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Home >> Mazda >> 2021 >> 3 Base >> Repair and Diagnosis (Single Page) >> Engine Performance >> System >> On-Board Diagnostic - Engine Control System (VINS 7, L, M) (4 Of 4) >> DTC U213D-00: Can Communication, Communication Error To TCM (Local Can) >> Diagnostic Procedure

Diagnostic Procedure

DTC U213D:00 (PCM, VINs 7, L, M, US) DIAGNOSTIC PROCEDURE

Step Inspection Results Action
1 RECORD VEHICLE STATUS WHEN DTC WAS DETECTED TO UTILIZE WITH REPEATABILITY VERIFICATION
  • Record the freeze frame data/snapshot data.
NOTE:
  • Recording can be facilitated using the screen capture function of the PC.
 - Go to the next step.
2 VERIFY RELATED REPAIR INFORMATION OR SERVICE INFORMATION AVAILABILITY
  • Verify related Service Bulletins, on-line repair information, or Service Information availability.
  • Is any related Information available?
 Yes Perform repair or diagnosis according to the available information.
  • If the vehicle is not repaired, go to the next step.
No Go to the next step.
3 INSPECT FOR OTHER RELATED DTCs
  • Perform the DTC inspection for the PCM. (See DTC INSPECTION .)
  • Are any other DTCs displayed?
 Yes Repair the malfunctioning location according to the applicable DTC troubleshooting.
(See DTC TABLE [PCM (VINs 7, L, M (US)] .)
No Go to the next step.
4 VERIFY TCM DTC
  • Perform the DTC inspection for the TCM. (See DTC INSPECTION .)
  • Are any DTCs displayed?
 Yes Repair the malfunctioning location according to the applicable DTC troubleshooting.
(See ON-BOARD DIAGNOSTIC SYSTEM DTC TABLE [TCM (ET6A-EL ) (US)] .)
(See ON-BOARD DIAGNOSTIC SYSTEM DTC TABLE [TCM (EV6A-EL, EV6AX-EL) (US)] .)
No Go to the next step.
5 INSPECT TCM FOR MALFUNCTION DEPENDING ON REPEATABILITY
  • Install/connect the part removed/disconnected during the troubleshooting procedure.
  • Clear the DTC recorded in the memory. (See CLEARING DTC .)
  • Replicate the vehicle conditions at the time the DTC was detected using the following procedure.
    • Start the engine.
  • Perform the DTC inspection for the PCM. (See DTC INSPECTION .)
  • Is the same Pending DTC present?
 Yes Replace the control valve body and perform the repair completion verification 1.
(See CONTROL VALVE BODY REMOVAL/INSTALLATION [ET6A-EL (US)] .)
(See CONTROL VALVE BODY REMOVAL/INSTALLATION [EV6A-EL, EV6AX-EL] .)
No Go to repair completion verification 2.
Repair completion verification 1 VERIFY THAT VEHICLE IS REPAIRED
  • Install/connect the part removed/disconnected during the troubleshooting procedure.
  • Clear the DTC recorded in the memory. (See CLEARING DTC .)
  • Replicate the vehicle conditions at the time the DTC was detected using the following procedure.
    • Start the engine.
  • Perform the DTC inspection for the PCM. (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 DTCs 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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