LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> Jaguar >> 2000 >> XJ8 Base >> Repair and Diagnosis >> Engine Performance >> System >> Engine Controls - Self-Diagnostics >> Diagnostic Trouble Code Identification >> DTC P1649: ECM Flash Programming Circuit Malfunction >> Possible Cause
October 30: LEMON manuals on a temporary server, it is slow and having issues, download the manuals you need! Later in November we will switch back to the fast server.

Possible Cause

ECM to Data Link Connector (DLC) circuit shorted to ground or shorted to voltage.