DTC P2610-84: ECM/PCM Engine Off Timer Performance - Signal below allowable range: Action

NOTE: The FlexRay wiring harness must not be repaired by making a localized wiring repair. A new wiring harness should be installed.

Refer to the appropriate System Wiring Diagram(s) and check the FlexRay bus circuit for short circuit to ground, short circuit to power, open circuit, high resistance. Repair the wiring harness as necessary
Using the Jaguar Land Rover approved diagnostic equipment, check the body control module for related DTCs and refer to the relevant DTC index
Using the Jaguar Land Rover approved diagnostic equipment, re-configure the powertrain control module with the latest level software