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Home >> Buick >> 2019 >> Regal TourX Base >> Repair and Diagnosis >> External Pages >> Different car >> Section 139 (Engine Controls And Fuel - 3.6L (LGX) - Diagnostic Information And Procedures (P0449-P3436) And Symptoms) >> Diagnostic Information and Procedures >> DTC P1248-P124D >> Component Testing

Component Testing

WARNING: This page is about a different car, the 2020 Buick Regal and 2019 Buick Regal. However, it is still accessible from the selected car via links, so may be relevant.
  1. Ignition/Vehicle - Off
  2. Disconnect the electrical connector: Q17 Fuel Injector
    3. NOTE:

    The specified resistances are valid for components at room temperature.

  3. Test for 1 to 3 ohms between the test points: Control circuit terminal 2 & Control circuit terminal 1
    • If not between 1 and 3 ohms 

      Replace the component: Q17 Fuel Injector

    • Go to next step: If between 1 and 3 ohms 
  4. Test for infinite resistance between the test points: Each terminal of the component & The component's housing
    • If less than infinite resistance 

      Replace the component: Q17 Fuel Injector

    • Go to next step: If infinite resistance 
  5. All OK.
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