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Home >> Chevrolet >> 2022 >> Tahoe PPV, RWD >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 12 (Engine Controls And Fuel - 3.0L (Lm2) Diesel - Diagnostic Information And Procedures (3 Of 5)) >> Diagnostic Information and Procedures >> DTC P10C1, P10EC, P10ED, P2008-P2010, or P201B >> Circuit/System Verification

Circuit/System Verification

WARNING: This page is about a different variant/trim than selected.
  1. Engine - Idling
  2. Verify the scan tool parameter:
    • Intake Manifold Runner Control Valve Control Circuit High Test Status = Not Run or Okay
    • Intake Manifold Runner Control Valve Control Circuit Low Test Status = Not Run or Okay
    • Intake Manifold Runner Control Valve Control Circuit Open Test Status = Not Run or Okay
    • Intake Manifold Runner Control Valve Control Circuit Shorted Test Status = Not Run or Okay
    • If not the specified state 

      Refer to: Circuit/System Testing

    • Go to next step: If the specified state 
  3. Clear the DTCs.
  4. Ignition Off - For greater than 1 min
  5. Ignition - On / Vehicle - In Service Mode
  6. Verify DTC P10C1, P10EC, P10ED, P2008, P2010, P201B is not set.
    • If the DTC sets 

      Refer to: Circuit/System Testing

    • Go to next step: If the DTC does not set 
  7. Engine - Idling
  8. Verify the scan tool parameter:
    • Intake Manifold Runner Control Valve Control Circuit High Test Status = Not Run or Okay
    • Intake Manifold Runner Control Valve Control Circuit Low Test Status = Not Run or Okay
    • Intake Manifold Runner Control Valve Control Circuit Open Test Status = Not Run or Okay
    • Intake Manifold Runner Control Valve Control Circuit Shorted Test Status = Not Run or Okay

      Perform the action while monitoring the parameter:

    • Wiggle the harness and connector: Q22 Intake Manifold Tuning Solenoid Valve
    • Wiggle the harness and connector: K20 Engine Control Module
    • If not the specified state 

      Refer to: Circuit/System Testing

    • Go to next step: If the specified state 
  9. 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 does not set 
  10. All OK.