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Home >> Mazda >> 2016 >> CX-5 Touring, AWD >> Repair and Diagnosis (Single Page) >> Body & Frame >> Door Locks >> On-Board Diagnostic - Advanced Keyless Entry System >> DTC B13C3-29: Communication Error With LF Control Unit >> Notes

DTC B13C3-29: Communication Error With LF Control Unit: Notes

System malfunction location  Communication error with LF control unit
Detection condition 
  • The start stop unit detects communication error with LF control unit 10 times in a series.
Fail-safe 
  • Inhibits the door lock/unlock control using the advanced keyless entry system.
Possible cause 
  • LF control unit connector or terminal malfunction
  • Start stop unit connector or terminal malfunction
  • Short to ground in wiring harness between start stop unit terminal 2F and LF control unit terminal I
  • Open circuit in wiring harness between start stop unit terminal 2F and LF control unit terminal I
  • LF control unit malfunction
  • Start stop unit malfunction
G10938241