DTC B109E-29: Communication Error Between Body Control Module (BCM) And LF Control Unit [(BCM)]: Outline
DTC B109E:29 (BODY CONTROL MODULE) DETECTION CONDITION AND POSSIBLE CAUSE
| System malfunction location |
Communication error between body control module (BCM) and LF control unit |
| Detection condition |
- The body control module (BCM) detects the communication error with the LF control unit.
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| Fail-safe |
Not applicable |
| Possible cause |
- LF control unit connector or terminal malfunction
- Body control module (BCM) connector or terminal malfunction
- Short to ground in LF control unit signal circuit
- Open circuit in LF control unit signal circuit
- LF control unit malfunction
- Body control module (BCM) malfunction
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 Courtesy of MAZDA MOTORS CORP.
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