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Home >> Chevrolet >> 2020 >> Express 2500 LS, 6.0L Eng VIN G >> Repair and Diagnosis >> External Pages >> Different car >> Section 92 (Engine Controls And Fuel - 2.8L (LWN) Diesel - Diagnostic Information And Procedures (1 Of 3)) >> Diagnostic Information and Procedures >> DTC P040B-P040E or P041B-P041E >> 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: B130 Exhaust Gas Recirculation Temperature Sensor
  3. Test the resistance between the test points: Signal circuit terminal 2 & Low Reference terminal 1 @ Component
  4. Verify the value is within the range listed in the table: Temperature Versus Resistance - Exhaust Gas Temperature Sensor
    • If not in the specified range 

      Replace the component: B130 Exhaust Gas Recirculation Temperature Sensor

    • Go to next step: If in the specified range 
  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: B130 Exhaust Gas Recirculation Temperature Sensor

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