DTC B1623-52: Switch Illumination Adjustment Control 5V Supply - Not activated: Action

NOTE: To validate the repair use the Jaguar Land Rover approved diagnostic equipment to perform the diagnostic routine - Enable Protected Outputs (205E). The diagnostic routine can be located on the diagnostic equipment within "BCM - ECU functions". When complete use the Jaguar Land Rover approved diagnostic equipment to perform the diagnostic routine - On Demand Self Test. If the repair is successful this DTC will no longer be set within the body control module

Refer to the electrical circuit diagrams and inspect the instrument panel switch illumination adjustment power supply circuit for short circuit to ground, short circuit to power. Repair the wiring harness as necessary