Okay, I attached a wiring diagram of the speedometer system. The wires go directly to the speedometer and is decoded in the speedometer head itself.
You need a scope to check the actual signal to see if it is coming from the sensor. If you replaced the sensor, it could be wiring from the sensor to the speedometer or the speedometer head itself.
The 600 is a communication issue between the ECM and the TCM. This will not effect the ABS.
Roy
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Saturday, April 11th, 2020 AT 3:55 PM