Circuit/System Verification
WARNING: This page is about a different variant/trim than selected.
- DTC P2544 is an informational DTC. Diagnose all other engine control DTCs prior to DTC P2544. Refer to Diagnostic Trouble Code (DTC) List - Vehicle .
- If there are no other engine controls DTCs, diagnosis is accomplished by looking for an intermittent CAN circuit fault. Refer to Scan Tool Does Not Communicate with High Speed GMLAN Device .