4.6L (1996-2004 Modular) MustangTechnical discussions on 1996-2004 4.6 Liter Modular Motors (2V and 4V) within. Sponsored by Cruizin Concepts
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It won't be an easy swap as you will need to upgrade the PCM from EEC-IV to EEC-V to drive the speedometer, tachometer, coolant temp, MIL, and a few other warning lights.
Here is the 1994 cluster wiring diagram:
Note that only the MIL, the auto-tranny O/D lamps and the tach are controlled by the PCM--and all directly controlled at that.
Here is the 2000 cluster wiring diagram.
On the 2000 the speedometer, tach, ECT, MIL, O/D indicator and other function are provided as digital data over the Multiplex Communication Network. In later models this became called thethe SCP (Standard Corporate Protocol) bus--and is in fact the OBD2 data bus.
A microprocessor in the cluster reads the digital data and then drives the gauges, all of which are just identical servo motors; not "real" gauges at all. Here's a shot of the backside of an '01 cluster with the electronics removed.
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