Getting a code 720.... - Dodge Durango Forum
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post #1 of 2 Old 05-30-2010, 11:41 PM Thread Starter
GWhaley
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Getting a code 720....

Ok, here's the deal. My buddy has a 99 R/T and has some minor mods to it (Exhaust, cold air intake), and wanted to try a performance tune from my 3715 that I have.

I downloaded it for him and he took it for a good run. After he got home and started to drive it again, the check engine light came on.

code is this: 720 The Output Shaft Speed Sensor doesn't match the reported vehicle speed

I put the truck program back to stock and reset the code but it came back.

Coincidence? Bad sensor? And where is the sensor located on the tranny?

Thanks
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post #2 of 2 Old 05-31-2010, 12:21 AM
RTZoD
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The speed sensor is located in the overdrive gear case. The sensor is positioned over the park gear and monitors transmission output shaft rotating speed.
Not sure but I think this picture has a green arrow pointing at it. This is a 46RH but it should be close.




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Last edited by RTZoD; 05-31-2010 at 12:34 AM.
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