DTC B1336-13: Left Front Door External Antenna - Circuit open: Action

NOTE: If any other LF antenna short circuit to power DTC is also set, perform the relevant corrective action(s) first

Using JLR approved diagnostic equipment, clear the DTCs and retest. Perform routine - On Demand Self Test (0x0202). If the fault persists, refer to the appropriate system wiring diagrams and test the front left exterior door handle LF antenna circuit for open circuit, high resistance