Question about Cars & Trucks
Posted by Anonymous on
Code p 0500 is for the vehicle speed sensor (VSS) which works the speedo as well as the ratio changes
code p0720 refers to the output shaft sensor --ECM or transmission control module (TCM)
the vss reports to the tcm which reads the road speed and gear ratio and shifts the appropriate solenoid
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Posted on Jan 02, 2017
SOURCE: Duag code u1262, p0500 & p0720
Your codes are as follows:
U1262 communications bus fault
P0500 Vehicle Speed Sensor Malfunction
P0720 Output Speed Sensor Circuit Malfunction
What, if any, symptoms is your vehicle showing?
If your Vehicle Spped Sensor has gone bad, it can cause loss of anti-lock brakes, "anti-lock" or "brake" warning lamps on the dash, the speedometer or odometer may not work properly (or at all), your vehicle's RPM limiter may be decreased or automatic transmission shifting to be erratic.
Posted on Jan 19, 2009
If one speed sensor goes out, it will make your speedo stop working. I believe the sensors are about 200 a piece. You'll have to take it to the dealership to find out which one is malfunctioning as there are 5 of them total (I'm pretty sure). They only charged me 30 to put it in as it is really easy and that way it is warrantied by them.
One other problem I had was with the electric brake controller on my truck went haywire and when I disconnected it, my speedo came back to life.
Hope this helps!
Posted on Jan 31, 2010
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