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Home >> Chevrolet >> 2024 >> Tahoe Commercial, 4WD >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 8 (Engine Controls And Fuel - 3.0L (Lm2) Diesel - Diagnostic Information And Procedures (2 Of 5)) >> Diagnostic Information and Procedures >> DTC P0216 >> Circuit/System Verification

Circuit/System Verification

WARNING: This page is about a different variant/trim than selected.
  1. Verify there are no DTCs set related to the following component/system: Q17 Fuel Injector
    • Go to next step: If a related DTC is not set 
  2. Ignition - On/Vehicle - In Service Mode
  3. Verify the scan tool parameter: Cylinder 1 - 6 Fuel Injector Control Circuit Status = OK

    Perform the action while monitoring the parameter:

    • Wiggle the harness and connector(s): K20 Engine Control Module
    • Wiggle the harness and connector(s): Q17 Fuel Injector
    • If not the specified state 

      Repair as necessary - Wiring/Terminal(s)/Electrical Connector(s)

    • Go to next step: If the specified state 
  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.
  5. Verify the DTC does not set.
    • If the DTC sets 

      Replace the component: K20 Engine Control Module

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