: Rubbing or "chaffing" of the wiring harness against sharp metal edges in the interior or chassis.
Pin corrosion inside the multi-plug connectors on the back of the amplifier unit. 3. Module Configuration Corruption land rover b1d9f-11
B1D9F-13- Engine Speed Input- circuit open (2B) - fullfatrr.com : Rubbing or "chaffing" of the wiring harness
These models share a common sensor module typically located near the rearview mirror, behind the glove box, or inside the HVAC air intake duct. behind the glove box
Active noise cancellation might stop working, causing more noticeable engine vibrations or road boom.