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Home >> Mazda >> 2019 >> 6 Signature >> Repair and Diagnosis (Single Page) >> Accessories & Equipment >> Drivers Assistance Systems - ADAS >> On-Board Diagnostics - Radar Unit >> DTC U0443-00: Error Signal Received From Rear Body Control Module (RBCM) >> Diagnostic Procedure
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Diagnostic Procedure

DTC U0443:00 RADAR UNIT DIAGNOSTIC PROCEDURE

Step Inspection Action
1 PERFORM DTC INSPECTION FOR REAR BODY CONTROL MODULE (RBCM) Yes Go to the applicable DTC inspection. (See DTC TABLE [REAR BODY CONTROL MODULE (RBCM)] .)
Go to Step 4.
No Go to the next step.
2 PERFORM DTC INSPECTION FOR INSTRUMENT CLUSTER Yes Go to the applicable DTC inspection. (See DTC TABLE [INSTRUMENT CLUSTER] .)
Go to Step 4.
No Go to the next step.
3 VERIFY IF MALFUNCTIONING LOCATION IS REAR BODY CONTROL MODULE (RBCM) DEPENDING ON REPEATABILITY Yes Replace the rear body control module (RBCM), then go to the next step.
(See REAR BODY CONTROL MODULE (RBCM) REMOVAL/INSTALLATION .)
No Go to Step 5.
4 VERIFY THAT REPAIRS HAVE BEEN COMPLETED Yes Repeat the inspection from Step 1.
Go to the next step.
No Go to the next step.
5 VERIFY THAT NO OTHER DTCs ARE PRESENT
  • Verify other DTCs displayed.
  • Are any other DTCs output?
Yes Perform the corresponding DTC inspection.
No DTC troubleshooting completed.