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Home >> Cadillac >> 2018 >> Escalade Base, 4WD >> Repair and Diagnosis >> External Pages >> Different car >> Section 5 (Engine Controls And Fuel - 6.0L (L96) - DTC P0010 To DTC P0341) >> Diagnostic Information And Procedures >> DTC P00C7: Intake Air Pressure Measurement System - Multiple Sensors Not Plausible >> Circuit/System Verification

Circuit/System Verification

WARNING: This page is about a different car, the 2018 Chevrolet Suburban 3500 HD. However, it is still accessible from the selected car via links, so may be relevant.
  1. Ignition ON.
  2. Verify that DTCs P0106, P0107, P0108, P2122, P2123, P2127, P2128, P2138, P2228, P2229, P2230, P0033, P0034 or P0035 are not set.
    • Go to next step: If none of the DTCs is set 
  3. Verify none of the following conditions exist:
    • The air intake duct system for loose connecting clamps, cracks or other damage
    • A damaged Q38 Throttle Body blade or shaft
    • Splits, kinks or improper connections at the vacuum hoses
    • Faulty positive crankcase ventilation system operation
    • Carbon deposits on the throttle blade.
    • Vacuum leaks at the intake manifold, Q38 Throttle Body, Q17 Fuel Injector O-rings, B65 Intake Manifold Pressure and Air Temperature Sensor and B105 Supercharger Inlet Pressure Sensor.
    • If a condition exist 

      Repair as necessary.

    • Go to next step: If none of the conditions exist 
  4. Ignition ON.
  5. Verify the following scan tool parameters are within range of the Altitude vs. Barometric Pressure table. Refer to Altitude Versus Barometric Pressure table.
    • BARO Sensor
    • MAP Sensor
    • Supercharger Inlet Pressure Sensor
    • If a sensor parameter is not within range 

      Refer to the appropriate diagnostic below for further diagnosis.

    • Go to next step: If all sensor parameters are within range 
  6. All OK
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