08/10/2026
A very nice 2021 Hybrid Range Rover Sport in with us for a breaking issue, or should we say next to no brakes at all 🥴
A pretty scary situation for the customer indeed.
The Hybrid L494 doesn’t have a conventional breaking system, It’s Infact a fly by wire system with a brake booster module. The brake booster module has its own 12v battery which also has a split charging system in the way of a power supply distribution box. It’s pretty common for the PSDB to fail causing the 12v auxiliary battery to go flat and then you have no brake assistance.
Diagnosed, repaired and back to the customer in no time 🤌🏼