Procedures (4 Of 5)) >> Diagnostic Information and Procedures >> DTC P129F >> 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 P0627, P0628, P0629, P1029, P102A, P102B, P1255, P12A6, P16D7, P16D8, U18A2 is not set.
    • Go to next step: If none of the DTCs are set 
  3. Perform the scan tool function: Clear DTCs
  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 DTC P129F is not set and no other DTCs are set.

    • Go to next step: If no DTC is set 
  5. All OK.