1998 Jeep Cherokee P0720 code problems

1998 JEEP CHEROKEE
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MIKKEL
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Computer problem
1998 Jeep Cherokee 6 cyl Four Wheel Drive Automatic

My jeep has a P0720 service code. I have replased the sender and cleared the code. While pulling out of the drivway the service light came on. I checked the code and the P0720 was back. Do I need to replace it? or do I have another problem? It had a problem with the automatic door locks locking and un-locking while driving it down the road. I'm at the end of my rope with this thing.
Apr 2, 2009 at 7:50 PM
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RACEFAN966
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OK this code is for the speed sensor. Output is low below 15 mph so it is setting a code and turning on the engine light. Now you can replace it and see what happens or if you have access to a scan tool and a digital multi meter we can do some testing. Let me know what you want to do.
Apr 3, 2009 at 9:11 AM