Troubleshooting Diagnostic Procedure
WARNING: This page is about a different car, the 2017 Mazda 3. However, it is still accessible from the selected car via links, so may be relevant.
Intention of troubleshooting procedure
- Step 1
- Perform a unit inspection of the ECT sensor No. 2.
- Step 2
- Perform a unit inspection of the IAT sensor No. 1.
- Step 3-4
- Verify that the primary malfunction is resolved and there are no other malfunctions.
| STEP | INSPECTION | RESULTS | ACTION |
|---|---|---|---|
| 1 | PURPOSE: DETERMINE INTEGRITY OF ECT SENSOR NO. 2
|
Yes | Replace the ECT sensor No. 2, then go to Step 3. (See ENGINE COOLANT TEMPERATURE (ECT) SENSOR REMOVAL/INSTALLATION [SKYACTIV-G 2.0, SKYACTIV-G 2.5] .) |
| No | Go to the next step. | ||
| 2 | PURPOSE: DETERMINE INTEGRITY OF IAT SENSOR NO. 1
|
Yes | Replace the MAF sensor/IAT sensor No. 1, then go to the next step. (See MASS AIR FLOW (MAF) SENSOR/INTAKE AIR TEMPERATURE (IAT) SENSOR NO. 1 REMOVAL/INSTALLATION [SKYACTIV-G 2.0, SKYACTIV-G 2.5] .) |
| No | Go to the next step. | ||
| 3 | PURPOSE: VERIFICATION OF VEHICLE REPAIR COMPLETION
|
Yes | Repeat the inspection from Step 1.
Go to the next step. |
| No | Go to the next step. | ||
| 4 | PURPOSE: VERIFY IF THERE IS ANY OTHER MALFUNCTION
|
Yes | Go to the applicable DTC inspection. (See DTC TABLE [PCM (SKYACTIV-G 2.0, SKYACTIV-G 2.5)] .) |
| No | DTC troubleshooting completed. |