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Home >> Mazda >> 2021 >> CX-30 Turbo Premium >> Repair and Diagnosis >> External Pages >> Different car >> Section 101 (On-Board Diagnostic - Body Control Module (BCM) (2 Of 3)) >> DTC B1512-87: Communication Error With Indicator Unit (BCM) >> Outline

DTC B1512-87: Communication Error With Indicator Unit (BCM): Outline

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DTC B1512:87 (BCM) DETECTION CONDITION AND POSSIBLE CAUSE

System malfunction location Communication error with indicator unit
Detection condition
  • The body control module (BCM) cannot receive the signals from the indicator unit.
Fail-safe Not applicable
Possible cause
  • Indicator unit connector or terminal malfunction
  • Body control module (BCM) connector or terminal malfunction
  • Short to ground in indicator unit LIN communication line
  • Open circuit in indicator unit LIN communication line
  • Indicator unit malfunction
  • Body control module (BCM) malfunction
G13559688Courtesy of MAZDA MOTORS CORP.