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Home >> Chevrolet >> 2020 >> Express 2500 LS, 6.0L Eng VIN G >> Repair and Diagnosis >> External Pages >> Different car >> Section 54 (Engine Controls And Fuel - 2.8L (LWN) Diesel - Diagnostic Information And Procedures (2 Of 3)) >> Diagnostic Information and Procedures >> DTC P066A-P066F, P0671-P0674, P067A, or P067B >> 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.
  1. Ignition/Vehicle - Off
  2. Disconnect the appropriate electrical connector : E12 Glow Plug
  3. Test for 0. 3 to 1. 0 ohms between the test points: Control terminal 1/A & The component's housing
    • If not between 0. 3 and 1. 0 ohms 

      Replace the component: E12 Glow Plug

    • Go to next step: If between 0. 3 and 1. 0 ohms 
  4. All OK.
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