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Home >> Chevrolet >> 2020 >> Express 2500 LS, 6.0L Eng VIN G >> Repair and Diagnosis >> External Pages >> Different car >> Section 94 (Engine Controls And Fuel - 2.8L (LWN) Diesel - Diagnostic Information And Procedures (3 Of 3)) >> Diagnostic Information and Procedures >> DTC P245A-P245D >> 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.

Static Test

  1. Ignition OFF, disconnect the harness connector at the Q47 Exhaust Gas Recirculation Cooler Bypass Solenoid Valve.
  2. Test for 25 - 35 Ω between the control terminal 1 and the voltage terminal 2 of the Q47 Exhaust Gas Recirculation Cooler Bypass Solenoid Valve.
    • If not within 20 - 35 Ω 

      Replace the Q47 Exhaust Gas Recirculation Cooler Bypass Solenoid Valve.

    • Go to next step: If within 20 - 35 Ω 
  3. Test for infinite resistance between each terminal and the Q47 Exhaust Gas Recirculation Cooler Bypass Solenoid Valve housing.
    • If less than infinite resistance 

      Replace the Q47 Exhaust Gas Recirculation Cooler Bypass Solenoid Valve.

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