rev counter not working

[j3gme]

Hi rev counter stopped working (T350) in fact the needle has gone the other way (clockwise) fault code reads "TECHO ZERO 134" any ideas what this could be?
Cheers

[VARLEYHYD]

Not sure but try this;

Switch Ignition on select the POD menu 8. Factory RPM Needle zero screen, then adjust the with buttons to see if the needle can be moved. If so move it back so needle rests in correct place.

Also try un plugged dash ECU for a few mins then reconnect


G

[j3gme]

Unpluging the two ribbons on the ecu dash but it didnt work. The needle has gone back to where it should be but that was before i unpluged the ecu. Would there be anything under the bonnet thats loose as i had an air con pump fit last week and perhaps somthing was touched/moved?
Thanks

[j3gme]

Hi rev counter still not working burst into life last week but stopped again last night. Seems to stop working when first starting the car whether it be a cold start or hot, never stops when actually driving checked dash ecu connections unplugged and left it 10 mins even disconnected battrey still no joy