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Home >> Mazda >> 2021 >> CX-5 Sport, FWD >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 9 (On-Board Diagnostic - Automatic Transaxle (GW6A-El, GW6AX-El)) >> DTC U0442-00: Invalid Data Received From Pcm (Local Can Between TCM And Pcm) >> Diagnostic procedure

Diagnostic procedure

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DTC U0442:00 DIAGNOSTIC PROCEDURE

STEP INSPECTION ACTION
1 VERIFY RELATED REPAIR INFORMATION AVAILABILITY
  • Verify related Service Bulletins and/or on-line repair information availability.
  • Is any related repair information available?
 Yes Perform repair or diagnosis according to the available repair information.
  • If the vehicle is not repaired, go to the next step.
No Go to the next step.
2 VERIFY PCM DTC Yes Go to the applicable DTC inspection.
(See DTC TABLE [PCM (VIN Y)] .)
No Go to the next step.
3 VERIFY DTC TROUBLESHOOTING COMPLETED
  • Clear the DTC using the M-MDS. (See ON-BOARD DIAGNOSTIC SYSTEM DTC INSPECTION .)
  • Perform the following procedure to ensure that the DTC has been resolved:
    1. Start the engine and warm it up completely.
    2. Drive the vehicle for a while under the following conditions:
  • Selector lever position: D position
  • Perform the DTC inspection using the M-MDS. (See ON-BOARD DIAGNOSTIC SYSTEM DTC INSPECTION .)
  • Are any DTCs present?
 Yes Go to the applicable DTC inspection.
(See ON-BOARD DIAGNOSTIC SYSTEM DTC TABLE .)
No DTC troubleshooting completed.
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