Faulty Signal

ECM-310A ENGINE SPEED (RPM) SENSOR
FAULTY SIGNAL

Checking connector
- Ignition off.
- Check engine speed (RPM) sensor connector for contact resistance and oxidation according to [1][2]Checking Wiring and Terminals. Permanent Fault

Remedy as necessary.

Has the fault been found and remedied?
Yes - Testing Complete
No - Continue below.


Checking rotor
Check carrier plate/flywheel for damage and scratches through the engine speed (RPM) sensor hole.

Try a new engine speed (RPM) sensor if no fault has been detected on the carrier plate/flywheel.

Other information:
- To localize the engine speed (RPM) sensor, Locations
- To localize the carrier plate/flywheel, Locations

Remedy as necessary.


Fault-tracing information
If the fault is intermittent, do not verify fault-tracing if the fault does not recur.