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Home >> Mazda >> 2012 >> 6 i Touring >> Repair and Diagnosis >> External Pages >> Different car >> Section 625 (On-Board Diagnostic [Blind Spot Monitoring System]) >> DTC B118D:11 [Blind Spot Monitoring (BSM)] >> Diagnostic Procedure

Diagnostic Procedure

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.
DIAGNOSTIC PROCEDURE

STEP INSPECTION ACTION
1 INSPECT POWER OUTER MIRROR (RH) CONNECTOR CONDITION 
  • Switch the ignition to off.
  • Disconnect the power outer mirror (RH) connector.
  • Inspect for poor connection (damaged/ pulled-out pins, corrosion)
  • Is there any malfunction?
Yes Repair or replace the connector or terminal, then go to Step 6.
No Go to the next step.
2 INSPECT BSM CONTROL MODULE (RH) CONNECTOR CONDITION 
  • Disconnect the BSM control module (RH) connector.
  • Inspect for poor connection (damaged/ pulled-out pins, corrosion).
  • Is there any malfunction?
Yes Repair or replace the connector or terminal, then go to Step 6.
No Go to the next step.
3 INSPECT BSM INDICATOR LIGHT (RH) CONTROL CIRCUIT FOR SHORT TO GROUND 
  • Inspect for continuity between power outer mirror (RH) terminal G (wiring harness-side) and body ground.
  • Is there continuity?
Yes Repair or replace the wiring harness for a possible short to ground, then go to Step 6.
No Go to the next step.
4 INSPECT POWER OUTER MIRROR (RH)  Yes Replace the power outer mirror (RH), then go to Step 6.
See POWER OUTER MIRROR REMOVAL/INSTALLATION .
No Go to the next step.
5 INSPECT BSM INDICATOR LIGHT (RH) 
  • Inspect the BSM indicator light (RH).
  • Is there any malfunction?
Yes Replace the outer mirror glass (RH), then go to the next step.
See OUTER MIRROR GLASS REMOVAL .
See OUTER MIRROR GLASS INSTALLATION .
No Go to the next step.
6 VERIFY TROUBLESHOOTING COMPLETED  Yes Replace the BSM control module (RH), then go to the next step.
See BLIND SPOT MONITORING (BSM) CONTROL MODULE REMOVAL/INSTALLATION .
No Go to the next step.
7 VERIFY THAT NO OTHER DTCs ARE RECORDED 
  • Are any DTCs present?
Yes Go to the applicable DTC inspection.
See DTC TABLE [BLIND SPOT MONITORING (BSM)] .
No DTC troubleshooting completed.