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Home >> Jaguar >> 2007 >> XJ8 Base >> Repair and Diagnosis >> External Pages >> Different car >> Section 6 (Engine Controls - Self-Diagnostics) >> Diagnostic Trouble Code Identification >> DTC P1609: ECM Microprocessor-To-Microprocessor Communication Failure >> System Default Action
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System Default Action

WARNING: This page does not describe the selected car, but rather 19 other vehicles, including the 2003 Jaguar XKR, 2003 Jaguar XK8, 2003 Jaguar XJR, 2003 Jaguar XJ8, and 2002 Jaguar XKR. However, it is still accessible from the selected car via links, so may be relevant.

When Red MIL is activated (DTC logged; first trip), ECM: