attn Wirring Guru's- question

Ok I have a 90 xj waggy with power everything. My question pertains to power mirror system. I have purchased a set of used power mirrors from a 97+ to adapt to my 90.
The 90 power mirror uses 4 wires and 3 feeds. The 97+ uses 5 wires and 4 feeds. I don't have the fsm in front of me right now, SO I am asking if anyone has ever done this swap successfully please provide your input. I searched and have only found guys running the new mirrors minus the power option. Thanks for any help..

I dont have too much knowlegde on the newer XJ's but did the 97+ XJ's have an auto driver setup option like some sedans? that fifth wire could be from the computer for the presets maybe.
I usually check for same color and location of wires on the movement motors and run some low power to each and see what they move, then use a wire meter on the sending switch to see what each wire is transmitting for each of the button movements for each wire.
Really you just have the Y axis, up and down (common, ground, hot feed) and the X axis, up and down.
Are the mirrors lighted? heated? turn signal lights in them? something out of the ordinary requiring another lead. Unless they just moved something off a relay to be changed up at the motor unit in the mirror.
I am not near my FSM right now but some dissection of the mirror should be easy enough and just follow the wires.

Clean-RC said:

Ok I have a 90 xj waggy with power everything. My question pertains to power mirror system. I have purchased a set of used power mirrors from a 97+ to adapt to my 90.
The 90 power mirror uses 4 wires and 3 feeds. The 97+ uses 5 wires and 4 feeds. I don't have the fsm in front of me right now, SO I am asking if anyone has ever done this swap successfully please provide your input. I searched and have only found guys running the new mirrors minus the power option. Thanks for any help..

Click to expand...

That spare wire on the 97+ is for heat.

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