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Home >> Mazda >> 2015 >> 3 SV, Automatic Trans >> Repair and Diagnosis >> Body & Frame >> Door Locks >> On-Board Diagnostic - Advanced Keyless Entry System >> DTC B11C4: 23 Request Switch (Liftgate) Circuit Malfunction >> Notes

DTC B11C4: 23 Request Switch (Liftgate) Circuit Malfunction: Notes

DTC B11C4:23 DETECTION CONDITION AND POSSIBLE CAUSE

Description  Request switch (liftgate) circuit malfunction 
Detection condition 
  • Start stop unit detected any of the following conditions at a vehicle speed of 5 km/h {3 mph} or more  .
    • The request switch (liftgate) is continuously ON for 2 min or more. 
    • The request switch (liftgate) was ON 7 times  before the vehicle speed decreased to less than 5 km/h {3 mph}. 
Fail-safe function  Not applicable
Possible cause 
  • Request switch (liftgate) connector or terminal malfunction
  • LF control unit connector or terminal malfunction
  • Short to ground in wiring harness between LF control unit terminal E and request switch (liftgate) terminal A
  • Request switch (liftgate) malfunction
  • LF control unit malfunction
  • Start stop unit malfunction
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