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Home >> Mazda >> 2021 >> CX-9 Signature >> Repair and Diagnosis >> External Pages >> Different car >> Section 68 (On-Board Diagnostic - Front Body Control Module (FBCM)) >> DTC B10AF-12; Blower Relay Circuit Malfunction >> Notes

DTC B10AF-12; Blower Relay Circuit Malfunction: Notes

WARNING: This page is about a different car, the 2017 Mazda CX-9. However, it is still accessible from the selected car via links, so may be relevant.
DETECTION CONDITION & POSSIBLE CAUSE

Description Blower relay circuit malfunction
Detection condition
  • Front body control module (FBCM) detects a short to power supply in the blower relay circuit with the ignition switched ON (engine off or on).
Fail-safe Not applicable
Possible cause
  • Front blower relay malfunction
  • Rear blower relay malfunction
  • Front body control module (FBCM) connector or terminal malfunction
  • Short to power supply in wiring harness between the following terminals:
    • Front blower relay terminal D-Front body control module (FBCM) terminal 2Z
      • Rear blower relay terminal E-Front body control module (FBCM) terminal 2Z
  • Front body control module (FBCM) malfunction
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