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Speedometer Issues

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Mopar1973Man

Mopar1973Man

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Pull the speed sensor back out of the differential and using a mirror and flashlight look in the hole for the tone wheel. Is the tone wheel centered in the hole or off to one side? When the axles are turned is the tone wheel all there no missing chunks or missing teeth?

 

Now you need to check the wiring from the sensor to the ABS module. With the plug pull on the sensor make a jumper wire between the two pins. Make sure the ignition is OFF. Now unplug the ABS module plugs and ohm out the rear sensor pins it should be 0 ohms but no more than 5 ohms. 

 

If all this checks out then you be sending your module off the ABS to someone to rebuild. There is Module Masters in Moscow, ID.

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