| Main Action |
- Signal plausibility check
|
- Poor connection
- Short in harness
- Knock sensor
- ECM
|
| Case 1 |
Prerequisite condition |
- Knock control is functioning:
- Engine coolant temperature (ECT) is higher than 65°C
- Mass air flow is greater than 0.8 g/rev.
- Ignition switch is turned ON.
- Engine operation is out of start state.
- Engine speed is faster than 2656 rpm.
|
| Threshold Value |
- Knock noise signal voltage is lower than 0.1367V
|
| Case 2 |
Prerequisite condition |
- Knock control is functioning:
- Engine coolant temperature (ECT) is higher than 65°C.
- Mass air flow is greater than 0.8 g/rev.
- Ignition switch is turned ON.
- Engine operation is out of start state.
|
| Threshold Value |
- Absolute value of difference between knock noise signal and its sliding average is lower than 0.0586V
|
| Diagnosis Time |
|
| MIL On Condition |
|