Mike's Workshop Manuals: Service manuals for every vehicle
Home >> Chevrolet >> 2016 >> Express 2500 Base, Van Cargo Extended, 4.8L Eng VIN F >> Repair and Diagnosis >> External Pages >> Different car >> Section 8 (Data Communication System) >> Diagnostic Information and Procedures >> DTC C0550: Electronic Control Unit Software >> Circuit/System Verification

Circuit/System Verification

WARNING: This page is about a different car, the 2015 GMC Savana 3500, 2015 GMC Savana 2500, 2015 Chevrolet Express 3500, and 2015 Chevrolet Express 2500. However, it is still accessible from the selected car via links, so may be relevant.
  1. Verify that DTC B1325, B1330, B1370, B1380, B1424, B1440, B1441, B1517, C0800, C0899, C12E1, P0560, or P0562 is not set.
  2. Verify that DTC C0550 is not set.
    • If the DTC is set with symptom byte 39 or 43, program the control module that set the DTC. If the DTC resets, replace the control module that set the DTC.
    • If the DTC is set with other symptom bytes, replace the control module that set the DTC.
scientia non olet · About Mike's Workshop Manuals