DTC P178D-07: Transmission Friction Element D or E - Mechanical failures: Action

WARNING: This page is about a different car, the 2018 Land Rover Discovery Sport, 2017 Land Rover Discovery Sport, 2016 Land Rover Discovery Sport, and 2015 Land Rover Discovery Sport. However, it is still accessible from the selected car via links, so may be relevant.

NOTE: After installing a new transmission control module, perform routines - Configure New Module (Without Transmission Replacement), Transmission Control Module Adaption.

Refer to the relevant section of the service information and check the automatic transmission fluid level and condition. Rectify any fluid leaks and top up as necessary. Using the Jaguar Land Rover approved diagnostic equipment, clear the DTCs and perform a road test using all gears. If the fault persists, install a new automatic transmission