| Case 1 |
DTC Strategy |
- Exhaust CVVT slow response
|
- Oil leak
- Engine oil contamination
- Faulty exhaust OCV
- Exhaust OCV filter contamination
- Faulty CVVT assembly (exhaust)
|
| Enable Condition |
- Time after engine start is greater than 1.7 to 5.2s
- Camshaft set-point movement is greater than 12°CRK within less than 1s
- Camshaft set-point is moved more than 3 times since engine start
- Engine speed is between 512 to 1504 RPM and 4992 RPM
- Engine oil temperature is between 20°C (68°F) and 120°C (248°F)
- Battery voltage is between 11V and 16V
|
| Threshold Value |
- CAM position movement is less than 4°CRK within 1s
|
| Case 2 |
DTC Strategy |
- Exhaust CVVT steady deviation
|
| Enable Condition |
- Time after engine start is greater than 1.7 to 5.2s
- Camshaft set-point is moved more than 3 times since engine start
- Difference between CAM set-point and actual position is greater than 5.25°CRK
- Engine speed is between 512 to 1504 RPM and 4992 RPM
- Engine oil temperature is between 20°C (68°F) and 120°C (248°F)
- Battery voltage is between 11V and 16V
|
| Threshold Value |
- The actual value of camshaft position is 85°CRK greater than set-point
|
| Diagnostic Time |
|
| MIL ON Condition |
|