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Home >> Buick >> 2007 >> Allure CX >> Repair and Diagnosis >> External Pages >> Different car >> Section 72 (Engine Control System & Fuel System - 3.8L - DTC P2119 To DTC P2444 & DTC U0107) >> DTC P2444 >> Circuit/System Verification

Circuit/System Verification

WARNING: This page is about a different car, the 2008 Buick LaCrosse and 2008 Buick Allure. However, it is still accessible from the selected car via links, so may be relevant.
  1. If DTCs P0411, P0418, P2432 or P2433 are set, perform those diagnostics first.
  2. Ignition ON, observe that the AIR pump is not activated.
    • If the AIR pump is activated, test the AIR pump voltage supply circuit for a short to voltage. If the circuit tests normal, test the AIR pump relay control circuit for a short to ground. If the circuits test normal, test the relay. If the circuits and relay test normal, replace the PCM.
  3. 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.
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