DTC B1D66-46: Left Headlamp Power Module - Calibration/parameter memory failure: Action

NOTE: The power module is a service item

Clear the DTC. Turn the Headlamp Switch on, cycle the ignition state to start the engine, check for stored DTCs, if DTC returns suspect the Headlamp Power Module has an internal fault, replace as required. Refer to the new module/component installation note at the top of the DTC Index