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Diagnostic procedure

WARNING: This page is about a different car, the 2014 Mazda 6. However, it is still accessible from the selected car via links, so may be relevant.
DTC U0305:00/U0405:00 (DYNAMIC STABILITY CONTROL) DIAGNOSTIC PROCEDURE

STEP INSPECTION ACTION
1 PERFORM VEHICLE CONTROL MODULE (V/C-MODULE) DTC INSPECTION 
Yes Go to applicable DTC inspection.
(See DTC TABLE [VEHICLE CONTROL MODULE (V/C-MODULE)] .)
No Go to the next step.
2 VERIFY THAT SAME DTC IS NOT PRESENT 
Yes Repeat the inspection from Step 1.
If the malfunction recurs, replace the Vehicle Control Module (V/C-Module), then go to the next step.
(See VEHICLE CONTROL MODULE (V/C-MODULE) REMOVAL/INSTALLATION [MAZDA RADAR CRUISE CONTROL (MRCC) SYSTEM] .)
No Go to the next step.
3 VERIFY THAT NO OTHER DTCs ARE PRESENT 
  • Are any other DTCs output?
Yes Go to the applicable DTC inspection.
(See ON-BOARD DIAGNOSIS [DYNAMIC STABILITY CONTROL (DSC)] .)
No DTC troubleshooting completed.