Diagnostic Flow Chart
Prior to carrying out the flow test, the following items should be checked:
- Know and understand the customer concerns.
- Verify the concern by operating the vehicle.
- Check the fluid level and condition.
- Check for non-factory installed items and verify correct installation.
- Check the selector lever linkage adjustments.
- Check TSBs and Mazda Tips messages for vehicle concerns.
- Carry out both KOER and KOEO self tests.
- Record all codes.
- Verify that the PCM is at the latest calibration release level.
DIAGNOSTIC FLOW CHART
| Test Step | Result | Action |
|---|---|---|
| 1) Did you record any DTCs? | Yes | REPAIR all hard DTCs. FOLLOW the pinpoint tests. For non-transaxle related DTCs, see DIAGNOSTIC TROUBLE CODE (DTC) INDEX - POWERTRAIN CONTROL MODULE (PCM) first, then DIAGNOSTIC TROUBLE CODE CHART for transaxle related DTCs. |
| No | See DIAGNOSIS BY SYMPTOM , then GO to step 5. | |
| 2) Are any continuous test memory codes present? | Yes | CLEAR codes and carry out the drive cycle test, then GO to the next step. See TRANSAXLE DRIVE CYCLE TEST . |
| No | GO to step 4. | |
| 3) Did the continuous test memory codes reappear? | Yes | REPAIR all continuous test memory codes. Follow the pinpoint tests. For non-transaxle related DTCs, see DIAGNOSTIC TROUBLE CODE (DTC) INDEX - POWERTRAIN CONTROL MODULE (PCM) first, then DIAGNOSTIC TROUBLE CODE CHART for transaxle related DTCs, then GO to the next step. |
| No | GO to the next step. | |
| 4) Is the concern repaired? | Yes | CARRY OUT the final PCM Quick Test to verify that no DTCs are present. See PCM QUICK TEST . CLEAR the memory codes. RETURN vehicle to customer. |
| No | See DIAGNOSIS BY SYMPTOM , then GO to next step. | |
| 5) Are there any electrical concerns? | Yes | INSTALL the scan tool and carry out the output state control test, see OUTPUT STATE CONTROL (OSC) MODE , then GO to the next step. |
| No | See DIAGNOSIS BY SYMPTOM , then GO to next step. | |
| 6) Was the transaxle concern corrected when the scan tool was installed? | Yes | See TEST 3: INTERMITTENT , and use the scan tool to diagnose cause of concern in the processor, vehicle harness or external inputs (sensors or switches). |
| No | See DIAGNOSIS BY SYMPTOM , then GO to the next step. | |
| 7) Is the concern repaired? | Yes | CARRY OUT the final quick test to verify that no DTCs are present. See PCM QUICK TEST . CLEAR the memory codes. RETURN the vehicle to the customer. |
| No | Concern should have been repaired. GO back through the Diagnostic Flow Chart and review other components that may have contributed to the concern, CHECK and diagnose those components. GET assistance from other sources. |