DTC B118C:15 [Blind Spot Monitoring (BSM)]: Notes
WARNING: This page is about a different car, the 2009 Mazda 6. However, it is still accessible from the selected car via links, so may be relevant.
B118C:15 REFERENCE
| DESCRIPTION |
Short to power supply or open circuit in BSM indicator light (LH) circuit |
| DETECTION CONDITION |
- The BSM control module (LH) monitors the BSM indicator light (LH) load current, while the BSM indicator light (LH) is operating. If the decrease in the BSM indicator light (LH) load current is less than the specification, the BSM control module (LH) determines that the BSM indicator light (LH) circuit has a short to power supply or open circuit.
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| POSSIBLE CAUSE |
- Connector or terminal malfunction
- Short to power supply in the wiring harness between power outer mirror (LH) terminal G and BSM control module (LH) terminal D
- Power outer mirror (LH) malfunction
- BSM indicator light (LH) malfunction
- Open circuit in wiring harness between power outer mirror (LH) terminal B and body ground
- Open circuit in wiring harness between power outer mirror (LH) terminal G and BSM control module (LH) terminal D
- BSM control module (LH) malfunction
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 Courtesy of MAZDA MOTORS CORP.
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