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Home >> Chevrolet >> 2022 >> Tahoe PPV, RWD >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 14 (Engine Controls And Fuel - 3.0L (Lm2) Diesel - Diagnostic Information And Procedures (5 Of 5)) >> Diagnostic Information and Procedures >> DTC P268C-P268F, P2690, or P2691 >> 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 P268C, P268D, P268E, P268F, P2690, P2691 is not set.
    • If the DTC sets 
    1. Perform the following procedure/test: Fuel Injector Flow Rate Programming
    2. Verify the DTC does not set.
      • If the DTC sets - Replace the component: K20 Engine Control Module
      • Go to next step: If the DTC does not set
    3. All OK.
    • Go to next step: If the DTC is not set 
  3. All OK.
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