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Home >> Cadillac >> 2021 >> CT5 Sport, RWD >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 5 (Engine Controls And Fuel - 3.0L (LGY) - Diagnostic Information And Procedures (1 Of 2)) >> Diagnostic Information and Procedures >> DTC P0201-P0206, P0261, P0262, P0264, P0265, P0267, P0268, P0270, P0271, P0273, P0274, P0276, P0277, P1248-P124D, P2147, P2148, P2150, P2151, P2153, P2154, P2156, P2157, P216B, P216C, P216E, or P216F >> Component Testing

Component Testing

WARNING: This page is about a different variant/trim than selected.
  1. Ignition/Vehicle - Off
  2. Disconnect the electrical connector: Q17 Fuel Injector
  3. NOTE:

    The specified resistances are valid for components at room temperature.

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

      Replace the component: Q17 Fuel Injector

    • Go to next step: If between 2 and 3 Ω 
  5. 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 
  6. All OK.