Code 43: Knock Sensor Error: Notes
NOTE:
Test numbers refer to numbers on diagnostic chart.
- If conditions for code exist, SERVICE ENGINE SOON light will be on.
- If engine has an internal problem, sensor may be responding to mechanical noise.
- Checks knock sensor activity. Scan displays knock sensor activity in counts (about 35-50 at idle). Counts should rise as engine speed increases.
- Checks internal resistance of knock sensor.
- Checks knock sensor connections. A faulty connection or component will set a Code 43