DTC U0100-87: Lost Communication With ECM/PCM "A" -Missing message: Action

WARNING: This page does not describe the selected car, but rather 12 other vehicles, including the 2015 Jaguar XKR-S, 2015 Jaguar XKR, 2015 Jaguar XK, 2014 Jaguar XKR-S, and 2014 Jaguar XKR. However, it is still accessible from the selected car via links, so may be relevant.

NOTE: Do NOT install a new Engine Control Module if an Engine Control Module Timeout DTC is only logged in the Transmission Control Module, the failure is NOT with the Engine Control Module

Check Engine Control Module for stored DTCs. Check CAN Bus Circuit for fault