DTC B12CB-23: Start/Stop "Eco-Start" Enable Button - Signal stuck low: Action

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

Refer to the relevant system wiring diagrams and check the auto stop/start switch circuit for short circuit to ground