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Home >> Mazda >> 2020 >> CX-5 Signature >> Repair and Diagnosis (Single Page) >> Accessories & Equipment >> Communication Devices >> On-Board Diagnostic - Front Body Control Module (FBCM) >> DTC B10AD-86: Error Signal Received From Auto Light Sensor/Humidity Sensor/Rain Sensor >> Diagnostic Procedure
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Diagnostic Procedure

DTC B10AD:86 (FRONT BODY CONTROL MODULE) DIAGNOSTIC PROCEDURE

Step Inspection Action
1 PERFORM DTC INSPECTION AND VERIFY AUTO LIGHT SENSOR/HUMIDITY SENSOR/RAIN SENSOR MALFUNCTION
  • Clear the DTC for the front body control module (FBCM) using the M-MDS. (See CLEARING DTC .)
  • Switch the ignition ON (engine off or on) and wait for 5 s or more.
  • 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 .)
  • Switch the ignition ON (engine off or on) and wait for 5 s or more.
  • 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.