Land Rover B1d9f11 2021 · Tested & Working

: In many cases, this code is a "ghost code"—it often doesn't trigger a Check Engine light or a message on the dashboard. Functional Issues

The amplifier uses engine speed data to provide Speed Dependent Volume Control , which automatically adjusts your music volume to compensate for road and engine noise. land rover b1d9f11 2021

When this code appears on a 2021 Land Rover (model year specific due to changes in JLR’s electrical architecture introduced around late 2020/early 2021), owners report the following: : In many cases, this code is a