DTC B11FD-1F: Keyless Antenna (Exterior, LF) Circuit Malfunction (Advanced Keyless Entry System): Notes

DTC B11FD:1F (ADVANCED KEYLESS ENTRY SYSTEM) DETECTION CONDITION AND POSSIBLE CAUSE

Description	Keyless antenna (exterior, LF) circuit malfunction
Detection condition	Start stop unit detects an open circuit or short to ground in the keyless antenna (exterior, LF) circuit with the ignition switched off.
Fail-safe	Inhibits the door lock/unlock using the advanced keyless entry system.
Possible cause	Front outer handle (LH) connector or terminal malfunction LF control unit connector or terminal malfunction Short to ground in wiring harness between the following terminals: LF control unit terminal O-Front outer handle (LH) terminal B LF control unit terminal Q-Front outer handle (LH) terminal E Open circuit in wiring harness between the following terminals: LF control unit terminal O-Front outer handle (LH) terminal B LF control unit terminal Q-Front outer handle (LH) terminal E LF control unit malfunction Keyless antenna (exterior, LF) malfunction Start stop unit malfunction
Courtesy of MAZDA MOTORS CORP.