B1710

Symptom: The tachometer needle indicates too high engine revs and may point to 7000 rpm at the end of the dial.

B1710

RPM signal faulty

The tachometer needle indicates too high engine revs and may point to 7000 rpm at the end of the dial.

Clear the trouble code, run the engine at different rpm for a few minutes and check whether the trouble code recurs.

If the trouble code does not recur, the fault was probably due to a computer error and can be disregarded.

If the trouble code recurs, continue tachometer fault diagnosis on .