2004 Grand Cherokee with Part time light.

Hiya all. as I understand it if my selecta trak is in 2wheel mode I am only pushing power to the rear wheels. and the transfer case is not pushing any power to the front wheels.

However my Part time dash board light comes on intermittently while in 2 wheel mode. there is not pattern. I have tried to document time and road conditions and incline or decline, accel or decel and so far nothing.

I am now wondering if the part time dash board light is not an indication of the trasfer case in part time 4 wheel position but in stead feedback of some sort. like if rear wheels are spinning and front are not due to slippery road or such.

Does anyone have an Idea. I always thought the part time dash light was to let you know you were IN 4 wheel part time high mode.

Trying to be proactive before something breaks.

Thanks in advance.

 

Just a thought…raise the rear axle on jack stands, engage 2WD and with very light modulation observe for power transfer to the front axle and PT light