Jaguar Workshop Service and Repair Manuals > S-Type (X200) V8-4.2L SC (2003) > Powertrain Management | Computers and Control Systems | Relays and Modules - Computers and Control Systems | Engine Control Module | Component Information | Description and Operation | Engine Control Module

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Engine Control Module: Description and Operation
Communications Network Monitors

Communications Network Monitors

If the ECM does not receive any messages from the required module for a set time, then a fault is flagged.

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