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Diagnostic Procedure

WARNING: This page is about a different car, the 2025 Mazda CX-5. However, it is still accessible from the selected car via links, so may be relevant.
DTC B10AD:86 (FRONT BODY CONTROL MODULE) DIAGNOSTIC PROCEDURE

Step Inspection Action
1 VERIFY IF MALFUNCTIONING LOCATION IS AUTO LIGHT SENSOR/HUMIDITY SENSOR/RAIN SENSOR DEPENDING ON REPEATABILITY 
  • Clear the DTC for the front body control module (FBCM) using the M-MDS. (See CLEARING DTC .)
  • Retrieve the front body control module (FBCM) DTCs using the M-MDS. (See DTC INSPECTION .)
  • Is the same DTC displayed?
 Yes Replace the auto light sensor/humidity sensor/rain sensor, then go to the next step.
(See RAIN SENSOR REMOVAL/INSTALLATION .)
No Go to Step 3.
2 VERIFY THAT REPAIRS HAVE BEEN COMPLETED 
  • Clear the DTC for the front body control module (FBCM) using the M-MDS. (See CLEARING DTC .)
  • Retrieve the front body control module (FBCM) DTCs using the M-MDS. (See DTC INSPECTION .)
  • Is the same DTC displayed?
 Yes Replace the front body control module (FBCM), then go to the next step.
(See FRONT BODY CONTROL MODULE (FBCM) REMOVAL/INSTALLATION .)
No Go to the next step.
3 VERIFY IF OTHER DTCs DISPLAYED 
  • Are any other DTCs displayed?
 Yes Repair or replace the malfunctioning part according to the applicable DTC troubleshooting.
(See DTC TABLE .)
No DTC troubleshooting completed.
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