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Home >> Mazda >> 2017 >> CX-9 Touring, AWD >> Repair and Diagnosis (Single Page) >> Brakes >> Anti-Lock Brakes >> On-Board Diagnostic - Dynamic Stability Control (DSC) >> DTC C1A77-11; C1A77-12; C1A77-49; Valve Relay Malfunction >> Diagnostic Procedure

Diagnostic Procedure

DIAGNOSTIC PROCEDURE

Step Inspection Action
1 VERIFY DSC HU/CM DTC Yes Replace the DSC HU/CM, then go to the next step.
(See DSC HU/CM REMOVAL/INSTALLATION .)
No Go to the next step.
2 VERIFY NO DTC IS PRESENT
  • Are any DTCs present?
Yes Go to the applicable DTC inspection.
(See DTC TABLE [ELECTRIC PARKING BRAKE] .)
No DTC troubleshooting completed.