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Home >> Mazda >> 2023 >> 3 Select, 4D Hatchback >> Repair and Diagnosis >> Brakes >> Traction Control >> On-Board Diagnostic - Dynamic Stability Control (2 Of 2) >> DTC U2300-56: Configuration Data [DSC HU/Control Module] >> Diagnostic Procedure

Diagnostic Procedure

DTC U2300:56 (DSC HU/Control Module) DIAGNOSTIC PROCEDURE

Step Inspection Results Action
1 INSPECT PCM FOR MALFUNCTION 
  • Perform the DTC inspection for PCM.

    (See DTC INSPECTION .)

  • Are any DTCs displayed?
 Yes Repair the malfunctioning location according to the applicable DTC troubleshooting.
(See DTC TABLE [PCM (SKYACTIV-G VIN M (US))] .)
(See DTC TABLE [PCM (SKYACTIV-G VIN Y (US))] .)
No Go to the next step.
2 INSPECT BODY CONTROL MODULE (BCM) FOR MALFUNCTION 
  • Perform the DTC inspection for body control module (BCM). (See DTC INSPECTION .)
  • Are any DTCs displayed?
 Yes Repair the malfunctioning location according to the applicable DTC troubleshooting.
(See DTC TABLE [BODY CONTROL MODULE (BCM) (US)] .)
No Go to the next step.
3 VERIFY REPLACEMENT RECORD OF DSC HU/Control Module 
  • Before performing the troubleshooting diagnostic procedure this time, verify if the DSC HU/Control Module was replaced.
  • Was the DSC HU/Control Module replaced?
 Yes After reimplementing the required servicing when replacing the DSC HU/Control Module in accordance with DSC HU/Control Module removal/installation, perform the repair completion verification.
(See DSC HU/Control Module REMOVAL/INSTALLATION [L.H.D. (US)] .)
No Go to the next step.
4 RESET CONFIGURATION DATA FOR BODY CONTROL MODULE (BCM) 
  • Perform the body control module (BCM) configuration using the M-MDS. (See CONFIGURATION .)
  • Clear the DTC recorded in the memory.

    (See CLEARING DTC .)

  • Switch the ignition ON (engine off or on) and wait for 30 s or more.
  • Perform the DTC inspection for the DSC HU/Control Module. (See DTC INSPECTION .)
  • Is the same Pending DTC present?
 Yes Perform the body control module (BCM) configuration again using the M-MDS and perform the repair completion verification.
No Go to repair completion verification 2.
Repair completion verification 1 VERIFY THAT VEHICLE IS REPAIRED 
  • Clear the DTC recorded in the memory.

    (See CLEARING DTC .)

  • Switch the ignition ON (engine off or on) and wait for 30 s or more.
  • Perform the DTC inspection for the DSC HU/Control Module. (See DTC INSPECTION .)
  • Is the same Pending DTC present?
 Yes Refer to the CONTROLLER AREA NETWORK (CAN) MALFUNCTION DIAGNOSIS FLOW to inspect for a CAN communication error.
(See CONTROLLER AREA NETWORK (CAN) MALFUNCTION DIAGNOSIS FLOW [(US)] .)
If the CAN communication is normal, perform the diagnosis from Step 1.
No Go to the next step.
Repair completion verification 2 VERIFY IF OTHER DTC IS DISPLAYED 
  • Perform the DTC inspection. (See DTC INSPECTION .)
  • Are any other DTCs displayed?
 Yes Repair the malfunctioning location according to the applicable DTC troubleshooting.
No DTC troubleshooting completed.
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