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Home >> Chevrolet >> 2017 >> Traverse LS Base >> Repair and Diagnosis >> Engine Performance >> System >> Data Communication System >> Diagnostic Information and Procedures >> DTC C0550: Electronic Control Unit >> Circuit/System Verification

Circuit/System Verification

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  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.