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Home >> Mazda >> 2021 >> CX-9 Signature >> Repair and Diagnosis >> Engine Performance >> System >> On-Board Diagnostic - Engine Control System (2 Of 6) >> DTC P0126-00: Thermostat Stuck Open >> Function Inspection Using M-MDS

Function Inspection Using M-MDS

DIANOSTIC PROCEDURE - FUNCTION INSPECTION USING M-MDS

STEP INSPECTION RESULTS ACTION
1 PURPOSE: 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 PURPOSE: RECORD VEHICLE STATUS AT TIME OF DTC DETECTION TO UTILIZE WITH REPEATABILITY VERIFICATION
NOTE:
  • Recording can be facilitated using the screen capture function of the PC.
  • Record the FREEZE FRAME DATA/snapshot data on the repair order.
- Go to the next step.
3 PURPOSE: DETERMINE IF MALFUNCTION CAUSE IS ECT SENSOR No. 1 (PCM INPUT SIGNAL) OR OTHER PART Yes Inspect for DTC P0116:00 due to the high possibility of an ECT sensor No. 1 malfunction.
(See DTC P0116:00 [PCM (SKYACTIV-G 2.5T)] .)
No Go to Troubleshooting Diagnostic Procedure to perform the procedure from Step 1.