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Home >> Jaguar >> 2023 >> XF R-Dynamic SE >> Repair and Diagnosis >> External Pages >> Different car >> Section 77 (Automatic Transmission/Transaxle - Vehicles With: 8HP45 8-Speed Automatic Transmission RWD -- XE (X760)) >> Automatic Transmission/Transaxle - Vehicles With: 8HP45 8-Speed Automatic Transmission RWD >> Description And Operation >> Operation >> Power Flows >> Notes

Power Flows: Notes

WARNING: This page is about a different car, the 2018 Jaguar XE and 2017 Jaguar XE. However, it is still accessible from the selected car via links, so may be relevant.

Operation of the transmission is controlled by the Transmission Control Module (TCM), which electrically activates various solenoids to control the transmission gear selection. The sequence of solenoid activation is based on programmed information in the TCM memory and physical transmission operating conditions such as:

All gear shifts from 1st to 8th and 8th to 1st are known as 'overlap' shifts. Overlap shifts are during a gear shift one clutch must remain capable of transmitting torque at a reduced main pressure until the other clutch is ready to accept the torque.

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