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Daniel Wilson
Daniel Wilson,
Category: Medium and Heavy Trucks
Satisfied Customers: 4402
Experience:  Owner at DJ Wilson
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1995 Pete 379 no speedometer Ecm shows the speed on computer

Customer Question

1995 Pete 379 no speedometer
Ecm shows the speed on computer cruise works
Can't retrieve the distance shows n/a
Submitted: 9 months ago.
Category: Medium and Heavy Trucks
Expert:  cumminsdr replied 9 months ago.

If the ECM is reading the Vehical speed sensor and you have no response on the speedo gauge suspect the gauge has failed. once you get the gauge checked out/replaced you can install an offset in the ecm for the odometer to read with the proper software to make adjustments to the ecm. This information is stored in the ecm

Customer: replied 9 months ago.
3406 e 5ek
Replaced speedo
Speedo cycles when motor is running
Expert:  cumminsdr replied 9 months ago.

ok

Expert:  Daniel Wilson replied 9 months ago.

Hi Erick, My name is***** will be glad to help. On the VSS at the tail of your transmission check if it is two wires or 4. some of the speed sensors were updated to a two function sensor where one half sends the signal to the ECM and the other is for the speedo. Check the harness and the actual sensor for problems. To adjust turn in to bottom out and back off 1/2 turn and lock the jam nut. I will post some schematics for you as well to help

Expert:  Daniel Wilson replied 9 months ago.

Click here for some schematics to help

Schematics

ENG Schematic

Expert:  Daniel Wilson replied 9 months ago.

Please dont forget to rate my service as that is how the site credits the experts for their time on the site. Let me know if you need more help

Expert:  Daniel Wilson replied 9 months ago.

Hi, Did you get this resolved?

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