DTC B1A09-1A: Speaker #9 - Circuit resistance below threshold: Action

NOTE: This DTC only applies to the InControl Touch Pro 11 speaker and 17 speaker audio systems

Refer to the appropriate SYSTEM WIRING DIAGRAMS information and check the front left door mid-range speaker circuit for short circuit between power and ground. Repair the wiring harness or install a new speaker as necessary
Using the Jaguar Land Rover approved diagnostic equipment, clear the DTCs and retest. If the fault persists, install a new audio amplifier module