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Polaris Speedo Troubleshooting
Pull the 6 prong plug and test for 12 volts between ((A) Red/White +) and ((B) Brown -) on the plug not the speedometer, when the key is on.
If you see 12 to 13 volts with your meter do the same test with a small 12 volt light. If the light works, it is probably the speedometer.
If you do not have 12 volts between ((A) Red/White +) and ((B) Brown -) on the plug when the key is on, the speedometer may be OK and
you have a wiring problem elsewhere.
The brown/white wire (wire E) on the speedometer is where the AWD system gets the ground to make it work. 12 volts on this wire would be normal with the AWD system on and the 6 prong plug removed.
You can "test" the AWG system by bypassing the speedometer. Remove the 6 prong plug and use a straighten paper clip to slide the brown/white wire out of the 6 prong plug. Put the 6 prong plug back on the speedometer and tie the brown/white wire to ground.
If the AWD system works you can leave the speedometer bypass, just be careful when you turn on the AWD switch