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Home >> Chevrolet >> 2020 >> Express 2500 LS, 6.0L Eng VIN G >> Repair and Diagnosis >> External Pages >> Different car >> Section 114 (Engine Controls And Fuel - 4.3L (LV1) - Diagnostic Information And Procedures (1 Of 2)) >> Diagnostic Information and Procedures >> DTC P0089, P00C6, P228C, P228D, or P2C1E-P2C20 >> Component Testing

Component Testing

WARNING: This page is about a different car, the 2019 GMC Savana 3500, 2019 GMC Savana 2500, 2019 Chevrolet Express 3500, and 2019 Chevrolet Express 2500. However, it is still accessible from the selected car via links, so may be relevant.
    NOTE:

    As little as 2 ohms of resistance in a circuit may cause a DTC to set.

  1. Ignition/Vehicle - Off
  2. Disconnect the electrical connector: G18 High Pressure Fuel Pump
  3. Test for 9 to 11 ohms between the test points: Control terminal 1 & Control terminal 2
    • If not between 9 and 11 ohms 

      Replace the component: G18 High Pressure Fuel Pump

    • Go to next step: If between 9 and 11 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: G18 High Pressure Fuel Pump

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