DTC P0702-04: Transmission Control System Electrical - System internal failures: Action

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

Using the Jaguar Land Rover approved diagnostic equipment, check datalogger signal - ECU Power Supply Voltage (0xD112). Check the integrity of the transmission control module electrical connector. Check for correct latching, backed out terminals and corrosion. Refer to the electrical circuit diagrams and check the transmission control module power and ground circuits for open circuit, high resistance. Repair the wiring harness as necessary