alexf20c wrote:you paid $140 for that scratched up gauge cluster?
My guess is that it is dog hair stuck to the clear cover by static cling.
Here's your dilemma, as I expected the illumination didn't work since it is a completely different type of light source. In the standard Pathfinder
cluster, the lighting is driven by a standard switched power source. In the "Fine Vision"
cluster, it is driven by the
cluster processor. I am assuming a switched source (pin 64) goes into the processor to tell the
cluster that the lights are on and the processor turns the light on. If you look at the "Fine Vision" diagram, you can see that the processor has an extra 12v source (pin 31) which the standard Pathfinder
cluster does not. This may be the power source for the
cluster illumination. My guess is that pin 64 still turns the illumination on, it just doesn't actually use pin 64 for voltage to light up the bulb.
As for the VDC and the TPMS indicators, they are lit simply because you do not have those systems. You just need to remove the bulbs and keep the sockets on the
cluster so it can keep the dust out.
Looking at the electrical diagram differences between the Pathfinder
cluster and the "Fine Vision"
cluster, the gear indicators are wired exactly the same on one side of the
cluster processor. This tells me that the issue is on the other side of the
cluster processor. The difference in terminals on the right side of the
cluster (in the wiring diagram) you can see that the standard Pathfinder
cluster has a pin 43 where the "Fine Vision"
cluster does not. If you look at the "Fine Vision" diagram, you can see that it has pins 23 and 49, where the standard
cluster does not.
The biggest problem is that the wiring diagrams do not tell you where all of the terminals of the
cluster processor lead to, so it may be extremely difficult to find out what each of those terminals does in the
cluster processor.