mack granite 05 lose vss signal from vecu at 40 mph

[nelson76]

A mack granite 05 lose vss signal from vecu after 25 mph and allredy check the vss and wiring everything ok is like not comunication exist betwin vecu and others ecm

[turckster]

The sensor should have 100-200 ohms (usually 160 ohms)--measurement from the vecu connector. The sensor adjustment is 1 turn out after contact to the tone ring. If all of that is correct make sure the tone ring is tight on the yoke. When making the resistance check of the speedo sensor, wiggle the wiring to see if the value changes.