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Home >> Mazda >> 2017 >> CX-5 Grand Select, AWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 38 (On-Board Diagnostic [Front Body Control Module (FBCM)]) >> DTC B10A6-64: Light Switch Error Signal Received >> Notes

DTC B10A6-64: Light Switch Error Signal Received: 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 Light switch error signal received
Detection condition 
  • The front body control module (FBCM) receives error signals from the start stop unit for 5 s or more  with the ignition switched ON (engine off or on).
Fail-safe  -
Possible cause 
  • Start stop unit malfunction
  • Light switch malfunction
  • Front body control module (FBCM) malfunction
System wiring diagram  -
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