LEMON Manuals: Even more car manuals for everyone
Home >> Buick >> 2018 >> Enclave Base >> Repair and Diagnosis >> External Pages >> Different car >> Section 66 (Data Communication System) >> Diagnostic Information and Procedures >> DTC C0550: Electronic Control Unit >> Circuit/System Verification

Circuit/System Verification

WARNING: This page is about a different car, the 2017 GMC Acadia Limited, 2017 Chevrolet Traverse, and 2017 Buick Enclave. 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 LEMON Manuals