Menu +
Generic selectors
Exact matches only
Search in title
Search in content

DTC C1A77:11/C1A77:12/C1A77:49 [DSC HU/CM]

< Previous Next >

2016 – MX-5 – Brakes

DTC C1A77:11/C1A77:12/C1A77:49 [DSC HU/CM]

DTC

C1A77:11

Valve relay

C1A77:12

C1A77:49

DETECTION CONDITION

  • Malfunction detected in valve relay power supply voltage.

  • Valve relay does not operate normally.

FAIL-SAFE FUNCTION

POSSIBLE CAUSE

  • Open or short circuit in DSC HU/CM internal valve relay, or stuck valve relay

SYSTEM WIRING DIAGRAM

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 [DSC HU/CM].)

No

DTC troubleshooting completed.

< Previous Next >

© 2014 Mazda North American Operations, U.S.A.