ABS all wheel drive system is disabled message on dash?

Do you get this message on the dash." All wheel drive system disabled" If you are getting this message,then it has to be checked by the diagnostic tool.I -------------------- Are you getting ABS light on display.If yes then you vehicle has to be scanned for codes.
Two things can disable the AWD system, and that's an ABS fault, or the reardifferential solenoid. If there are no other lights, then the ABS probably isn't disabling it, because in order for the ABS to disable it, it would have to set a fault code and turn on the ABS indicator. That leaves us with the rear differential solenoid. Inside that solenoid is a temp sensor and when it reads the fluid it too hot, it will disable the AWD system so it can cool back off. The problem is that the sensor fails and reads hot all the time, keeping the system disabled, even when cool. Get install a scan tool and verify that the system is disabled due to over temp before replacing, because if I remember correctly, the solenoid is about $250 and you will need to buy a $25 bottle of fluid to top it off (even though you only need about 1/4 of the bottle).
On rare occasions, we see a corroded terminal at the pass through connector underneath the vehicle, behind the drivers seat. They can fill up with water and corrode the terminals and sometimes the terminals get corroded at the solenoid itself, but most of the cases the solenoid is faulty.

 This should help.Thanks.

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