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Home >> Mazda >> 2017 >> CX-5 Grand Select, FWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 67 (On-Board Diagnostic - Connectivity Master Unit) >> DTC B12BD-11: Rear Mount Camera Circuit Malfunction >> Notes

DTC B12BD-11: Rear Mount Camera Circuit Malfunction: 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.
Description Rear mount camera circuit malfunction
Detection condition 
  • The connectivity master unit (CMU) detects a voltage value for the rear mount camera circuit of within 5.8 V  or exceeding 6.2 V for 5 s or more  with the ignition switched ON (engine off or on).
Fail-safe  Not applicable
Possible cause 
  • Rear mount camera connector or terminal malfunction
  • Connectivity master unit (CMU) connector or terminal malfunction
  • Short to ground in wiring harness between the following terminals:
    • Connectivity master unit (CMU) terminal 1C-Rear mount camera terminal F
  • Rear mount camera malfunction
  • Connectivity master unit (CMU) malfunction
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