| Symptom | Condition | Referring Table |
|---|---|---|
| No communication with the ECM | Not communication scan tool and ECM | Refer to Table 1: No Dialogue with the ECM:K9K . |
| Starting fault | The engine does not start | Refer to Table 2: The Engine Does Not Start:K9K . |
| The engine starts with difficulty or starts then stalls | Refer to Table 3: The Engine Starts with Difficulty or Starts Then Stalls:K9K . | |
| Starting difficult with warm engine | Refer to Table 4: Starting Difficult with Warm Engine:K9K . | |
| Idle speed fault | Rough idle speed (pumping) | Refer to Table 5: Rough Idle Speed (Pumping):K9K . |
| Idle speed too high or too low | Refer to Table 6: Idle Speed Too High / Too Low:K9K . | |
| Behavior while driving | Unexpected acceleration/deceleration and engine stalling | Refer to Table 7: Unexpected Acceleration / Deceleration and Engine Stalling:K9K . |
| Response fault | Refer to Table 8: Response Fault:K9K . | |
| Engine stop (timing) | Refer to Table 9: Engine Stop / Stalling:K9K . | |
| Engine jerking | Refer to Table 10: Engine Jerking:K9K . | |
| Lack of power | Refer to Table 11: Lack of Power:K9K . | |
| Too much power | Refer to Table 12: Too Much Power:K9K . | |
| Excessive consumption | Refer to Table 13: Excessive Consumption:K9K . | |
| Overspeed when lifting off acceleration or changing gear | Refer to Table 14: Overspeed When Lifting Off Accelerator or Changing Gear:K9K . | |
| Engine dies when pulling away | Refer to Table 15: Engine Dies on Pulling Away:K9K . | |
| Noise, odours or smoke | Clanking engine, noisy engine | Refer to Table 16: Engine Rattling, Noisy:K9K . |
| Blue, white or black smoke | Refer to Table 17: Blue, White or Black Smoke:K9K . | |
| Smoke (blue, white or black) on acceleration | Refer to Table 18: Blue, Black or White Smoke When Accelerating:K9K . |