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Home >> Mazda >> 2019 >> CX-9 Signature >> Repair and Diagnosis (Single Page) >> Transmission >> Automatic Trans >> On-Board Diagnostics - AWD System >> DTC P187B-00: AWD Control Module [Electronic AWD Control System] >> Diagnostic procedure
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Diagnostic procedure

DTC P187B:00 (ELECTRONIC AWD CONTROL SYSTEM) DIAGNOSTIC PROCEDURE

Step Inspection Action
1 INSPECT EACH TIRE DIAMETER
  • Are each tire diameter as specified?
Yes Go to the next step.
No Replace with specified tire.
2 VERIFY DTC TROUBLESHOOTING COMPLETED
Yes Replace the AWD control module, then go to the next step.
(See AWD CONTROL MODULE REMOVAL/INSTALLATION .)
No Go to the next step.
3 VERIFY NO DTC IS PRESENT
  • Are any DTCs present?
Yes Go to the applicable DTC inspection.
(See DTC TABLE [ELECTRONIC AWD CONTROL SYSTEM] .)
No DTC troubleshooting completed.