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Home >> Chevrolet >> 2024 >> Tahoe Commercial, 4WD >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 7 (Engine Controls And Fuel - 3.0L (Lm2) Diesel - Diagnostic Information And Procedures (1 Of 5)) >> Diagnostic Information and Procedures >> DTC P0090-P0092, P00C9, P00CA, P10E6-P10E8, P10EA, P163A, P163B, P2294-P2296, or P233A-P233C >> Component Testing

Component Testing

WARNING: This page is about a different variant/trim than selected.
  1. Ignition/Vehicle - Off
  2. Disconnect the appropriate electrical connector: Q18 Fuel Pressure Regulator
    3. NOTE:

    The specified resistances are valid for components at room temperature.

  3. Test for 0.3 to 2.0 ohms between the test points: Component terminal 1 & Component terminal 2
    • If not between 0.3 and 2.0 ohms 

      Replace the component: Q18 Fuel Pressure Regulator

    • Go to next step: If between 0.3 and 2.0 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: Q18 Fuel Pressure Regulator

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