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Home >> Jaguar >> 2003 >> XJR >> Repair and Diagnosis >> Engine Performance >> System >> Engine Controls - Self-Diagnostics >> Diagnostic Trouble Code Identification >> DTC P1609: ECM Microprocessor-To-Microprocessor Communication Failure >> Notes
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DTC P1609: ECM Microprocessor-To-Microprocessor Communication Failure: Notes

NOTE: Limited information available from manufacturer.
NOTE: After each repair, clear DTCs. See CLEARING DIAGNOSTIC TROUBLE CODES/ECM RESET PROCEDURE  under SELF-DIAGNOSTIC SYSTEM. Turn ignition off and then on. Read DTCs to verify repair is complete. For DLC and ECM connector terminal identification, see CONNECTOR IDENTIFICATION . For wiring diagrams and all other terminal identification, see WIRING DIAGRAMS .