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Home >> Cadillac >> 2014 >> Escalade Base, AWD >> Repair and Diagnosis >> Engine Performance >> System >> Engine Controls/Fuel - 5.3L, 6.2L - DTC P0010 To DTC P0442 >> Diagnostic Information and Procedures >> DTC P0106 >> Circuit/System Testing

Circuit/System Testing

NOTE:

All electrical components and accessories must be turned OFF and allowed to power down.

  1. Verify none of the following conditions exist:
    • Loose clamps, cracks, or other damage in the air intake duct system
    • Splits, kinks or improper connections at the vacuum hoses
    • Vacuum leaks at the intake manifold and throttle body
    • A dirty, restricted, or deteriorating air filter element
    • A leaking, loose, disconnected, or cracked positive crankcase ventilation (PCV) valve, pipe, or seal
    • A collapsed, restricted, or collapsed air intake duct
    • A misaligned or damaged air intake duct
    • Any objects blocking the air inlet probe of the MAF/IAT Sensor
    • Any contamination or debris on the sensing elements in the probe of the MAF/IAT Sensor
    • A cracked or damaged MAF Sensor housing
    • Any water intrusion in the induction system
    • Any snow or ice build-up at the air cleaner, MAF or MAP Sensors in cold climates
    • Any intake manifold leak
    • A MAP Sensor seal that is leaking, missing, or damaged
    • An Intake Manifold Resonator with a leaking seal, or a cracked or broken housing
    • Missing, restricted or leaking exhaust components - Refer to Symptoms - Engine Exhaust .
    • If a condition exists 

      Repair or replace component as appropriate.

    • If no condition exists 
  2. Test or replace the B74 Manifold Absolute Pressure Sensor.
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