The odometer data, I assume this readout is coming in through odometer readout when chosen, often goes through may other circutis on the way to the readout. Becasue most can have the selection of data changed via the steering wheel controls, the steering controls are part of the circuit. Often, because of this, the circuit runs through the radio as well. It is very hard to diagnose the data readout because of this.
The first thing to do would be to have the trouble codes pulled. Any Advance Auto or Auto Zone will do this for free. However, the PCM that controls this function is expensive. Unless you want to go to a salvage yard to get one, or have one pulled, you will find a new one very expensive and not easily replaced.
Wednesday, December 7th, 2011 AT 10:50 AM