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DTC U0415:00 [EPS CONTROL MODULE]

DTC

U0415:00

Signal error from DSC HU/CM

DETECTION CONDITION

  • Error detected in signal from DSC HU/CM via CAN communication.

FAIL-SAFE FUNCTION

  • Refer to “Fail-safe function table”. (See DTC TABLE [EPS CONTROL MODULE].)

POSSIBLE CAUSE

  • DSC HU/CM malfunction

SYSTEM WIRING DIAGRAM

—

Diagnostic Procedure

Step

Inspection

Action

1

VERIFY DSC HU/CM DTC
  • Using the M-MDS, perform the DSC HU/CM DTC inspection.

    (See DTC INSPECTION [DSC HU/CM].)

  • Are any DTCs present?

Yes

Go to the applicable DTC inspection.

(See DTC TABLE [DSC HU/CM].)

DTC troubleshooting completed, then go to the next step.

No

Go to the next step.

2

VERIFY DTC TROUBLESHOOTING COMPLETED
  • Using the M-MDS, clear the DTC from the EPS control module.

    (See CLEARING DTC [EPS CONTROL MODULE].)

  • Using the M-MDS, perform the EPS control module DTC inspection.

    (See DTC INSPECTION [EPS CONTROL MODULE].)

  • Is the same DTC present?

Yes

Repeat the inspection from Step1.

If the malfunction recurs, replace the DSC HU/CM, then go to the next step.

(See DSC HU/CM 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 [EPS CONTROL MODULE].)

No

DTC troubleshooting completed.

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Free to use workshop manual for your 2015+ Mk4 'ND' Mazda MX-5

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