The ECM monitors the voltage level on the engine speed sensor +5 volt supply circuit. If voltage falls below a calibratible limit then this fault is recorded.
Possible causes:
1) A short circuit to ground in the engine harness, sensor, or ECM.
Possible repairs:
1)Replace the engine speed sensor.
2)Replace the ECM.
3)Replace the engine harness.
We’ll never share your email address with a third-party
Reviews
There are no reviews yet.