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Home >> Mazda >> 2017 >> CX-5 Grand Select, FWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 63 (On-Board Diagnostics - Auto A/C) >> DTC B1A61-11: B1A61-13: Passenger Compartment Temperature Sensor Circuit >> Notes

DTC B1A61-11: B1A61-13: Passenger Compartment Temperature Sensor Circuit: Notes

WARNING: This page is about a different car, the 2016 Mazda CX-5. However, it is still accessible from the selected car via links, so may be relevant.
System malfunction location 
  • B1A61:11: Passenger compartment temperature sensor circuit short to ground
  • B1A61:13: Passenger compartment temperature sensor circuit open
Detection condition 
  • Malfunction in wiring harness between passenger compartment temperature sensor and climate control unit
Fail-safe  Malfunction determined when IG SW at ON 
  • Passenger compartment temperature sensor input value is fixed at the value right before the malfunction.

    Malfunction already exists when IG SW turned to ON 

  • Passenger compartment temperature sensor input value is fixed at 25 °C {77 °F}. 
Possible cause 
  • Connector or terminal malfunction
  • Passenger compartment temperature sensor malfunction
  • Open circuit in wiring harness between climate control unit and passenger compartment temperature sensor
  • Short to ground in wiring harness between climate control unit and passenger compartment temperature sensor
  • Climate control unit malfunction
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