If knock signal is over THD(Total Harmonic Distortion), the ECM sets DTC P1111.
Item | Detecting Condition | Possible Cause |
DTC Strategy |
•
Engine Oil Level, Spark Plug, Injector | 1. Engine Oil Level 2. Spark plug(gap, crack, contamination) 3. Knock Sensor |
Enable Conditions |
•
Engine Idle
•
Turbocharger ON(Ratio of air flow over 120%)
•
Coolant Temp. over 70 °C(158 °F)
•
Engine RPM > 2440 | |
Threshold Value |
•
Knock Signal > THD(Total Harmonic Distortion) | |
Diagnostic Time |
•
- | |
MIL ON Condition |
•
MIL OFF(DTC only) |
