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Home >> Chevrolet >> 2022 >> Blazer RS, 4WD >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 6 (Engine Controls And Fuel - 2.0L - Diagnostic Information And Procedures (1 Of 3)) >> Diagnostic Information and Procedures >> DTC P0096, P00E9, or P0111 >> 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 P0097, P0098, P00EA, P00EB, P0112, P0113, P0117, P0118, P14B6, P1682, P16A7, P16BC, P2610, U060F, U1346, U2011 is not set.
    • Go to next step: If none of the DTCs are set 
  3. Verify the scan tool Freeze Frame/Failure Records parameters listed below are within 25°C (45°F) of the following parameter: Start-Up ECT
    • Start-Up IAT Sensor 1
    • Start-Up IAT Sensor 2
    • Start-Up IAT Sensor 3
    • If not within 25°C (45°F) of each other 
    • {Start-Up IAT Sensor 1} Replace the component: B75C Multifunction Intake Air Sensor
    • {Start-Up IAT Sensor 2} Replace the component: B75C Multifunction Intake Air Sensor
    • {Start-Up IAT Sensor 3} Refer to: DTC P00EA-P00EC 
    • Go to next step: If within 25°C (45°F) of each other 
  4. Engine - Idling
  5. Verify the scan tool parameter: = -39 to 149°C (-38 to 300°F) and changes
    • IAT Sensor 1
    • IAT Sensor 2
    • IAT Sensor 3
    • If not in the specified range or does not change 
    • {Start-Up IAT Sensor 1} Replace the component: B75C Multifunction Intake Air Sensor
    • {Start-Up IAT Sensor 2} Replace the component: B75C Multifunction Intake Air Sensor
    • {IAT Sensor 3} Refer to: DTC P00EA-P00EC 
    • Go to next step: If in the specified range and changes 
  6. Verify the appropriate scan tool parameter:
    • IAT Sensor 1 = The parameter value should not change
    • IAT Sensor 2 = The parameter value should not change
    • IAT Sensor 3 = The parameter value should not change
    • Perform the action while monitoring the parameter:
    • Wiggle the harness and connector: B65 Intake Manifold Pressure and Air Temperature Sensor
    • Wiggle the harness and connector: B75C Multifunction Intake Air Sensor
    • Wiggle the harness and connector: K20 Engine Control Module
    • If the value spikes or drops out 

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

    • Go to next step: If the value does not spike or drop out 
  7. 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 

      Repeat the procedure starting at step 2

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