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Home >> Jaguar >> 2007 >> XJ8 Base >> Repair and Diagnosis >> External Pages >> Different car >> Section 43 (Servicing) >> Descriptions & Operation >> Transmission Control Module (TCM) >> Operation
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Transmission Control Module (TCM): Operation

WARNING: This page is about a different car, the 2003 Jaguar XJR, 2002 Jaguar XJR, and 2001 Jaguar XJR. However, it is still accessible from the selected car via links, so may be relevant.
CAUTION: Disconnection of OTHER control module connectors and/or the vehicle battery, may introduce fault codes (DTCs). Following rectification and reconnection, ensure that no induced codes exist in the TCM memory.

The TCM processes input and output in both analogue and digital form which may be summarized in four categories:

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