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Home >> Mazda >> 2021 >> CX-30 Turbo Premium >> Repair and Diagnosis >> External Pages >> Different car >> Section 84 (On-Board Diagnostic - Electric Power Steering (EPS) System) >> DTC U3000-4B: EPS Control Module (Electric Power Steering (EPS)) >> Diagnostic Procedure

Diagnostic Procedure

WARNING: This page is about a different car, the 2020 Mazda CX-30. However, it is still accessible from the selected car via links, so may be relevant.
DTC U3000:4B (ELECTRIC POWER STEERING (EPS)) DIAGNOSTIC PROCEDURE

Step Inspection Results Action
1 ALLOW VEHICLE TO COOL DOWN
  • Switch the ignition off and allow the vehicle to cool down.
 - Go to the next step.
Repair completion verification 1 VERIFY DTC TROUBLESHOOTING COMPLETED
  • Using the M-MDS, clear the DTC from the EPS control module. (See CLEARING DTC .)
  • Using the M-MDS, perform the EPS control module DTC inspection. (See DTC INSPECTION .)
  • Is the same Pending DTC present?
 Yes Replace the EPS control module.
(See STEERING WHEEL AND COLUMN REMOVAL/INSTALLATION (US) .)
No Go to the next step.
Repair completion verification 2 VERIFY NO DTC IS PRESENT
  • Are any DTCs present?
 Yes Go to applicable DTC inspection.
(See DTC TABLE (ELECTRIC POWER STEERING (EPS) (US)) .)
No DTC troubleshooting completed.
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