Diagnostic Flow Chart
DIAGNOSTIC FLOW CHART
| Test | Result | Action |
|---|---|---|
| Know and understand the customer concerns | - | - |
| Check the fluid level and condition | - | - |
| Verify the concern by operating the vehicle | - | - |
| Check for non-factory installed items and verify correct installation | - | - |
| Check the shift linkage adjustments | - | - |
| Check TSBs and OASIS messages for vehicle concerns | - | - |
| Carry out quick test both KOER and KOEO | - | - |
| Record all codes | - | - |
| 1) Did you record any Diagnostic Trouble Codes? | ||
| Yes | Repair all hard Diagnostic Trouble Codes. Follow the pinpoint tests. Refer to the SELF-DIAGNOSTICS - EEC-V - GASOLINE & NGV article first, then this workshop manual. | |
| No | REFER to DIAGNOSIS BY SYMPTOM . then GO to Step 5. | |
| 2) Are any continuous test memory codes present? | ||
| Yes | Clear codes and carry out 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. Refer to the SELF-DIAGNOSTICS - EEC-V - GASOLINE & NGV article then this article, then GO to Step 4 | |
| No | GO to Step 4. | |
| 4) Is the concern repaired? | ||
| Yes | Carry out the final quick test to verify that no Diagnostic Trouble Codes are present. Clear memory codes. Return vehicle to customer. | |
| No | REFER to DIAGNOSIS BY SYMPTOM . | |
| 5) Are there any electrical concerns? | ||
| Yes | Install the scan tool and carry out output state control test, then GO to Step 6. | |
| No | Refer to the hydraulic and mechanical routine to diagnose and repair the concern, then GO to Step 7. | |
| 6) Was the transaxle concern corrected when the scan tool was installed? | ||
| Yes | Refer to the SELF-DIAGNOSTICS - EEC-V - GASOLINE & NGV article intermittent fault diagnosis section and use the scan tool to diagnose cause of concern in the processor, vehicle harness or external inputs (sensors or switches). | |
| No | Refer to the hydraulic and mechanical routine to diagnose the concern, then GO to Step 7. | |
| 7) Is the concern repaired? | ||
| Yes | Carry out the final quick test to verify that no diagnostic trouble codes are present. Clear memory codes. Return the vehicle to the customer. | |
| No | Get assistance from Technical Hotline. | |