DTC B128C-1A: Speaker #15 - Circuit resistance below threshold: Action

NOTE: Meridian® Surround and Meridian® Signature 3D surround audio systems only

Refer to the electrical circuit diagrams and test the front center mid-range speaker wiring harness for short circuit between positive and negative. Repair the wiring harness s necessary
Confirm speaker operation to check for internal failure, replace as necessary
Using the Jaguar Land Rover approved diagnostic equipment, clear the DTCs and retest