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Home >> Mazda >> 2017 >> CX-5 Grand Select, FWD >> Repair and Diagnosis >> Accessories & Equipment >> Communication Devices >> On-Board Diagnostic - Connectivity Master Unit >> DTC U2300:55 [Connectivity Master Unit] >> Diagnostic Procedure

Diagnostic Procedure

DTC U2300:55 DIAGNOSTIC PROCEDURE

Step Inspection Action
1 RESET CONFIGURATION DATA FROM INSTRUMENT CLUSTER TO CONNECTIVITY MASTER UNIT (CMU) Yes Using the M-MDS, re-perform the instrument cluster configuration using the As-Built data, then go to the next step.
(See INSTRUMENT CLUSTER CONFIGURATION (USING AS-BUILT DATA) .)
No Go to Step 3
2 VERIFY THAT REPAIRS HAVE BEEN COMPLETED Yes Replace the connectivity master unit (CMU), then go to the next step.
(See CONNECTIVITY MASTER UNIT (CMU) 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 [CONNECTIVITY MASTER UNIT] .)
No DTC troubleshooting completed.